Java tutorial
/* * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. * * 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. * * Contributors: * bstefanescu */ package org.nuxeo.ecm.automation.client.jaxrs.spi; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; import java.util.concurrent.ThreadFactory; import java.util.concurrent.TimeUnit; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> */ public abstract class AsyncAutomationClient extends AbstractAutomationClient { private static final Log log = LogFactory.getLog(AsyncAutomationClient.class); protected ExecutorService async; /** * Timeout in milliseconds for the wait of the asynchronous thread pool termination. Default value: 2 seconds. */ protected long asyncAwaitTerminationTimeout = 2000; /** * Instantiates a new asynchronous automation client with the default timeout for the wait of the asynchronous * thread pool termination: 2 seconds. */ public AsyncAutomationClient(String url) { this(url, Executors.newCachedThreadPool(new ThreadFactory() { public Thread newThread(Runnable r) { return new Thread("AutomationAsyncExecutor"); } })); } /** * Instantiates a new asynchronous automation client with the given asynchronous executor and the default timeout * for the wait of the asynchronous thread pool termination: 2 seconds. */ public AsyncAutomationClient(String url, ExecutorService executor) { super(url); async = executor; } /** * Instantiates a new asynchronous automation client with the given timeout in milliseconds for the wait of the * asynchronous thread pool termination. * * @since 5.7 */ public AsyncAutomationClient(String url, long asyncAwaitTerminationTimeout) { this(url); this.asyncAwaitTerminationTimeout = asyncAwaitTerminationTimeout; } /** * Instantiates a new asynchronous automation client with the given asynchronous executor and the given timeout in * milliseconds for the wait of the asynchronous thread pool termination. * * @since 5.7 */ public AsyncAutomationClient(String url, ExecutorService executor, long asyncAwaitTerminationTimeout) { this(url, executor); this.asyncAwaitTerminationTimeout = asyncAwaitTerminationTimeout; } @Override public void asyncExec(Runnable runnable) { async.execute(runnable); } @Override public synchronized void shutdown() { try { async.awaitTermination(asyncAwaitTerminationTimeout, TimeUnit.MILLISECONDS); } catch (InterruptedException e) { log.error(e, e); } super.shutdown(); async = null; } }