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Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.

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/**
 * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.messaging;

import com.liferay.portal.kernel.cache.Lifecycle;
import com.liferay.portal.kernel.cache.ThreadLocalCacheManager;
import com.liferay.portal.kernel.concurrent.ThreadPoolExecutor;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.CentralizedThreadLocal;

import java.util.Set;

/**
 * 
 * Destination that delivers a message to a list of message listeners in
 * parallel.
 * 
 *
 * @author Michael C. Han
 */
public class ParallelDestination extends BaseAsyncDestination {

	public ParallelDestination() {
	}

	/**
	 * @deprecated As of 6.1.0
	 */
	public ParallelDestination(String name) {
		super(name);
	}

	/**
	 * @deprecated As of 6.1.0
	 */
	public ParallelDestination(
		String name, int workersCoreSize, int workersMaxSize) {

		super(name, workersCoreSize, workersMaxSize);
	}

	@Override
	protected void dispatch(
		Set messageListeners, final Message message) {

		ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();

		for (final MessageListener messageListener : messageListeners) {
			Runnable runnable = new MessageRunnable(message) {

				@Override
				public void run() {
					try {
						populateThreadLocalsFromMessage(message);

						messageListener.receive(message);
					}
					catch (MessageListenerException mle) {
						_log.error("Unable to process message " + message, mle);
					}
					finally {
						ThreadLocalCacheManager.clearAll(Lifecycle.REQUEST);

						CentralizedThreadLocal.clearShortLivedThreadLocals();
					}
				}

			};

			threadPoolExecutor.execute(runnable);
		}
	}

	private static Log _log = LogFactoryUtil.getLog(ParallelDestination.class);

}