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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,21 +1,21 @@ | ||
| /* | ||
| * Copyright (c) 2010 Yahoo! Inc. All rights reserved. | ||
| * | ||
| * Licensed 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. See accompanying LICENSE file. | ||
| */ | ||
| dependencies { | ||
| compile( libraries.json ) | ||
| compile( libraries.zk ) | ||
| } | ||
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| /* | ||
| * Copyright (c) 2010 Yahoo! Inc. All rights reserved. | ||
| * | ||
| * Licensed 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. See accompanying LICENSE file. | ||
| */ | ||
| dependencies { | ||
| compile( libraries.json ) | ||
| compile( libraries.zk ) | ||
| } | ||
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|
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@@ -17,3 +17,8 @@ | |
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| # Backup files | ||
| *~ | ||
| *.pid | ||
| *.log | ||
| *.mon | ||
| /tmp | ||
| /bin | ||
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54 changes: 54 additions & 0 deletions
54
s4-core/src/main/java/io/s4/dispatcher/partitioner/LoopbackPartitioner.java
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| package io.s4.dispatcher.partitioner; | ||
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| import io.s4.emitter.CommLayerEmitter; | ||
| import io.s4.emitter.EventEmitter; | ||
| import io.s4.listener.EventListener; | ||
| import io.s4.processor.PEContainer; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| /** | ||
| * A partitioner that assigns events to the current partition, as given by the comm layer. | ||
| * | ||
| */ | ||
| public class LoopbackPartitioner implements Partitioner, VariableKeyPartitioner { | ||
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| CommLayerEmitter emitter; | ||
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| @Override | ||
| public List<CompoundKeyInfo> partition(String streamName, | ||
| List<List<String>> compoundKeyNames, Object event, | ||
| int partitionCount) { | ||
| List<CompoundKeyInfo> partitionInfoList = new ArrayList<CompoundKeyInfo>(); | ||
| CompoundKeyInfo partitionInfo = new CompoundKeyInfo(); | ||
| StringBuilder compoundKeyBuilder = new StringBuilder(); | ||
| // This partitioning ignores the values of the keyed attributes; | ||
| // it partitions to the current partition id of the pe container | ||
| partitionInfo.setPartitionId(emitter.getListener().getId()); | ||
| for (List<String> keyNames : compoundKeyNames) { | ||
| for (String keyName : keyNames) { | ||
| compoundKeyBuilder.append(keyName); | ||
| } | ||
| } | ||
| partitionInfo.setCompoundKey(compoundKeyBuilder.toString()); | ||
| partitionInfoList.add(partitionInfo); | ||
| return partitionInfoList; | ||
| } | ||
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| @Override | ||
| public List<CompoundKeyInfo> partition(String streamName, Object event, | ||
| int partitionCount) { | ||
| return partition(streamName, new ArrayList<List<String>>(0), event, | ||
| partitionCount); | ||
| } | ||
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| /** | ||
| * A reference on the emitter allows getting the current partition id from the comm layer | ||
| * @param emitter comm layer emitter | ||
| */ | ||
| public void setEventEmitter(CommLayerEmitter emitter) { | ||
| this.emitter = emitter; | ||
| } | ||
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|
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| } |
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