| /* |
| * Copyright 2013 International Business Machines Corp. |
| * |
| * See the NOTICE file distributed with this work for additional information |
| * regarding copyright ownership. 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. |
| */ |
| package org.apache.batchee.container.services.executor; |
| |
| import org.apache.batchee.container.exception.BatchContainerServiceException; |
| import org.apache.batchee.container.util.BatchWorkUnit; |
| import org.apache.batchee.spi.BatchThreadPoolService; |
| |
| import javax.batch.operations.JobOperator; |
| import javax.batch.runtime.BatchRuntime; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Properties; |
| import java.util.Set; |
| import java.util.concurrent.ExecutorService; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import static org.apache.batchee.container.util.ClassLoaderAwareHandler.runnableLoaderAware; |
| |
| public abstract class AbstractThreadPoolService implements BatchThreadPoolService { |
| private final static Logger LOGGER = Logger.getLogger(AbstractThreadPoolService.class.getName()); |
| |
| protected ExecutorService executorService; |
| |
| volatile boolean shutdown = false; |
| |
| private Set<BatchWorkUnit> runningBatchWorkUnits = Collections.synchronizedSet(new HashSet<BatchWorkUnit>()); |
| |
| protected abstract ExecutorService newExecutorService(Properties batchConfig); |
| |
| @Override |
| public void init(final Properties batchConfig) throws BatchContainerServiceException { |
| executorService = newExecutorService(batchConfig); |
| } |
| |
| @Override |
| public void shutdown() throws BatchContainerServiceException { |
| this.shutdown = true; |
| if (!runningBatchWorkUnits.isEmpty()) { |
| JobOperator jobOperator = BatchRuntime.getJobOperator(); |
| for (BatchWorkUnit batchWorkUnit : runningBatchWorkUnits) { |
| try { |
| long executionId = batchWorkUnit.getJobExecutionImpl().getExecutionId(); |
| if (executionId >= 0) { |
| jobOperator.stop(executionId); |
| } |
| } catch (Exception e) { |
| LOGGER.log(Level.SEVERE, "Failure while shutting down execution", e); |
| } |
| } |
| } |
| |
| executorService.shutdownNow(); |
| executorService = null; |
| } |
| |
| @Override |
| public void executeTask(final Runnable work, final Object config) { |
| if (shutdown) { |
| throw new IllegalStateException("Refuse to start Batch Task due to shutdown being in progress!"); |
| } |
| executorService.execute(runnableLoaderAware(new ActiveWorkTracker(work))); |
| } |
| |
| @Override |
| public String toString() { |
| return getClass().getName(); |
| } |
| |
| class ActiveWorkTracker implements Runnable { |
| private final Runnable work; |
| |
| ActiveWorkTracker(Runnable work) { |
| this.work = work; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| if (work instanceof BatchWorkUnit) { |
| runningBatchWorkUnits.add((BatchWorkUnit) work); |
| } |
| work.run(); |
| } finally { |
| if (work instanceof BatchWorkUnit) { |
| runningBatchWorkUnits.remove(work); |
| } |
| } |
| } |
| } |
| |
| } |