| /** |
| * 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.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.apex.engine.api.plugin.DAGExecutionEvent; |
| import org.apache.apex.engine.api.plugin.DAGExecutionPlugin; |
| |
| import static org.apache.apex.engine.api.plugin.DAGExecutionEvent.Type.COMMIT_EVENT; |
| import static org.apache.apex.engine.api.plugin.DAGExecutionEvent.Type.HEARTBEAT_EVENT; |
| import static org.apache.apex.engine.api.plugin.DAGExecutionEvent.Type.STRAM_EVENT; |
| |
| public class DebugPlugin implements DAGExecutionPlugin<DAGExecutionPlugin.Context> |
| { |
| private static final Logger logger = LoggerFactory.getLogger(DebugPlugin.class); |
| |
| private int eventCount = 0; |
| private int heartbeatCount = 0; |
| private int commitCount = 0; |
| CountDownLatch latch = new CountDownLatch(3); |
| |
| @Override |
| public void setup(DAGExecutionPlugin.Context context) |
| { |
| context.register(STRAM_EVENT, new EventHandler<DAGExecutionEvent.StramExecutionEvent>() |
| { |
| @Override |
| public void handle(DAGExecutionEvent.StramExecutionEvent event) |
| { |
| logger.debug("Stram Event {}", event.getStramEvent()); |
| eventCount++; |
| latch.countDown(); |
| } |
| }); |
| |
| context.register(HEARTBEAT_EVENT, new EventHandler<DAGExecutionEvent.HeartbeatExecutionEvent>() |
| { |
| @Override |
| public void handle(DAGExecutionEvent.HeartbeatExecutionEvent event) |
| { |
| logger.debug("Heartbeat {}", event.getHeartbeat()); |
| heartbeatCount++; |
| latch.countDown(); |
| } |
| }); |
| |
| context.register(COMMIT_EVENT, new EventHandler<DAGExecutionEvent.CommitExecutionEvent>() |
| { |
| @Override |
| public void handle(DAGExecutionEvent.CommitExecutionEvent event) |
| { |
| logger.debug("Commit window id {}", event.getCommitWindow()); |
| commitCount++; |
| latch.countDown(); |
| } |
| }); |
| } |
| |
| @Override |
| public void teardown() |
| { |
| |
| } |
| |
| public int getEventCount() |
| { |
| return eventCount; |
| } |
| |
| public int getHeartbeatCount() |
| { |
| return heartbeatCount; |
| } |
| |
| public int getCommitCount() |
| { |
| return commitCount; |
| } |
| |
| public void waitForEventDelivery(long timeout) throws InterruptedException |
| { |
| latch.await(timeout, TimeUnit.SECONDS); |
| } |
| } |