From 0e67d75f5a47cf262b2b2aedafa0d1caa72a24df Mon Sep 17 00:00:00 2001
From: DO YUNG YOON <steamshon@apache.org>
Date: Mon, 7 Mar 2016 18:18:37 +0900
Subject: [PATCH] add apache license header on codes.

---
 CHANGES                                       | 21 ++++++++++++++++++-
 build.sbt                                     | 19 +++++++++++++++++
 dev_support/graph_mysql/Dockerfile            | 19 +++++++++++++++++
 dev_support/graph_mysql/schema.sql            | 19 +++++++++++++++++
 loader/build.sbt                              | 19 +++++++++++++++++
 loader/loader.py                              | 16 ++++++++++++++
 loader/src/main/resources/log4j.properties    | 17 +++++++++++++++
 .../scala/subscriber/GraphSubscriber.scala    | 19 +++++++++++++++++
 .../subscriber/GraphSubscriberStreaming.scala | 19 +++++++++++++++++
 .../main/scala/subscriber/KafkaToHdfs.scala   | 19 +++++++++++++++++
 .../scala/subscriber/TestEdgeBuilder.scala    | 19 +++++++++++++++++
 .../scala/subscriber/TransferToHFile.scala    | 19 +++++++++++++++++
 .../subscriber/VertexDegreeBuilder.scala      | 19 +++++++++++++++++
 .../main/scala/subscriber/WalLogStat.scala    | 19 +++++++++++++++++
 .../main/scala/subscriber/WalLogToHDFS.scala  | 19 +++++++++++++++++
 .../subscriber/GraphSubscriberTest.scala      | 19 +++++++++++++++++
 .../subscriber/TransferToHFileTest.scala      | 19 +++++++++++++++++
 s2core/build.sbt                              | 19 +++++++++++++++++
 s2core/migrate/mysql/schema.sql               | 19 +++++++++++++++++
 s2core/src/main/resources/create_model.hql    | 19 +++++++++++++++++
 s2core/src/main/resources/logback.xml         | 20 ++++++++++++++++++
 s2core/src/main/resources/reference.conf      | 19 +++++++++++++++++
 .../scala/com/kakao/s2graph/core/Edge.scala   | 19 +++++++++++++++++
 .../kakao/s2graph/core/ExceptionHandler.scala | 19 +++++++++++++++++
 .../scala/com/kakao/s2graph/core/Graph.scala  | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/GraphElement.scala | 19 +++++++++++++++++
 .../kakao/s2graph/core/GraphExceptions.scala  | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/GraphUtil.scala    | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/JSONParser.scala   | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/Management.scala   | 21 ++++++++++++++++++-
 .../com/kakao/s2graph/core/OrderingUtil.scala | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/PostProcess.scala  | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/QueryParam.scala   | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/QueryResult.scala  | 19 +++++++++++++++++
 .../scala/com/kakao/s2graph/core/Vertex.scala | 19 +++++++++++++++++
 .../kakao/s2graph/core/mysqls/Bucket.scala    | 19 +++++++++++++++++
 .../s2graph/core/mysqls/ColumnMeta.scala      | 19 +++++++++++++++++
 .../s2graph/core/mysqls/Experiment.scala      | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Label.scala | 19 +++++++++++++++++
 .../s2graph/core/mysqls/LabelIndex.scala      | 19 +++++++++++++++++
 .../kakao/s2graph/core/mysqls/LabelMeta.scala | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Model.scala | 19 +++++++++++++++++
 .../kakao/s2graph/core/mysqls/Service.scala   | 19 +++++++++++++++++
 .../s2graph/core/mysqls/ServiceColumn.scala   | 19 +++++++++++++++++
 .../s2graph/core/parsers/WhereParser.scala    | 19 +++++++++++++++++
 .../s2graph/core/rest/RequestParser.scala     | 19 +++++++++++++++++
 .../kakao/s2graph/core/rest/RestHandler.scala | 19 +++++++++++++++++
 .../s2graph/core/storage/Deserializable.scala | 21 ++++++++++++++++++-
 .../s2graph/core/storage/SKeyValue.scala      | 19 +++++++++++++++++
 .../s2graph/core/storage/Serializable.scala   | 19 +++++++++++++++++
 .../kakao/s2graph/core/storage/Storage.scala  | 19 +++++++++++++++++
 .../core/storage/StorageDeserializable.scala  | 19 +++++++++++++++++
 .../core/storage/StorageSerializable.scala    | 19 +++++++++++++++++
 .../storage/hbase/AsynchbaseStorage.scala     | 19 +++++++++++++++++
 .../tall/IndexEdgeDeserializable.scala        | 19 +++++++++++++++++
 .../tall/IndexEdgeSerializable.scala          | 19 +++++++++++++++++
 .../wide/IndexEdgeDeserializable.scala        | 19 +++++++++++++++++
 .../wide/IndexEdgeSerializable.scala          | 19 +++++++++++++++++
 .../tall/SnapshotEdgeDeserializable.scala     | 19 +++++++++++++++++
 .../tall/SnapshotEdgeSerializable.scala       | 19 +++++++++++++++++
 .../wide/SnapshotEdgeDeserializable.scala     | 19 +++++++++++++++++
 .../wide/SnapshotEdgeSerializable.scala       | 19 +++++++++++++++++
 .../serde/vertex/VertexDeserializable.scala   | 19 +++++++++++++++++
 .../serde/vertex/VertexSerializable.scala     | 19 +++++++++++++++++
 .../kakao/s2graph/core/types/HBaseType.scala  | 21 ++++++++++++++++++-
 .../s2graph/core/types/InnerValLike.scala     | 19 +++++++++++++++++
 .../core/types/LabelWithDirection.scala       | 19 +++++++++++++++++
 .../kakao/s2graph/core/types/VertexId.scala   | 19 +++++++++++++++++
 .../s2graph/core/types/v1/InnerVal.scala      | 19 +++++++++++++++++
 .../s2graph/core/types/v2/InnerVal.scala      | 19 +++++++++++++++++
 .../kakao/s2graph/core/utils/DeferCache.scala | 19 +++++++++++++++++
 .../kakao/s2graph/core/utils/Extentions.scala | 19 +++++++++++++++++
 .../s2graph/core/utils/FutureCache.scala      | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/utils/Logger.scala | 19 +++++++++++++++++
 .../s2graph/core/utils/SafeUpdateCache.scala  | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/EdgeTest.scala     | 19 +++++++++++++++++
 .../s2graph/core/Integrate/CrudTest.scala     | 19 +++++++++++++++++
 .../core/Integrate/IntegrateCommon.scala      | 19 +++++++++++++++++
 .../s2graph/core/Integrate/QueryTest.scala    | 19 +++++++++++++++++
 .../Integrate/StrongLabelDeleteTest.scala     | 19 +++++++++++++++++
 .../core/Integrate/VertexTestHelper.scala     | 19 +++++++++++++++++
 .../core/Integrate/WeakLabelDeleteTest.scala  | 19 +++++++++++++++++
 .../kakao/s2graph/core/JsonParserTest.scala   | 19 +++++++++++++++++
 .../kakao/s2graph/core/OrderingUtilTest.scala | 19 +++++++++++++++++
 .../kakao/s2graph/core/QueryParamTest.scala   | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/TestCommon.scala   | 19 +++++++++++++++++
 .../s2graph/core/TestCommonWithModels.scala   | 19 +++++++++++++++++
 .../com/kakao/s2graph/core/VertexTest.scala   | 19 +++++++++++++++++
 .../kakao/s2graph/core/models/ModelTest.scala | 19 +++++++++++++++++
 .../s2graph/core/mysqls/ExperimentSpec.scala  | 19 +++++++++++++++++
 .../core/parsers/WhereParserTest.scala        | 19 +++++++++++++++++
 .../hbase/AsynchbaseQueryBuilderTest.scala    | 19 +++++++++++++++++
 .../storage/hbase/AsynchbaseStorageTest.scala | 21 ++++++++++++++++++-
 .../core/storage/hbase/IndexEdgeTest.scala    | 21 ++++++++++++++++++-
 .../s2graph/core/types/CompositeIdTest.scala  | 19 +++++++++++++++++
 .../s2graph/core/types/EdgeTypeTest.scala     | 19 +++++++++++++++++
 .../s2graph/core/types/InnerValTest.scala     | 19 +++++++++++++++++
 .../core/types/SourceVertexIdTest.scala       | 19 +++++++++++++++++
 .../core/types/TargetVertexIdTest.scala       | 19 +++++++++++++++++
 .../s2graph/core/types/VertexIdTest.scala     | 19 +++++++++++++++++
 .../s2graph/core/types/VertexTypeTest.scala   | 19 +++++++++++++++++
 s2counter_core/build.sbt                      | 19 +++++++++++++++++
 .../scala/s2/config/ConfigFunctions.scala     | 19 +++++++++++++++++
 .../scala/s2/config/S2CounterConfig.scala     | 19 +++++++++++++++++
 .../src/main/scala/s2/counter/TrxLog.scala    | 19 +++++++++++++++++
 .../scala/s2/counter/core/BytesUtil.scala     | 19 +++++++++++++++++
 .../scala/s2/counter/core/ExactCounter.scala  | 19 +++++++++++++++++
 .../main/scala/s2/counter/core/ExactKey.scala | 19 +++++++++++++++++
 .../s2/counter/core/ExactQualifier.scala      | 19 +++++++++++++++++
 .../scala/s2/counter/core/ExactStorage.scala  | 19 +++++++++++++++++
 .../s2/counter/core/RankingCounter.scala      | 21 ++++++++++++++++++-
 .../scala/s2/counter/core/RankingKey.scala    | 19 +++++++++++++++++
 .../scala/s2/counter/core/RankingResult.scala | 19 +++++++++++++++++
 .../s2/counter/core/RankingStorage.scala      | 19 +++++++++++++++++
 .../scala/s2/counter/core/RankingValue.scala  | 19 +++++++++++++++++
 .../s2/counter/core/RateRankingValue.scala    | 19 +++++++++++++++++
 .../s2/counter/core/TimedQualifier.scala      | 19 +++++++++++++++++
 .../s2/counter/core/v1/BytesUtilV1.scala      | 19 +++++++++++++++++
 .../core/v1/ExactStorageAsyncHBase.scala      | 19 +++++++++++++++++
 .../counter/core/v1/ExactStorageHBase.scala   | 19 +++++++++++++++++
 .../counter/core/v1/RankingStorageRedis.scala | 19 +++++++++++++++++
 .../s2/counter/core/v2/BytesUtilV2.scala      | 19 +++++++++++++++++
 .../counter/core/v2/ExactStorageGraph.scala   | 19 +++++++++++++++++
 .../s2/counter/core/v2/GraphOperation.scala   | 19 +++++++++++++++++
 .../counter/core/v2/RankingStorageGraph.scala | 19 +++++++++++++++++
 .../scala/s2/counter/decay/DecayFormula.scala | 19 +++++++++++++++++
 .../s2/counter/decay/ExpDecayFormula.scala    | 19 +++++++++++++++++
 .../src/main/scala/s2/counter/package.scala   | 19 +++++++++++++++++
 .../main/scala/s2/helper/CounterAdmin.scala   | 19 +++++++++++++++++
 .../scala/s2/helper/DistributedScanner.scala  | 19 +++++++++++++++++
 .../scala/s2/helper/HashShardingJedis.scala   | 19 +++++++++++++++++
 .../src/main/scala/s2/helper/Management.scala | 19 +++++++++++++++++
 .../src/main/scala/s2/helper/WithHBase.scala  | 19 +++++++++++++++++
 .../src/main/scala/s2/helper/WithRedis.scala  | 19 +++++++++++++++++
 .../main/scala/s2/models/CachedDBModel.scala  | 19 +++++++++++++++++
 .../src/main/scala/s2/models/Counter.scala    | 19 +++++++++++++++++
 .../src/main/scala/s2/models/DBModel.scala    | 19 +++++++++++++++++
 .../main/scala/s2/util/CartesianProduct.scala | 19 +++++++++++++++++
 .../main/scala/s2/util/CollectionCache.scala  | 19 +++++++++++++++++
 .../main/scala/s2/util/FunctionParser.scala   | 19 +++++++++++++++++
 .../src/main/scala/s2/util/Hashes.scala       | 19 +++++++++++++++++
 .../main/scala/s2/util/ReduceMapValue.scala   | 19 +++++++++++++++++
 .../src/main/scala/s2/util/Retry.scala        | 19 +++++++++++++++++
 .../src/main/scala/s2/util/SplitBytes.scala   | 19 +++++++++++++++++
 .../main/scala/s2/util/UnitConverter.scala    | 19 +++++++++++++++++
 .../src/test/resources/application.conf       | 19 +++++++++++++++++
 .../src/test/resources/log4j.properties       | 17 +++++++++++++++
 .../s2/counter/core/RankingCounterSpec.scala  | 19 +++++++++++++++++
 .../scala/s2/models/CounterModelSpec.scala    | 19 +++++++++++++++++
 .../test/scala/s2/models/CounterSpec.scala    | 19 +++++++++++++++++
 s2counter_loader/build.sbt                    | 19 +++++++++++++++++
 .../scala/s2/config/StreamingConfig.scala     | 19 +++++++++++++++++
 .../scala/s2/counter/CounterBulkLoader.scala  | 21 ++++++++++++++++++-
 .../scala/s2/counter/EraseDailyCounter.scala  | 19 +++++++++++++++++
 .../s2/counter/core/CounterEtlFunctions.scala | 19 +++++++++++++++++
 .../s2/counter/core/CounterEtlItem.scala      | 19 +++++++++++++++++
 .../s2/counter/core/CounterFunctions.scala    | 19 +++++++++++++++++
 .../s2/counter/core/DimensionProps.scala      | 19 +++++++++++++++++
 .../s2/counter/stream/EtlStreaming.scala      | 19 +++++++++++++++++
 .../stream/ExactCounterStreaming.scala        | 19 +++++++++++++++++
 .../counter/stream/GraphToETLStreaming.scala  | 19 +++++++++++++++++
 .../stream/RankingCounterStreaming.scala      | 19 +++++++++++++++++
 .../scala/s2/models/DefaultCounterModel.scala | 19 +++++++++++++++++
 .../src/test/resources/application.conf       | 19 +++++++++++++++++
 .../src/test/resources/log4j.properties       | 17 +++++++++++++++
 .../core/CounterEtlFunctionsSpec.scala        | 19 +++++++++++++++++
 .../s2/counter/core/DimensionPropsTest.scala  | 19 +++++++++++++++++
 .../stream/ExactCounterStreamingSpec.scala    | 19 +++++++++++++++++
 .../stream/RankingCounterStreamingSpec.scala  | 19 +++++++++++++++++
 s2rest_netty/build.sbt                        | 19 +++++++++++++++++
 s2rest_netty/conf/logger.xml                  | 20 ++++++++++++++++++
 s2rest_netty/conf/reference.conf              | 19 +++++++++++++++++
 .../src/main/resources/application.conf       |  0
 .../src/main/resources/reference.conf         | 19 +++++++++++++++++
 s2rest_netty/src/main/scala/Server.scala      | 19 +++++++++++++++++
 s2rest_play/app/Bootstrap.scala               | 19 +++++++++++++++++
 s2rest_play/app/actors/QueueActor.scala       | 19 +++++++++++++++++
 s2rest_play/app/config/Config.scala           | 19 +++++++++++++++++
 s2rest_play/app/config/CounterConfig.scala    | 19 +++++++++++++++++
 .../app/controllers/AdminController.scala     | 19 +++++++++++++++++
 .../controllers/ApplicationController.scala   | 19 +++++++++++++++++
 .../app/controllers/CounterController.scala   | 19 +++++++++++++++++
 .../app/controllers/EdgeController.scala      | 19 +++++++++++++++++
 .../controllers/ExperimentController.scala    | 19 +++++++++++++++++
 .../app/controllers/JsonBodyParser.scala      | 19 +++++++++++++++++
 .../app/controllers/PublishController.scala   | 19 +++++++++++++++++
 .../app/controllers/QueryController.scala     | 19 +++++++++++++++++
 .../app/controllers/TestController.scala      | 19 +++++++++++++++++
 .../app/controllers/VertexController.scala    | 19 +++++++++++++++++
 s2rest_play/app/models/ExactCounterItem.scala | 19 +++++++++++++++++
 s2rest_play/app/models/RankCounterItem.scala  | 19 +++++++++++++++++
 s2rest_play/app/models/package.scala          | 19 +++++++++++++++++
 s2rest_play/app/util/TestDataLoader.scala     | 19 +++++++++++++++++
 s2rest_play/build.sbt                         | 19 +++++++++++++++++
 s2rest_play/conf/application.conf             |  0
 s2rest_play/conf/logger.xml                   | 20 ++++++++++++++++++
 s2rest_play/conf/reference.conf               | 19 +++++++++++++++++
 s2rest_play/conf/routes                       | 19 +++++++++++++++++
 s2rest_play/conf/test.conf                    | 19 +++++++++++++++++
 .../test/benchmark/BenchmarkCommon.scala      | 19 +++++++++++++++++
 .../test/benchmark/GraphUtilSpec.scala        | 19 +++++++++++++++++
 .../test/benchmark/JsonBenchmarkSpec.scala    | 19 +++++++++++++++++
 .../benchmark/OrderingUtilBenchmarkSpec.scala | 19 +++++++++++++++++
 .../benchmark/SamplingBenchmarkSpec.scala     | 19 +++++++++++++++++
 .../test/controllers/PostProcessSpec.scala    | 19 +++++++++++++++++
 script/test.sh                                | 16 ++++++++++++++
 spark/build.sbt                               | 19 +++++++++++++++++
 spark/src/main/scala/kafka/KafkaHelper.scala  | 19 +++++++++++++++++
 .../streaming/kafka/KafkaRDDFunctions.scala   | 19 +++++++++++++++++
 .../spark/streaming/kafka/StreamHelper.scala  | 19 +++++++++++++++++
 .../scala/s2/config/S2ConfigFactory.scala     | 19 +++++++++++++++++
 .../main/scala/s2/spark/HashMapParam.scala    | 21 ++++++++++++++++++-
 spark/src/main/scala/s2/spark/RDDUtil.scala   | 19 +++++++++++++++++
 spark/src/main/scala/s2/spark/SparkApp.scala  | 19 +++++++++++++++++
 .../scala/s2/spark/SubscriberListener.scala   | 19 +++++++++++++++++
 spark/src/main/scala/s2/spark/WithKafka.scala | 21 ++++++++++++++++++-
 .../test/scala/s2/spark/SparkAppTest.scala    | 19 +++++++++++++++++
 .../scala/s2/spark/TestStreamingSpec.scala    | 19 +++++++++++++++++
 test.sh                                       | 16 ++++++++++++++
 219 files changed, 4121 insertions(+), 10 deletions(-)
 mode change 100755 => 100644 loader/src/main/resources/log4j.properties
 mode change 100755 => 100644 s2counter_core/src/test/resources/log4j.properties
 mode change 100755 => 100644 s2counter_loader/src/test/resources/log4j.properties
 delete mode 100644 s2rest_netty/src/main/resources/application.conf
 delete mode 100644 s2rest_play/conf/application.conf

diff --git a/CHANGES b/CHANGES
index 4c3eadbb..d13b5134 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,23 @@
- Change Log
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+ 
+Change Log
 
 Release 0.12.1 - unreleased
 
diff --git a/build.sbt b/build.sbt
index 5efa284c..85711636 100755
--- a/build.sbt
+++ b/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := "s2graph"
 
 lazy val commonSettings = Seq(
diff --git a/dev_support/graph_mysql/Dockerfile b/dev_support/graph_mysql/Dockerfile
index c6849f0b..65736658 100644
--- a/dev_support/graph_mysql/Dockerfile
+++ b/dev_support/graph_mysql/Dockerfile
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 FROM mysql
 
 MAINTAINER Jaesang Kim <honeysleep@gmail.com>
diff --git a/dev_support/graph_mysql/schema.sql b/dev_support/graph_mysql/schema.sql
index 2216896f..862062bd 100644
--- a/dev_support/graph_mysql/schema.sql
+++ b/dev_support/graph_mysql/schema.sql
@@ -1,3 +1,22 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+--
+
 CREATE DATABASE IF NOT EXISTS graph_dev;
 
 CREATE USER 'graph'@'%' IDENTIFIED BY 'graph';
diff --git a/loader/build.sbt b/loader/build.sbt
index 43e11261..2929da88 100644
--- a/loader/build.sbt
+++ b/loader/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 import sbtassembly.Plugin.AssemblyKeys._
 
 name := "s2loader"
diff --git a/loader/loader.py b/loader/loader.py
index 13457368..1d4dc329 100644
--- a/loader/loader.py
+++ b/loader/loader.py
@@ -1,4 +1,20 @@
 #!/usr/bin/python
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 
 import os, sys, urllib2, urllib
 
diff --git a/loader/src/main/resources/log4j.properties b/loader/src/main/resources/log4j.properties
old mode 100755
new mode 100644
index 09e570af..9a4b8ef9
--- a/loader/src/main/resources/log4j.properties
+++ b/loader/src/main/resources/log4j.properties
@@ -1,3 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
 log4j.rootLogger=${root.logger}
 root.logger=WARN,console
 log4j.appender.console=org.apache.log4j.ConsoleAppender
diff --git a/loader/src/main/scala/subscriber/GraphSubscriber.scala b/loader/src/main/scala/subscriber/GraphSubscriber.scala
index f4f78657..f1475ddc 100644
--- a/loader/src/main/scala/subscriber/GraphSubscriber.scala
+++ b/loader/src/main/scala/subscriber/GraphSubscriber.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 
diff --git a/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala b/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
index 1063560a..73c1ed48 100644
--- a/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
+++ b/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import org.apache.hadoop.hbase.HBaseConfiguration
diff --git a/loader/src/main/scala/subscriber/KafkaToHdfs.scala b/loader/src/main/scala/subscriber/KafkaToHdfs.scala
index 785cb69c..4f92cd89 100644
--- a/loader/src/main/scala/subscriber/KafkaToHdfs.scala
+++ b/loader/src/main/scala/subscriber/KafkaToHdfs.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import org.apache.spark.streaming.Durations._
diff --git a/loader/src/main/scala/subscriber/TestEdgeBuilder.scala b/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
index f5f43f8c..9b4083ad 100644
--- a/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
+++ b/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import org.apache.spark.SparkContext
diff --git a/loader/src/main/scala/subscriber/TransferToHFile.scala b/loader/src/main/scala/subscriber/TransferToHFile.scala
index 516bb39a..b2b8d1ac 100644
--- a/loader/src/main/scala/subscriber/TransferToHFile.scala
+++ b/loader/src/main/scala/subscriber/TransferToHFile.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 
diff --git a/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala b/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
index c8255ddb..031e94b1 100644
--- a/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
+++ b/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 /**
diff --git a/loader/src/main/scala/subscriber/WalLogStat.scala b/loader/src/main/scala/subscriber/WalLogStat.scala
index f5db2c16..8417519e 100644
--- a/loader/src/main/scala/subscriber/WalLogStat.scala
+++ b/loader/src/main/scala/subscriber/WalLogStat.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import java.text.SimpleDateFormat
diff --git a/loader/src/main/scala/subscriber/WalLogToHDFS.scala b/loader/src/main/scala/subscriber/WalLogToHDFS.scala
index 44902c22..c54f6f81 100644
--- a/loader/src/main/scala/subscriber/WalLogToHDFS.scala
+++ b/loader/src/main/scala/subscriber/WalLogToHDFS.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import java.text.SimpleDateFormat
diff --git a/loader/src/test/scala/subscriber/GraphSubscriberTest.scala b/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
index f9275094..2374ebb2 100644
--- a/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
+++ b/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import com.kakao.s2graph.core.Management
diff --git a/loader/src/test/scala/subscriber/TransferToHFileTest.scala b/loader/src/test/scala/subscriber/TransferToHFileTest.scala
index 7b3f72f7..b11a2e64 100644
--- a/loader/src/test/scala/subscriber/TransferToHFileTest.scala
+++ b/loader/src/test/scala/subscriber/TransferToHFileTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package subscriber
 
 import com.kakao.s2graph.core.Management
diff --git a/s2core/build.sbt b/s2core/build.sbt
index ca40ca76..6774c60c 100644
--- a/s2core/build.sbt
+++ b/s2core/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := """s2core"""
 
 scalacOptions ++= Seq("-deprecation")
diff --git a/s2core/migrate/mysql/schema.sql b/s2core/migrate/mysql/schema.sql
index 49113483..9ce746cb 100644
--- a/s2core/migrate/mysql/schema.sql
+++ b/s2core/migrate/mysql/schema.sql
@@ -1,3 +1,22 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--   http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing,
+-- software distributed under the License is distributed on an
+-- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+-- KIND, either express or implied.  See the License for the
+-- specific language governing permissions and limitations
+-- under the License.
+--
+
 CREATE DATABASE IF NOT EXISTS graph_dev;
 
 CREATE USER 'graph'@'%' IDENTIFIED BY 'graph';
diff --git a/s2core/src/main/resources/create_model.hql b/s2core/src/main/resources/create_model.hql
index 18c870b0..831a6558 100644
--- a/s2core/src/main/resources/create_model.hql
+++ b/s2core/src/main/resources/create_model.hql
@@ -1 +1,20 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 create 's2graph-dev', {NAME => 'e'}, {NAME => 'v'}
diff --git a/s2core/src/main/resources/logback.xml b/s2core/src/main/resources/logback.xml
index 18aa2bda..7c2a4957 100644
--- a/s2core/src/main/resources/logback.xml
+++ b/s2core/src/main/resources/logback.xml
@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
 <configuration>
     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
         <withJansi>true</withJansi>
diff --git a/s2core/src/main/resources/reference.conf b/s2core/src/main/resources/reference.conf
index c93d2047..1840306a 100644
--- a/s2core/src/main/resources/reference.conf
+++ b/s2core/src/main/resources/reference.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # APP PHASE
 phase = dev
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala b/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
index 8e6ad7df..fdbafbd4 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala b/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
index a965e90b..1a554416 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import java.util.Properties
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala b/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
index fdc85538..09c2d909 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import java.util
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala b/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
index e6c043db..ed27981f 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import org.hbase.async.{HBaseRpc}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala b/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
index fa186c20..669b6644 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala b/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
index 03599639..821332e6 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import scala.util.Random
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala b/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
index 9663f692..91568b9d 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.{InnerVal, InnerValLike}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala b/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
index ccf9d1f5..965d6b2a 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 
@@ -365,4 +384,4 @@ class Management(graph: Graph) {
       allIndices, allProps,
       old.consistencyLevel, hTableName, old.hTableTTL, old.schemaVersion, old.isAsync, old.compressionAlgorithm)
   }
-}
\ No newline at end of file
+}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala b/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
index 33ec7d95..3eb34705 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.InnerValLike
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/PostProcess.scala b/s2core/src/main/scala/com/kakao/s2graph/core/PostProcess.scala
index f301d688..cd028055 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/PostProcess.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/PostProcess.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.GraphExceptions.BadQueryException
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala b/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
index 0effa070..2c455b94 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.google.common.hash.Hashing
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala b/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
index 02d97362..067ddcf4 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala b/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
index c2b86c22..07ece6db 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
index edc61478..93c4b61c 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 /**
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
index 1b6d55f3..1081fdf8 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 import play.api.libs.json.Json
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
index 46b92ab3..5a0a9c03 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
index 005a01ef..abaf8153 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 import com.kakao.s2graph.core.GraphExceptions.ModelNotFoundException
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
index 47f4a2a6..bb13fc45 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 /**
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
index 3cd79951..a846cfc2 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 /**
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
index d41e9fa3..0c301f63 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 import java.util.concurrent.Executors
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
index 2840db81..92337d64 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
index 9ca32a05..8ae07b7c 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 /**
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala b/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
index 2a62b3b9..189324b9 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.parsers
 
 import com.kakao.s2graph.core.GraphExceptions.WhereParserException
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/rest/RequestParser.scala b/s2core/src/main/scala/com/kakao/s2graph/core/rest/RequestParser.scala
index f8129db0..a4e2116f 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/rest/RequestParser.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/rest/RequestParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.rest
 
 import java.util.concurrent.{Callable, TimeUnit}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/rest/RestHandler.scala b/s2core/src/main/scala/com/kakao/s2graph/core/rest/RestHandler.scala
index b1308543..2e99979d 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/rest/RestHandler.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/rest/RestHandler.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.rest
 
 import java.net.URL
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Deserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Deserializable.scala
index cff968f6..1bd6b1cc 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Deserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Deserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import com.kakao.s2graph.core.storage.{SKeyValue, StorageDeserializable}
@@ -22,4 +41,4 @@ trait Deserializable[E] extends StorageDeserializable[E] {
     val rowLen = srcIdLen + 4 + 1
     (srcVertexId, labelWithDir, labelIdxSeq, isInverted, rowLen)
   }
-}
\ No newline at end of file
+}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/SKeyValue.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/SKeyValue.scala
index a0aa261e..60dab6ef 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/SKeyValue.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/SKeyValue.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import org.apache.hadoop.hbase.util.Bytes
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Serializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Serializable.scala
index bee064b3..f3318b32 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Serializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Serializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import com.kakao.s2graph.core.storage.StorageSerializable
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Storage.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Storage.scala
index 8789502f..ef16db34 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/Storage.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/Storage.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import com.kakao.s2graph.core.ExceptionHandler.{Key, Val, KafkaMessage}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageDeserializable.scala
index 4b3300a4..5449725e 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import com.kakao.s2graph.core.utils.logger
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageSerializable.scala
index 575f4aba..236e2d39 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/StorageSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage
 
 import com.kakao.s2graph.core.types.{InnerValLikeWithTs, InnerValLike}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorage.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorage.scala
index 8441c6be..82f3895b 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorage.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorage.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.hbase
 
 
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeDeserializable.scala
index 014a5c92..a208bf5a 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.indexedge.tall
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeSerializable.scala
index 46ad15fa..842097bc 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/tall/IndexEdgeSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.indexedge.tall
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeDeserializable.scala
index f83dd1f9..2f05209f 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.indexedge.wide
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeSerializable.scala
index 716b6fb5..1ca974ce 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/indexedge/wide/IndexEdgeSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.indexedge.wide
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeDeserializable.scala
index c97bed62..d8c9a716 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.snapshotedge.tall
 
 import com.kakao.s2graph.core.mysqls.{LabelIndex, LabelMeta}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeSerializable.scala
index a507b906..3ebc8334 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/tall/SnapshotEdgeSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.snapshotedge.tall
 
 import com.kakao.s2graph.core.SnapshotEdge
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeDeserializable.scala
index 1174f504..0db57de5 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.snapshotedge.wide
 
 import com.kakao.s2graph.core.mysqls.{LabelIndex, LabelMeta}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeSerializable.scala
index e6074d93..15019b28 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/snapshotedge/wide/SnapshotEdgeSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.snapshotedge.wide
 
 import com.kakao.s2graph.core.SnapshotEdge
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexDeserializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexDeserializable.scala
index e355401a..01f543db 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexDeserializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexDeserializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.vertex
 
 import com.kakao.s2graph.core.storage.{CanSKeyValue, Deserializable}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexSerializable.scala b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexSerializable.scala
index 0c17592e..9601a4b3 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexSerializable.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/storage/serde/vertex/VertexSerializable.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.serde.vertex
 
 import com.kakao.s2graph.core.Vertex
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/HBaseType.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/HBaseType.scala
index 4b3b3dbb..5afbb4d1 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/HBaseType.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/HBaseType.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types
 
 import org.apache.hadoop.hbase.util.Bytes
@@ -160,4 +179,4 @@ trait HBaseDeserializableWithIsVertexId {
                 isVertexId: Boolean = false): (HBaseSerializable, Int)
 
   def notSupportedEx(version: String) = new RuntimeException(s"not supported version, $version")
-}
\ No newline at end of file
+}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/InnerValLike.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/InnerValLike.scala
index 8146f328..d14a67bb 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/InnerValLike.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/InnerValLike.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types
 
 import org.apache.hadoop.hbase.util._
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/LabelWithDirection.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/LabelWithDirection.scala
index 6207ad76..750b50f1 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/LabelWithDirection.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/LabelWithDirection.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/VertexId.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/VertexId.scala
index 13637bfa..d8c0be4e 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/VertexId.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/VertexId.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/v1/InnerVal.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/v1/InnerVal.scala
index 5111cbcd..54bd5345 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/v1/InnerVal.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/v1/InnerVal.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types.v1
 
 import com.kakao.s2graph.core.GraphExceptions.IllegalDataTypeException
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/types/v2/InnerVal.scala b/s2core/src/main/scala/com/kakao/s2graph/core/types/v2/InnerVal.scala
index 630e53d0..6b536745 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/types/v2/InnerVal.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/types/v2/InnerVal.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types.v2
 
 import com.kakao.s2graph.core.types._
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/utils/DeferCache.scala b/s2core/src/main/scala/com/kakao/s2graph/core/utils/DeferCache.scala
index 6777c28c..3ccfb419 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/utils/DeferCache.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/utils/DeferCache.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.utils
 
 import java.util.concurrent.TimeUnit
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/utils/Extentions.scala b/s2core/src/main/scala/com/kakao/s2graph/core/utils/Extentions.scala
index eea9a799..69b652e3 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/utils/Extentions.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/utils/Extentions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.utils
 
 import com.stumbleupon.async.{Callback, Deferred}
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/utils/FutureCache.scala b/s2core/src/main/scala/com/kakao/s2graph/core/utils/FutureCache.scala
index 17d9e8f0..b5263421 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/utils/FutureCache.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/utils/FutureCache.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.utils
 
 import java.util.concurrent.TimeUnit
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/utils/Logger.scala b/s2core/src/main/scala/com/kakao/s2graph/core/utils/Logger.scala
index d2810177..fead0c83 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/utils/Logger.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/utils/Logger.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.utils
 
 import play.api.libs.json.JsValue
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/utils/SafeUpdateCache.scala b/s2core/src/main/scala/com/kakao/s2graph/core/utils/SafeUpdateCache.scala
index d383b47d..c2b4833f 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/utils/SafeUpdateCache.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/utils/SafeUpdateCache.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.utils
 
 import java.util.concurrent.atomic.AtomicBoolean
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/EdgeTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/EdgeTest.scala
index 2aad32ff..0b8967ea 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/EdgeTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/EdgeTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.mysqls.LabelMeta
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/CrudTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/CrudTest.scala
index 1c097785..2f566450 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/CrudTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/CrudTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import com.kakao.s2graph.core.mysqls._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/IntegrateCommon.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/IntegrateCommon.scala
index f8bf7af7..873176e0 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/IntegrateCommon.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/IntegrateCommon.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import com.kakao.s2graph.core._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/QueryTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/QueryTest.scala
index 0b26608e..ff9ae0af 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/QueryTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/QueryTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import com.kakao.s2graph.core.GraphExceptions.BadQueryException
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/StrongLabelDeleteTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/StrongLabelDeleteTest.scala
index f4da49db..3104d1aa 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/StrongLabelDeleteTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/StrongLabelDeleteTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import java.util.concurrent.TimeUnit
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/VertexTestHelper.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/VertexTestHelper.scala
index ffbec115..ade2683a 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/VertexTestHelper.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/VertexTestHelper.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import com.kakao.s2graph.core.PostProcess
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/WeakLabelDeleteTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/WeakLabelDeleteTest.scala
index 2028c446..3bfc6d1d 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/WeakLabelDeleteTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/Integrate/WeakLabelDeleteTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.Integrate
 
 import java.util.concurrent.TimeUnit
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/JsonParserTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/JsonParserTest.scala
index 127f2fe0..3c31c951 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/JsonParserTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/JsonParserTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.{InnerValLike, InnerVal}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/OrderingUtilTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/OrderingUtilTest.scala
index 61818fcc..c7ec31b3 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/OrderingUtilTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/OrderingUtilTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.OrderingUtil._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/QueryParamTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/QueryParamTest.scala
index 544c17cd..c45ebf2b 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/QueryParamTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/QueryParamTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.LabelWithDirection
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/TestCommon.scala b/s2core/src/test/scala/com/kakao/s2graph/core/TestCommon.scala
index ed9aaa5c..f54fb18a 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/TestCommon.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/TestCommon.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.mysqls._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/TestCommonWithModels.scala b/s2core/src/test/scala/com/kakao/s2graph/core/TestCommonWithModels.scala
index f7c4bc1d..6ad1abfd 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/TestCommonWithModels.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/TestCommonWithModels.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core
 
 import com.kakao.s2graph.core.Management.JsonModel.{Index, Prop}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/VertexTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/VertexTest.scala
index 62b98b51..202b2040 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/VertexTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/VertexTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core
 //
 //import com.kakao.s2graph.core.types.{VertexId, InnerVal, InnerValLike}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/models/ModelTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/models/ModelTest.scala
index f66eabf2..c59be918 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/models/ModelTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/models/ModelTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.models
 
 import java.util.concurrent.ExecutorService
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/mysqls/ExperimentSpec.scala b/s2core/src/test/scala/com/kakao/s2graph/core/mysqls/ExperimentSpec.scala
index 078b5a93..b25a7479 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/mysqls/ExperimentSpec.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/mysqls/ExperimentSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.mysqls
 
 import java.util.Properties
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/parsers/WhereParserTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/parsers/WhereParserTest.scala
index febad3d2..ac161de0 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/parsers/WhereParserTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/parsers/WhereParserTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.parsers
 
 import com.kakao.s2graph.core._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseQueryBuilderTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseQueryBuilderTest.scala
index 128f2d7f..37269ed3 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseQueryBuilderTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseQueryBuilderTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.storage.hbase
 //
 //import com.kakao.s2graph.core.Graph
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorageTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorageTest.scala
index 87a0dcbf..a88ac0e1 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorageTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/AsynchbaseStorageTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.hbase
 
 import com.typesafe.config.ConfigFactory
@@ -33,4 +52,4 @@ class AsynchbaseStorageTest extends FunSuite with Matchers {
 //      println(kv.toString)
 //    }
 //  }
-}
\ No newline at end of file
+}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/IndexEdgeTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/IndexEdgeTest.scala
index e68fc20a..2a4b35f0 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/IndexEdgeTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/storage/hbase/IndexEdgeTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.storage.hbase
 
 import com.kakao.s2graph.core.mysqls.{Label, LabelMeta, LabelIndex}
@@ -78,4 +97,4 @@ class IndexEdgeTest extends FunSuite with Matchers with TestCommonWithModels {
       check(l, ts, to, props)
     }
   }
-}
\ No newline at end of file
+}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/CompositeIdTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/CompositeIdTest.scala
index d0142081..679f7b50 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/CompositeIdTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/CompositeIdTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.{TestCommonWithModels, GraphUtil, TestCommon}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/EdgeTypeTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/EdgeTypeTest.scala
index cfcedd10..39e2d202 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/EdgeTypeTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/EdgeTypeTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.types2._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/InnerValTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/InnerValTest.scala
index 69a299de..07a7718c 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/InnerValTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/InnerValTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.core.types
 
 import com.kakao.s2graph.core.TestCommonWithModels
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/SourceVertexIdTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/SourceVertexIdTest.scala
index b77e27b1..b35329a4 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/SourceVertexIdTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/SourceVertexIdTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.types2._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/TargetVertexIdTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/TargetVertexIdTest.scala
index 845de957..bfd4ddca 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/TargetVertexIdTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/TargetVertexIdTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.types2._
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexIdTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexIdTest.scala
index c0d1e59d..4dbc172d 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexIdTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexIdTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.types2.{HBaseType, VertexId, InnerValLike, InnerVal}
diff --git a/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexTypeTest.scala b/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexTypeTest.scala
index 284601b5..0ccc2069 100644
--- a/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexTypeTest.scala
+++ b/s2core/src/test/scala/com/kakao/s2graph/core/types/VertexTypeTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 //package com.kakao.s2graph.core.types
 //
 //import com.kakao.s2graph.core.TestCommon
diff --git a/s2counter_core/build.sbt b/s2counter_core/build.sbt
index 8a928ef3..4a49bd3e 100644
--- a/s2counter_core/build.sbt
+++ b/s2counter_core/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := "s2counter-core"
 
 scalacOptions ++= Seq("-feature", "-deprecation", "-language:existentials")
diff --git a/s2counter_core/src/main/scala/s2/config/ConfigFunctions.scala b/s2counter_core/src/main/scala/s2/config/ConfigFunctions.scala
index 20d07ce7..db698d13 100644
--- a/s2counter_core/src/main/scala/s2/config/ConfigFunctions.scala
+++ b/s2counter_core/src/main/scala/s2/config/ConfigFunctions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.config
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/config/S2CounterConfig.scala b/s2counter_core/src/main/scala/s2/config/S2CounterConfig.scala
index fcd0e6ac..aa7b27c0 100644
--- a/s2counter_core/src/main/scala/s2/config/S2CounterConfig.scala
+++ b/s2counter_core/src/main/scala/s2/config/S2CounterConfig.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.config
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/counter/TrxLog.scala b/s2counter_core/src/main/scala/s2/counter/TrxLog.scala
index c1db356f..d70cf3e1 100644
--- a/s2counter_core/src/main/scala/s2/counter/TrxLog.scala
+++ b/s2counter_core/src/main/scala/s2/counter/TrxLog.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter
 
 import play.api.libs.json.Json
diff --git a/s2counter_core/src/main/scala/s2/counter/core/BytesUtil.scala b/s2counter_core/src/main/scala/s2/counter/core/BytesUtil.scala
index 1d945ed5..1a77769d 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/BytesUtil.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/BytesUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/core/ExactCounter.scala b/s2counter_core/src/main/scala/s2/counter/core/ExactCounter.scala
index 7f36681a..fa5e4b01 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/ExactCounter.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/ExactCounter.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/counter/core/ExactKey.scala b/s2counter_core/src/main/scala/s2/counter/core/ExactKey.scala
index 63aca51d..25169292 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/ExactKey.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/ExactKey.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import s2.models.Counter
diff --git a/s2counter_core/src/main/scala/s2/counter/core/ExactQualifier.scala b/s2counter_core/src/main/scala/s2/counter/core/ExactQualifier.scala
index f4ac708b..73945d92 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/ExactQualifier.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/ExactQualifier.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import java.util
diff --git a/s2counter_core/src/main/scala/s2/counter/core/ExactStorage.scala b/s2counter_core/src/main/scala/s2/counter/core/ExactStorage.scala
index 6a81f416..592b0be7 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/ExactStorage.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/ExactStorage.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import s2.counter.core.ExactCounter.ExactValueMap
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RankingCounter.scala b/s2counter_core/src/main/scala/s2/counter/core/RankingCounter.scala
index b98ef309..862b3ff2 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RankingCounter.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RankingCounter.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import java.util.concurrent.TimeUnit
@@ -102,4 +121,4 @@ class RankingCounter(config: Config, storage: RankingStorage) {
 
 object RankingCounter {
   type RankingValueMap = Map[String, RankingValue]
-}
\ No newline at end of file
+}
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RankingKey.scala b/s2counter_core/src/main/scala/s2/counter/core/RankingKey.scala
index 7d706255..269b6f97 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RankingKey.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RankingKey.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RankingResult.scala b/s2counter_core/src/main/scala/s2/counter/core/RankingResult.scala
index 42fae3e7..4f45a258 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RankingResult.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RankingResult.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RankingStorage.scala b/s2counter_core/src/main/scala/s2/counter/core/RankingStorage.scala
index b643bd80..fb11f726 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RankingStorage.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RankingStorage.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import s2.counter.core.RankingCounter.RankingValueMap
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RankingValue.scala b/s2counter_core/src/main/scala/s2/counter/core/RankingValue.scala
index 4b676338..835206c8 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RankingValue.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RankingValue.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/core/RateRankingValue.scala b/s2counter_core/src/main/scala/s2/counter/core/RateRankingValue.scala
index eca3abc7..21f4d1d8 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/RateRankingValue.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/RateRankingValue.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/core/TimedQualifier.scala b/s2counter_core/src/main/scala/s2/counter/core/TimedQualifier.scala
index b763bc2f..e8457465 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/TimedQualifier.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/TimedQualifier.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import java.text.SimpleDateFormat
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v1/BytesUtilV1.scala b/s2counter_core/src/main/scala/s2/counter/core/v1/BytesUtilV1.scala
index 1b70f63d..32668de9 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v1/BytesUtilV1.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v1/BytesUtilV1.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v1
 
 import org.apache.hadoop.hbase.util.Bytes
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageAsyncHBase.scala b/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageAsyncHBase.scala
index 6aae3cd0..6437a041 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageAsyncHBase.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageAsyncHBase.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v1
 
 import java.util
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageHBase.scala b/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageHBase.scala
index a664de4f..fa94fa30 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageHBase.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v1/ExactStorageHBase.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v1
 
 import com.kakao.s2graph.core.Graph
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v1/RankingStorageRedis.scala b/s2counter_core/src/main/scala/s2/counter/core/v1/RankingStorageRedis.scala
index ea15a9c5..f6b153ff 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v1/RankingStorageRedis.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v1/RankingStorageRedis.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v1
 
 import java.lang
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v2/BytesUtilV2.scala b/s2counter_core/src/main/scala/s2/counter/core/v2/BytesUtilV2.scala
index f839221f..0691f5ba 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v2/BytesUtilV2.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v2/BytesUtilV2.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v2
 
 import org.apache.hadoop.hbase.util._
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v2/ExactStorageGraph.scala b/s2counter_core/src/main/scala/s2/counter/core/v2/ExactStorageGraph.scala
index 2b225c88..7f914a19 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v2/ExactStorageGraph.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v2/ExactStorageGraph.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v2
 
 import com.kakao.s2graph.core.mysqls.Label
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v2/GraphOperation.scala b/s2counter_core/src/main/scala/s2/counter/core/v2/GraphOperation.scala
index 0f43a520..3fafbf51 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v2/GraphOperation.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v2/GraphOperation.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v2
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/counter/core/v2/RankingStorageGraph.scala b/s2counter_core/src/main/scala/s2/counter/core/v2/RankingStorageGraph.scala
index 18d7eda5..9bdb127f 100644
--- a/s2counter_core/src/main/scala/s2/counter/core/v2/RankingStorageGraph.scala
+++ b/s2counter_core/src/main/scala/s2/counter/core/v2/RankingStorageGraph.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core.v2
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2counter_core/src/main/scala/s2/counter/decay/DecayFormula.scala b/s2counter_core/src/main/scala/s2/counter/decay/DecayFormula.scala
index 66e1b936..f3cbf0f7 100644
--- a/s2counter_core/src/main/scala/s2/counter/decay/DecayFormula.scala
+++ b/s2counter_core/src/main/scala/s2/counter/decay/DecayFormula.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.decay
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/decay/ExpDecayFormula.scala b/s2counter_core/src/main/scala/s2/counter/decay/ExpDecayFormula.scala
index 6de9f692..47eefde2 100644
--- a/s2counter_core/src/main/scala/s2/counter/decay/ExpDecayFormula.scala
+++ b/s2counter_core/src/main/scala/s2/counter/decay/ExpDecayFormula.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.decay
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/counter/package.scala b/s2counter_core/src/main/scala/s2/counter/package.scala
index 40a9e410..3fc77aea 100644
--- a/s2counter_core/src/main/scala/s2/counter/package.scala
+++ b/s2counter_core/src/main/scala/s2/counter/package.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/helper/CounterAdmin.scala b/s2counter_core/src/main/scala/s2/helper/CounterAdmin.scala
index 3cf9181c..0f3cafb3 100644
--- a/s2counter_core/src/main/scala/s2/helper/CounterAdmin.scala
+++ b/s2counter_core/src/main/scala/s2/helper/CounterAdmin.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import com.kakao.s2graph.core.Graph
diff --git a/s2counter_core/src/main/scala/s2/helper/DistributedScanner.scala b/s2counter_core/src/main/scala/s2/helper/DistributedScanner.scala
index dcf4d03e..fa961f96 100644
--- a/s2counter_core/src/main/scala/s2/helper/DistributedScanner.scala
+++ b/s2counter_core/src/main/scala/s2/helper/DistributedScanner.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import java.util
diff --git a/s2counter_core/src/main/scala/s2/helper/HashShardingJedis.scala b/s2counter_core/src/main/scala/s2/helper/HashShardingJedis.scala
index 395486dc..ac2343a2 100644
--- a/s2counter_core/src/main/scala/s2/helper/HashShardingJedis.scala
+++ b/s2counter_core/src/main/scala/s2/helper/HashShardingJedis.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/helper/Management.scala b/s2counter_core/src/main/scala/s2/helper/Management.scala
index 266cabaf..bb4709dd 100644
--- a/s2counter_core/src/main/scala/s2/helper/Management.scala
+++ b/s2counter_core/src/main/scala/s2/helper/Management.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/helper/WithHBase.scala b/s2counter_core/src/main/scala/s2/helper/WithHBase.scala
index ae3ff1e7..1ffa6091 100644
--- a/s2counter_core/src/main/scala/s2/helper/WithHBase.scala
+++ b/s2counter_core/src/main/scala/s2/helper/WithHBase.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import com.stumbleupon.async.{Callback, Deferred}
diff --git a/s2counter_core/src/main/scala/s2/helper/WithRedis.scala b/s2counter_core/src/main/scala/s2/helper/WithRedis.scala
index 20465777..1dddd037 100644
--- a/s2counter_core/src/main/scala/s2/helper/WithRedis.scala
+++ b/s2counter_core/src/main/scala/s2/helper/WithRedis.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.helper
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/models/CachedDBModel.scala b/s2counter_core/src/main/scala/s2/models/CachedDBModel.scala
index 5da02656..08729062 100644
--- a/s2counter_core/src/main/scala/s2/models/CachedDBModel.scala
+++ b/s2counter_core/src/main/scala/s2/models/CachedDBModel.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import s2.util.{CollectionCache, CollectionCacheConfig}
diff --git a/s2counter_core/src/main/scala/s2/models/Counter.scala b/s2counter_core/src/main/scala/s2/models/Counter.scala
index e26e071a..7620e5d8 100644
--- a/s2counter_core/src/main/scala/s2/models/Counter.scala
+++ b/s2counter_core/src/main/scala/s2/models/Counter.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/models/DBModel.scala b/s2counter_core/src/main/scala/s2/models/DBModel.scala
index 6cb34b96..37ffaf96 100644
--- a/s2counter_core/src/main/scala/s2/models/DBModel.scala
+++ b/s2counter_core/src/main/scala/s2/models/DBModel.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import com.typesafe.config.Config
diff --git a/s2counter_core/src/main/scala/s2/util/CartesianProduct.scala b/s2counter_core/src/main/scala/s2/util/CartesianProduct.scala
index 2077e3f0..0de1cff0 100644
--- a/s2counter_core/src/main/scala/s2/util/CartesianProduct.scala
+++ b/s2counter_core/src/main/scala/s2/util/CartesianProduct.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/util/CollectionCache.scala b/s2counter_core/src/main/scala/s2/util/CollectionCache.scala
index 122f87ac..92624bc3 100644
--- a/s2counter_core/src/main/scala/s2/util/CollectionCache.scala
+++ b/s2counter_core/src/main/scala/s2/util/CollectionCache.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 import java.net.InetAddress
diff --git a/s2counter_core/src/main/scala/s2/util/FunctionParser.scala b/s2counter_core/src/main/scala/s2/util/FunctionParser.scala
index 2454b0f7..b3c8f5bf 100644
--- a/s2counter_core/src/main/scala/s2/util/FunctionParser.scala
+++ b/s2counter_core/src/main/scala/s2/util/FunctionParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/util/Hashes.scala b/s2counter_core/src/main/scala/s2/util/Hashes.scala
index 2edbcd84..b36817c2 100644
--- a/s2counter_core/src/main/scala/s2/util/Hashes.scala
+++ b/s2counter_core/src/main/scala/s2/util/Hashes.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 import org.apache.hadoop.hbase.util.Bytes
diff --git a/s2counter_core/src/main/scala/s2/util/ReduceMapValue.scala b/s2counter_core/src/main/scala/s2/util/ReduceMapValue.scala
index 9c13fa08..3b247508 100644
--- a/s2counter_core/src/main/scala/s2/util/ReduceMapValue.scala
+++ b/s2counter_core/src/main/scala/s2/util/ReduceMapValue.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/util/Retry.scala b/s2counter_core/src/main/scala/s2/util/Retry.scala
index d1f72137..946f3007 100644
--- a/s2counter_core/src/main/scala/s2/util/Retry.scala
+++ b/s2counter_core/src/main/scala/s2/util/Retry.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 import scala.annotation.tailrec
diff --git a/s2counter_core/src/main/scala/s2/util/SplitBytes.scala b/s2counter_core/src/main/scala/s2/util/SplitBytes.scala
index a5ca998b..739a8388 100644
--- a/s2counter_core/src/main/scala/s2/util/SplitBytes.scala
+++ b/s2counter_core/src/main/scala/s2/util/SplitBytes.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 /**
diff --git a/s2counter_core/src/main/scala/s2/util/UnitConverter.scala b/s2counter_core/src/main/scala/s2/util/UnitConverter.scala
index fb0b0d0f..059d4659 100644
--- a/s2counter_core/src/main/scala/s2/util/UnitConverter.scala
+++ b/s2counter_core/src/main/scala/s2/util/UnitConverter.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.util
 
 /**
diff --git a/s2counter_core/src/test/resources/application.conf b/s2counter_core/src/test/resources/application.conf
index 8a791400..a1cd11b3 100644
--- a/s2counter_core/src/test/resources/application.conf
+++ b/s2counter_core/src/test/resources/application.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # App Phase
 phase=dev
 host=localhost
diff --git a/s2counter_core/src/test/resources/log4j.properties b/s2counter_core/src/test/resources/log4j.properties
old mode 100755
new mode 100644
index 4af1b0c9..afb3cef1
--- a/s2counter_core/src/test/resources/log4j.properties
+++ b/s2counter_core/src/test/resources/log4j.properties
@@ -1,3 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
 log4j.rootLogger=${root.logger}
 root.logger=WARN,console
 log4j.appender.console=org.apache.log4j.ConsoleAppender
diff --git a/s2counter_core/src/test/scala/s2/counter/core/RankingCounterSpec.scala b/s2counter_core/src/test/scala/s2/counter/core/RankingCounterSpec.scala
index ea67a2a1..ffd019ec 100644
--- a/s2counter_core/src/test/scala/s2/counter/core/RankingCounterSpec.scala
+++ b/s2counter_core/src/test/scala/s2/counter/core/RankingCounterSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.kakao.s2graph.core.{Management, Graph}
diff --git a/s2counter_core/src/test/scala/s2/models/CounterModelSpec.scala b/s2counter_core/src/test/scala/s2/models/CounterModelSpec.scala
index dff55ef3..fa24fa5a 100644
--- a/s2counter_core/src/test/scala/s2/models/CounterModelSpec.scala
+++ b/s2counter_core/src/test/scala/s2/models/CounterModelSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import com.typesafe.config.ConfigFactory
diff --git a/s2counter_core/src/test/scala/s2/models/CounterSpec.scala b/s2counter_core/src/test/scala/s2/models/CounterSpec.scala
index a03c70ea..18eb76f3 100644
--- a/s2counter_core/src/test/scala/s2/models/CounterSpec.scala
+++ b/s2counter_core/src/test/scala/s2/models/CounterSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import org.specs2.mutable.Specification
diff --git a/s2counter_loader/build.sbt b/s2counter_loader/build.sbt
index a79bc0b2..879f2c11 100644
--- a/s2counter_loader/build.sbt
+++ b/s2counter_loader/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 import sbtassembly.Plugin.AssemblyKeys._
 
 name := "s2counter-loader"
diff --git a/s2counter_loader/src/main/scala/s2/config/StreamingConfig.scala b/s2counter_loader/src/main/scala/s2/config/StreamingConfig.scala
index ba5e863f..eac280df 100644
--- a/s2counter_loader/src/main/scala/s2/config/StreamingConfig.scala
+++ b/s2counter_loader/src/main/scala/s2/config/StreamingConfig.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.config
 
 /**
diff --git a/s2counter_loader/src/main/scala/s2/counter/CounterBulkLoader.scala b/s2counter_loader/src/main/scala/s2/counter/CounterBulkLoader.scala
index 2843022e..b950b667 100644
--- a/s2counter_loader/src/main/scala/s2/counter/CounterBulkLoader.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/CounterBulkLoader.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter
 
 import com.kakao.s2graph.core.{Graph, GraphUtil}
@@ -75,4 +94,4 @@ object CounterBulkLoader extends SparkApp with WithKafka {
       CounterFunctions.updateRankingCounter(part, acc)
     }
   }
-}
\ No newline at end of file
+}
diff --git a/s2counter_loader/src/main/scala/s2/counter/EraseDailyCounter.scala b/s2counter_loader/src/main/scala/s2/counter/EraseDailyCounter.scala
index 71784fa9..278fb3db 100644
--- a/s2counter_loader/src/main/scala/s2/counter/EraseDailyCounter.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/EraseDailyCounter.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter
 
 import java.text.SimpleDateFormat
diff --git a/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlFunctions.scala b/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlFunctions.scala
index cefce65d..5daf329d 100644
--- a/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlFunctions.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlFunctions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.kakao.s2graph.core.{Edge, Graph, GraphUtil}
diff --git a/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlItem.scala b/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlItem.scala
index 1b0f3cd6..c5f072c8 100644
--- a/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlItem.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/core/CounterEtlItem.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import org.slf4j.LoggerFactory
diff --git a/s2counter_loader/src/main/scala/s2/counter/core/CounterFunctions.scala b/s2counter_loader/src/main/scala/s2/counter/core/CounterFunctions.scala
index a36b55f2..4beb980e 100644
--- a/s2counter_loader/src/main/scala/s2/counter/core/CounterFunctions.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/core/CounterFunctions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2counter_loader/src/main/scala/s2/counter/core/DimensionProps.scala b/s2counter_loader/src/main/scala/s2/counter/core/DimensionProps.scala
index 98bc750d..bc155a06 100644
--- a/s2counter_loader/src/main/scala/s2/counter/core/DimensionProps.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/core/DimensionProps.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.kakao.s2graph.core.mysqls.{Bucket, Experiment, Service}
diff --git a/s2counter_loader/src/main/scala/s2/counter/stream/EtlStreaming.scala b/s2counter_loader/src/main/scala/s2/counter/stream/EtlStreaming.scala
index 03c42b50..6ec9123e 100644
--- a/s2counter_loader/src/main/scala/s2/counter/stream/EtlStreaming.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/stream/EtlStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import com.kakao.s2graph.core.{Graph, GraphUtil}
diff --git a/s2counter_loader/src/main/scala/s2/counter/stream/ExactCounterStreaming.scala b/s2counter_loader/src/main/scala/s2/counter/stream/ExactCounterStreaming.scala
index 2b8ba215..9a2922d9 100644
--- a/s2counter_loader/src/main/scala/s2/counter/stream/ExactCounterStreaming.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/stream/ExactCounterStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import kafka.serializer.StringDecoder
diff --git a/s2counter_loader/src/main/scala/s2/counter/stream/GraphToETLStreaming.scala b/s2counter_loader/src/main/scala/s2/counter/stream/GraphToETLStreaming.scala
index 39654d34..d2de9be5 100644
--- a/s2counter_loader/src/main/scala/s2/counter/stream/GraphToETLStreaming.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/stream/GraphToETLStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2counter_loader/src/main/scala/s2/counter/stream/RankingCounterStreaming.scala b/s2counter_loader/src/main/scala/s2/counter/stream/RankingCounterStreaming.scala
index 4c0b9279..0e9e53d9 100644
--- a/s2counter_loader/src/main/scala/s2/counter/stream/RankingCounterStreaming.scala
+++ b/s2counter_loader/src/main/scala/s2/counter/stream/RankingCounterStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import kafka.serializer.StringDecoder
diff --git a/s2counter_loader/src/main/scala/s2/models/DefaultCounterModel.scala b/s2counter_loader/src/main/scala/s2/models/DefaultCounterModel.scala
index 9cbe2125..e30eb35d 100644
--- a/s2counter_loader/src/main/scala/s2/models/DefaultCounterModel.scala
+++ b/s2counter_loader/src/main/scala/s2/models/DefaultCounterModel.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.models
 
 import s2.config.S2ConfigFactory
diff --git a/s2counter_loader/src/test/resources/application.conf b/s2counter_loader/src/test/resources/application.conf
index b3c57af0..204d1c7d 100644
--- a/s2counter_loader/src/test/resources/application.conf
+++ b/s2counter_loader/src/test/resources/application.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # App Phase
 phase=dev
 host=localhost
diff --git a/s2counter_loader/src/test/resources/log4j.properties b/s2counter_loader/src/test/resources/log4j.properties
old mode 100755
new mode 100644
index ac1e66eb..b4d4b330
--- a/s2counter_loader/src/test/resources/log4j.properties
+++ b/s2counter_loader/src/test/resources/log4j.properties
@@ -1,3 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
 log4j.rootLogger=${root.logger}
 root.logger=WARN,console
 log4j.appender.console=org.apache.log4j.ConsoleAppender
diff --git a/s2counter_loader/src/test/scala/s2/counter/core/CounterEtlFunctionsSpec.scala b/s2counter_loader/src/test/scala/s2/counter/core/CounterEtlFunctionsSpec.scala
index 520b30f1..bd492bee 100644
--- a/s2counter_loader/src/test/scala/s2/counter/core/CounterEtlFunctionsSpec.scala
+++ b/s2counter_loader/src/test/scala/s2/counter/core/CounterEtlFunctionsSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import com.typesafe.config.ConfigFactory
diff --git a/s2counter_loader/src/test/scala/s2/counter/core/DimensionPropsTest.scala b/s2counter_loader/src/test/scala/s2/counter/core/DimensionPropsTest.scala
index b658d051..a8e03a6f 100644
--- a/s2counter_loader/src/test/scala/s2/counter/core/DimensionPropsTest.scala
+++ b/s2counter_loader/src/test/scala/s2/counter/core/DimensionPropsTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.core
 
 import org.scalatest.{FunSuite, Matchers}
diff --git a/s2counter_loader/src/test/scala/s2/counter/stream/ExactCounterStreamingSpec.scala b/s2counter_loader/src/test/scala/s2/counter/stream/ExactCounterStreamingSpec.scala
index 49703990..52ea0346 100644
--- a/s2counter_loader/src/test/scala/s2/counter/stream/ExactCounterStreamingSpec.scala
+++ b/s2counter_loader/src/test/scala/s2/counter/stream/ExactCounterStreamingSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import com.kakao.s2graph.core.GraphUtil
diff --git a/s2counter_loader/src/test/scala/s2/counter/stream/RankingCounterStreamingSpec.scala b/s2counter_loader/src/test/scala/s2/counter/stream/RankingCounterStreamingSpec.scala
index 434673df..30fc6368 100644
--- a/s2counter_loader/src/test/scala/s2/counter/stream/RankingCounterStreamingSpec.scala
+++ b/s2counter_loader/src/test/scala/s2/counter/stream/RankingCounterStreamingSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.counter.stream
 
 import com.kakao.s2graph.core.mysqls.Label
diff --git a/s2rest_netty/build.sbt b/s2rest_netty/build.sbt
index 666fd807..c8104827 100644
--- a/s2rest_netty/build.sbt
+++ b/s2rest_netty/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := "s2rest_netty"
 
 enablePlugins(JavaAppPackaging)
diff --git a/s2rest_netty/conf/logger.xml b/s2rest_netty/conf/logger.xml
index 2d767c2d..0fe2b69e 100644
--- a/s2rest_netty/conf/logger.xml
+++ b/s2rest_netty/conf/logger.xml
@@ -1,3 +1,23 @@
+<?xml version='1.0'?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
 <configuration>
 
     <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel"/>
diff --git a/s2rest_netty/conf/reference.conf b/s2rest_netty/conf/reference.conf
index a992e5d7..a50e7b24 100644
--- a/s2rest_netty/conf/reference.conf
+++ b/s2rest_netty/conf/reference.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # This is the main configuration file for the application.
 # ~~~~~
 
diff --git a/s2rest_netty/src/main/resources/application.conf b/s2rest_netty/src/main/resources/application.conf
deleted file mode 100644
index e69de29b..00000000
diff --git a/s2rest_netty/src/main/resources/reference.conf b/s2rest_netty/src/main/resources/reference.conf
index a992e5d7..a50e7b24 100644
--- a/s2rest_netty/src/main/resources/reference.conf
+++ b/s2rest_netty/src/main/resources/reference.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # This is the main configuration file for the application.
 # ~~~~~
 
diff --git a/s2rest_netty/src/main/scala/Server.scala b/s2rest_netty/src/main/scala/Server.scala
index 16477b1f..368e4453 100644
--- a/s2rest_netty/src/main/scala/Server.scala
+++ b/s2rest_netty/src/main/scala/Server.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.rest.netty
 
 import java.util.Map.Entry
diff --git a/s2rest_play/app/Bootstrap.scala b/s2rest_play/app/Bootstrap.scala
index 6ce3ac4d..c3679f6b 100644
--- a/s2rest_play/app/Bootstrap.scala
+++ b/s2rest_play/app/Bootstrap.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package com.kakao.s2graph.rest
 
 import java.util.concurrent.Executors
diff --git a/s2rest_play/app/actors/QueueActor.scala b/s2rest_play/app/actors/QueueActor.scala
index 74bc65da..1f49cfe9 100644
--- a/s2rest_play/app/actors/QueueActor.scala
+++ b/s2rest_play/app/actors/QueueActor.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package actors
 
 import java.util.concurrent.TimeUnit
diff --git a/s2rest_play/app/config/Config.scala b/s2rest_play/app/config/Config.scala
index 98b87c58..b3b3b918 100644
--- a/s2rest_play/app/config/Config.scala
+++ b/s2rest_play/app/config/Config.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package config
 
 import play.api.Play
diff --git a/s2rest_play/app/config/CounterConfig.scala b/s2rest_play/app/config/CounterConfig.scala
index 2569d552..26d95645 100644
--- a/s2rest_play/app/config/CounterConfig.scala
+++ b/s2rest_play/app/config/CounterConfig.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package config
 
 /**
diff --git a/s2rest_play/app/controllers/AdminController.scala b/s2rest_play/app/controllers/AdminController.scala
index bb73c409..8c832e84 100644
--- a/s2rest_play/app/controllers/AdminController.scala
+++ b/s2rest_play/app/controllers/AdminController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core._
diff --git a/s2rest_play/app/controllers/ApplicationController.scala b/s2rest_play/app/controllers/ApplicationController.scala
index 5f54edda..d6a6750b 100644
--- a/s2rest_play/app/controllers/ApplicationController.scala
+++ b/s2rest_play/app/controllers/ApplicationController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core.GraphExceptions.BadQueryException
diff --git a/s2rest_play/app/controllers/CounterController.scala b/s2rest_play/app/controllers/CounterController.scala
index c2b4dc2c..7d0b5eb7 100644
--- a/s2rest_play/app/controllers/CounterController.scala
+++ b/s2rest_play/app/controllers/CounterController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core.ExceptionHandler
diff --git a/s2rest_play/app/controllers/EdgeController.scala b/s2rest_play/app/controllers/EdgeController.scala
index a8e1a417..52eb182f 100644
--- a/s2rest_play/app/controllers/EdgeController.scala
+++ b/s2rest_play/app/controllers/EdgeController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import actors.QueueActor
diff --git a/s2rest_play/app/controllers/ExperimentController.scala b/s2rest_play/app/controllers/ExperimentController.scala
index e48b0f1a..ea21c8ac 100644
--- a/s2rest_play/app/controllers/ExperimentController.scala
+++ b/s2rest_play/app/controllers/ExperimentController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 
diff --git a/s2rest_play/app/controllers/JsonBodyParser.scala b/s2rest_play/app/controllers/JsonBodyParser.scala
index 4339eb45..a5ab11ef 100644
--- a/s2rest_play/app/controllers/JsonBodyParser.scala
+++ b/s2rest_play/app/controllers/JsonBodyParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core.utils.logger
diff --git a/s2rest_play/app/controllers/PublishController.scala b/s2rest_play/app/controllers/PublishController.scala
index b1495d5a..fdb27eeb 100644
--- a/s2rest_play/app/controllers/PublishController.scala
+++ b/s2rest_play/app/controllers/PublishController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core.ExceptionHandler
diff --git a/s2rest_play/app/controllers/QueryController.scala b/s2rest_play/app/controllers/QueryController.scala
index d1333705..b919ef6c 100644
--- a/s2rest_play/app/controllers/QueryController.scala
+++ b/s2rest_play/app/controllers/QueryController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core._
diff --git a/s2rest_play/app/controllers/TestController.scala b/s2rest_play/app/controllers/TestController.scala
index 8558ae52..74339931 100644
--- a/s2rest_play/app/controllers/TestController.scala
+++ b/s2rest_play/app/controllers/TestController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import play.api.mvc.{Action, Controller}
diff --git a/s2rest_play/app/controllers/VertexController.scala b/s2rest_play/app/controllers/VertexController.scala
index 977c2fc5..841ea1b0 100644
--- a/s2rest_play/app/controllers/VertexController.scala
+++ b/s2rest_play/app/controllers/VertexController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 
diff --git a/s2rest_play/app/models/ExactCounterItem.scala b/s2rest_play/app/models/ExactCounterItem.scala
index 244c046f..55891abf 100644
--- a/s2rest_play/app/models/ExactCounterItem.scala
+++ b/s2rest_play/app/models/ExactCounterItem.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package models
 
 import play.api.libs.json.{Json, Writes}
diff --git a/s2rest_play/app/models/RankCounterItem.scala b/s2rest_play/app/models/RankCounterItem.scala
index aaa7df74..8f204072 100644
--- a/s2rest_play/app/models/RankCounterItem.scala
+++ b/s2rest_play/app/models/RankCounterItem.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package models
 
 import play.api.libs.json.{Json, Writes}
diff --git a/s2rest_play/app/models/package.scala b/s2rest_play/app/models/package.scala
index 17fa8e19..fd8a01fd 100644
--- a/s2rest_play/app/models/package.scala
+++ b/s2rest_play/app/models/package.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 import java.text.SimpleDateFormat
 
 /**
diff --git a/s2rest_play/app/util/TestDataLoader.scala b/s2rest_play/app/util/TestDataLoader.scala
index 45a9b61e..c97feb47 100644
--- a/s2rest_play/app/util/TestDataLoader.scala
+++ b/s2rest_play/app/util/TestDataLoader.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package util
 
 import java.io.File
diff --git a/s2rest_play/build.sbt b/s2rest_play/build.sbt
index 6e0f0bd4..27922f00 100644
--- a/s2rest_play/build.sbt
+++ b/s2rest_play/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := "s2rest_play"
 
 scalacOptions in Test ++= Seq("-Yrangepos")
diff --git a/s2rest_play/conf/application.conf b/s2rest_play/conf/application.conf
deleted file mode 100644
index e69de29b..00000000
diff --git a/s2rest_play/conf/logger.xml b/s2rest_play/conf/logger.xml
index 2d767c2d..0fe2b69e 100644
--- a/s2rest_play/conf/logger.xml
+++ b/s2rest_play/conf/logger.xml
@@ -1,3 +1,23 @@
+<?xml version='1.0'?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
 <configuration>
 
     <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel"/>
diff --git a/s2rest_play/conf/reference.conf b/s2rest_play/conf/reference.conf
index 6e76847a..78856826 100644
--- a/s2rest_play/conf/reference.conf
+++ b/s2rest_play/conf/reference.conf
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # This is the main configuration file for the application.
 # ~~~~~
 
diff --git a/s2rest_play/conf/routes b/s2rest_play/conf/routes
index 90838c8a..cc53eae6 100644
--- a/s2rest_play/conf/routes
+++ b/s2rest_play/conf/routes
@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 # Routes
 # This file defines all application routes (Higher priority routes first)
 # ~~~~
diff --git a/s2rest_play/conf/test.conf b/s2rest_play/conf/test.conf
index c51baef8..2325dd98 100644
--- a/s2rest_play/conf/test.conf
+++ b/s2rest_play/conf/test.conf
@@ -1,2 +1,21 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
 max.retry.number=10000
 hbase.fail.prob=0.1
diff --git a/s2rest_play/test/benchmark/BenchmarkCommon.scala b/s2rest_play/test/benchmark/BenchmarkCommon.scala
index 48f84c88..d9ab8077 100644
--- a/s2rest_play/test/benchmark/BenchmarkCommon.scala
+++ b/s2rest_play/test/benchmark/BenchmarkCommon.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package benchmark
 
 import org.specs2.mutable.Specification
diff --git a/s2rest_play/test/benchmark/GraphUtilSpec.scala b/s2rest_play/test/benchmark/GraphUtilSpec.scala
index b5ce93aa..10ba4b59 100644
--- a/s2rest_play/test/benchmark/GraphUtilSpec.scala
+++ b/s2rest_play/test/benchmark/GraphUtilSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package benchmark
 
 import com.kakao.s2graph.core.{Management, GraphUtil}
diff --git a/s2rest_play/test/benchmark/JsonBenchmarkSpec.scala b/s2rest_play/test/benchmark/JsonBenchmarkSpec.scala
index a387ba54..75ca495e 100644
--- a/s2rest_play/test/benchmark/JsonBenchmarkSpec.scala
+++ b/s2rest_play/test/benchmark/JsonBenchmarkSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package benchmark
 
 import play.api.libs.json.JsNumber
diff --git a/s2rest_play/test/benchmark/OrderingUtilBenchmarkSpec.scala b/s2rest_play/test/benchmark/OrderingUtilBenchmarkSpec.scala
index d2d3624d..33a6a9b2 100644
--- a/s2rest_play/test/benchmark/OrderingUtilBenchmarkSpec.scala
+++ b/s2rest_play/test/benchmark/OrderingUtilBenchmarkSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package benchmark
 
 import com.kakao.s2graph.core.OrderingUtil._
diff --git a/s2rest_play/test/benchmark/SamplingBenchmarkSpec.scala b/s2rest_play/test/benchmark/SamplingBenchmarkSpec.scala
index 0c27a2a7..f3427ac1 100644
--- a/s2rest_play/test/benchmark/SamplingBenchmarkSpec.scala
+++ b/s2rest_play/test/benchmark/SamplingBenchmarkSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package benchmark
 import play.api.test.{FakeApplication, PlaySpecification, WithApplication}
 import scala.annotation.tailrec
diff --git a/s2rest_play/test/controllers/PostProcessSpec.scala b/s2rest_play/test/controllers/PostProcessSpec.scala
index cea132ac..f0aa1aa0 100644
--- a/s2rest_play/test/controllers/PostProcessSpec.scala
+++ b/s2rest_play/test/controllers/PostProcessSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package controllers
 
 import com.kakao.s2graph.core.{OrderingUtil, SeqMultiOrdering}
diff --git a/script/test.sh b/script/test.sh
index ed08307e..eba39345 100644
--- a/script/test.sh
+++ b/script/test.sh
@@ -1,4 +1,20 @@
 #!/usr/bin/env bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 # create service.
 curl -XPOST localhost:9000/graphs/createService -H 'Content-Type: Application/json' -d '
 {"serviceName": "s2graph", "compressionAlgorithm" : "gz"}
diff --git a/spark/build.sbt b/spark/build.sbt
index c0daeb51..2c2a389a 100644
--- a/spark/build.sbt
+++ b/spark/build.sbt
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 name := "s2spark"
 
 scalacOptions ++= Seq("-deprecation", "-feature")
diff --git a/spark/src/main/scala/kafka/KafkaHelper.scala b/spark/src/main/scala/kafka/KafkaHelper.scala
index af96ef56..0609f588 100644
--- a/spark/src/main/scala/kafka/KafkaHelper.scala
+++ b/spark/src/main/scala/kafka/KafkaHelper.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package kafka
 
 import java.net.InetAddress
diff --git a/spark/src/main/scala/org/apache/spark/streaming/kafka/KafkaRDDFunctions.scala b/spark/src/main/scala/org/apache/spark/streaming/kafka/KafkaRDDFunctions.scala
index 56be5437..884a963c 100644
--- a/spark/src/main/scala/org/apache/spark/streaming/kafka/KafkaRDDFunctions.scala
+++ b/spark/src/main/scala/org/apache/spark/streaming/kafka/KafkaRDDFunctions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package org.apache.spark.streaming.kafka
 
 import org.apache.spark.Logging
diff --git a/spark/src/main/scala/org/apache/spark/streaming/kafka/StreamHelper.scala b/spark/src/main/scala/org/apache/spark/streaming/kafka/StreamHelper.scala
index 782f87f1..607ee96e 100644
--- a/spark/src/main/scala/org/apache/spark/streaming/kafka/StreamHelper.scala
+++ b/spark/src/main/scala/org/apache/spark/streaming/kafka/StreamHelper.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package org.apache.spark.streaming.kafka
 
 import kafka.KafkaHelper
diff --git a/spark/src/main/scala/s2/config/S2ConfigFactory.scala b/spark/src/main/scala/s2/config/S2ConfigFactory.scala
index 7666cdc7..59dd7330 100644
--- a/spark/src/main/scala/s2/config/S2ConfigFactory.scala
+++ b/spark/src/main/scala/s2/config/S2ConfigFactory.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.config
 
 import com.typesafe.config.{Config, ConfigFactory}
diff --git a/spark/src/main/scala/s2/spark/HashMapParam.scala b/spark/src/main/scala/s2/spark/HashMapParam.scala
index a84c687f..2a696ea3 100644
--- a/spark/src/main/scala/s2/spark/HashMapParam.scala
+++ b/spark/src/main/scala/s2/spark/HashMapParam.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import org.apache.spark.serializer.JavaSerializer
@@ -52,4 +71,4 @@ object HashMapParam {
   def apply[K, V](op: (V, V) => V): HashMapParam[K, V] = {
     new HashMapParam[K, V](op)
   }
-}
\ No newline at end of file
+}
diff --git a/spark/src/main/scala/s2/spark/RDDUtil.scala b/spark/src/main/scala/s2/spark/RDDUtil.scala
index c5a371aa..86416e9c 100644
--- a/spark/src/main/scala/s2/spark/RDDUtil.scala
+++ b/spark/src/main/scala/s2/spark/RDDUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import org.apache.spark.rdd.RDD
diff --git a/spark/src/main/scala/s2/spark/SparkApp.scala b/spark/src/main/scala/s2/spark/SparkApp.scala
index e27b7ecd..bb96641a 100644
--- a/spark/src/main/scala/s2/spark/SparkApp.scala
+++ b/spark/src/main/scala/s2/spark/SparkApp.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import kafka.serializer.StringDecoder
diff --git a/spark/src/main/scala/s2/spark/SubscriberListener.scala b/spark/src/main/scala/s2/spark/SubscriberListener.scala
index 9e156a7c..a3b201b2 100644
--- a/spark/src/main/scala/s2/spark/SubscriberListener.scala
+++ b/spark/src/main/scala/s2/spark/SubscriberListener.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import org.apache.spark.Logging
diff --git a/spark/src/main/scala/s2/spark/WithKafka.scala b/spark/src/main/scala/s2/spark/WithKafka.scala
index 9bd59445..7a23ccd6 100644
--- a/spark/src/main/scala/s2/spark/WithKafka.scala
+++ b/spark/src/main/scala/s2/spark/WithKafka.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import java.util.Properties
@@ -66,4 +85,4 @@ trait WithKafka {
 
     groupId
   }
-}
\ No newline at end of file
+}
diff --git a/spark/src/test/scala/s2/spark/SparkAppTest.scala b/spark/src/test/scala/s2/spark/SparkAppTest.scala
index 6bf2482b..2511e1a0 100644
--- a/spark/src/test/scala/s2/spark/SparkAppTest.scala
+++ b/spark/src/test/scala/s2/spark/SparkAppTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import org.scalatest.{FunSuite, Matchers}
diff --git a/spark/src/test/scala/s2/spark/TestStreamingSpec.scala b/spark/src/test/scala/s2/spark/TestStreamingSpec.scala
index bf15618c..d7b9e95f 100644
--- a/spark/src/test/scala/s2/spark/TestStreamingSpec.scala
+++ b/spark/src/test/scala/s2/spark/TestStreamingSpec.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
 package s2.spark
 
 import org.apache.spark.streaming.{Seconds, StreamingContext}
diff --git a/test.sh b/test.sh
index deadae43..ecb64251 100644
--- a/test.sh
+++ b/test.sh
@@ -1,3 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
 curl -XPOST localhost:9000/graphs/edges/insert -H 'Content-Type: Application/json' -d '
 [
 {"timestamp": 1447493110829, "from": 7007, "to": "700710007abc", "label": "s2graph_label_test_2", "props": {"time": 10}}