add etcd dependency (#8)

* add etcd dependency
* add EtcdClient
* add BspTestSuite
* improve exception messages
* get value from put event
* fix a unit test setting bug
* unuse static import
* define const ENCODING

computer-core/pom.xml

@@ -16,5 +16,9 @@
             <groupId>com.baidu.hugegraph</groupId>
             <artifactId>hugegraph-common</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.etcd</groupId>
+            <artifactId>jetcd-core</artifactId>
+        </dependency>
     </dependencies>
 </project>

computer-core/src/main/resources/log4j2.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration status="error">
+    <appenders>
+        <Console name="console" target="SYSTEM_OUT">
+            <ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
+            <PatternLayout pattern="%-d{yyyy-MM-dd HH:mm:ss} %-5r [%t] [%-5p] %c %x - %m%n"/>
+        </Console>
+
+        <RollingFile name="file" fileName="logs/hugegraph-computer.log"
+                     filePattern="logs/$${date:yyyy-MM}/hugegraph-computer-%d{yyyy-MM-dd}-%i.log">
+            <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY"/>
+            <PatternLayout pattern="%-d{yyyy-MM-dd HH:mm:ss} %-5r [%t] [%-5p] %c %x - %m%n"/>
+            <SizeBasedTriggeringPolicy size="100MB"/>
+        </RollingFile>
+    </appenders>
+    <loggers>
+        <root level="INFO">
+            <appender-ref ref="console"/>
+            <appender-ref ref="file"/>
+        </root>
+        <logger name="com.baidu.hugegraph" level="INFO" additivity="false">
+            <appender-ref ref="console"/>
+            <appender-ref ref="file"/>
+        </logger>
+    </loggers>
+</configuration>

computer-dist/src/assembly/travis/install-env.sh

@@ -4,4 +4,5 @@ set -ev
 
 TRAVIS_DIR=`dirname $0`
 
+sh ${TRAVIS_DIR}/start-etcd.sh
 echo "Installing requirments..."

computer-dist/src/assembly/travis/start-etcd.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ev
+
+TRAVIS_DIR=`dirname $0`
+echo "Starting etcd..."
+chmod a+x ./computer-dist/src/main/resources/etcd
+./computer-dist/src/main/resources/etcd &

computer-test/pom.xml

@@ -43,6 +43,12 @@
             <artifactId>computer-k8s</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -62,7 +68,7 @@
                                 ${basedir}/target/classes/
                             </testClassesDirectory>
                             <includes>
-                                <include>**/CoreTestSuite.java</include>
+                                <include>**/UnitTestSuite.java</include>
                             </includes>
                         </configuration>
                     </execution>

computer-test/src/main/java/com/baidu/hugegraph/computer/core/UnitTestSuite.java

@@ -23,7 +23,9 @@
 import org.junit.runners.Suite;
 import org.slf4j.Logger;
 
+import com.baidu.hugegraph.computer.core.bsp.BspTestSuite;
 import com.baidu.hugegraph.computer.core.common.CommonTestSuite;
+import com.baidu.hugegraph.computer.core.common.ExceptionTest;
 import com.baidu.hugegraph.computer.core.graph.GraphTestSuite;
 import com.baidu.hugegraph.computer.core.io.IOTestSuite;
 import com.baidu.hugegraph.util.Log;
@@ -33,6 +35,8 @@
     CommonTestSuite.class,
     GraphTestSuite.class,
     IOTestSuite.class,
+    ExceptionTest.class,
+    BspTestSuite.class
 })
 public class UnitTestSuite {
 

computer-test/src/main/java/com/baidu/hugegraph/computer/core/bsp/BspTestSuite.java

@@ -0,0 +1,30 @@
+/*
+ *  Copyright 2017 HugeGraph Authors
+ *
+ *  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.baidu.hugegraph.computer.core.bsp;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+
+@RunWith(Suite.class)
+@Suite.SuiteClasses({
+    EtcdClientTest.class
+})
+public class BspTestSuite {
+}