| /** |
| * 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.apex.engine.plugin; |
| |
| import java.util.concurrent.locks.Condition; |
| import java.util.concurrent.locks.Lock; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| import org.apache.apex.engine.api.plugin.DAGExecutionPlugin; |
| import org.apache.apex.engine.api.plugin.DAGExecutionPluginContext; |
| import org.apache.apex.engine.api.plugin.DAGExecutionPluginContext.Handler; |
| |
| import com.datatorrent.stram.api.StramEvent; |
| import com.datatorrent.stram.api.StreamingContainerUmbilicalProtocol; |
| |
| import static org.apache.apex.engine.api.plugin.DAGExecutionPluginContext.COMMIT_EVENT; |
| import static org.apache.apex.engine.api.plugin.DAGExecutionPluginContext.HEARTBEAT; |
| import static org.apache.apex.engine.api.plugin.DAGExecutionPluginContext.STRAM_EVENT; |
| |
| public class DebugPlugin implements DAGExecutionPlugin |
| { |
| private int eventCount = 0; |
| private int heartbeatCount = 0; |
| private int commitCount = 0; |
| private final Lock lock = new ReentrantLock(); |
| final Condition events = lock.newCondition(); |
| |
| @Override |
| public void setup(DAGExecutionPluginContext context) |
| { |
| context.register(STRAM_EVENT, new Handler<StramEvent>() |
| { |
| @Override |
| public void handle(StramEvent stramEvent) |
| { |
| lock(); |
| eventCount++; |
| events.signal(); |
| unlock(); |
| } |
| }); |
| |
| context.register(HEARTBEAT, new Handler<StreamingContainerUmbilicalProtocol.ContainerHeartbeat>() |
| { |
| @Override |
| public void handle(StreamingContainerUmbilicalProtocol.ContainerHeartbeat heartbeat) |
| { |
| lock(); |
| heartbeatCount++; |
| events.signal(); |
| unlock(); |
| } |
| }); |
| |
| context.register(COMMIT_EVENT, new Handler<Long>() |
| { |
| @Override |
| public void handle(Long aLong) |
| { |
| lock(); |
| commitCount++; |
| events.signal(); |
| unlock(); |
| } |
| }); |
| } |
| |
| @Override |
| public void teardown() |
| { |
| |
| } |
| |
| public int getEventCount() |
| { |
| return eventCount; |
| } |
| |
| public int getHeartbeatCount() |
| { |
| return heartbeatCount; |
| } |
| |
| public int getCommitCount() |
| { |
| return commitCount; |
| } |
| |
| void lock() |
| { |
| this.lock.lock(); |
| } |
| |
| void unlock() |
| { |
| this.lock.unlock(); |
| } |
| } |