| SerialDestination.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or modify it under
5 * the terms of the GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1 of the License, or (at your option)
7 * any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 * details.
13 */
14
15 package com.liferay.portal.kernel.messaging;
16
17 import com.liferay.portal.kernel.util.ThreadLocalRegistry;
18
19 import java.util.Set;
20 import java.util.concurrent.ThreadPoolExecutor;
21
22 /**
23 * <a href="SerialDestination.java.html"><b><i>View Source</i></b></a>
24 *
25 * <p>
26 * Destination that delivers a message to a list of message listeners one at a
27 * time.
28 * </p>
29 *
30 * @author Michael C. Han
31 */
32 public class SerialDestination extends BaseDestination {
33
34 public SerialDestination() {
35 }
36
37 /**
38 * @deprecated
39 */
40 public SerialDestination(String name) {
41 super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
42 }
43
44 protected void dispatch(
45 final Set<MessageListener> messageListeners, final Message message) {
46
47 ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
48
49 Runnable runnable = new Runnable() {
50
51 public void run() {
52 try {
53 for (MessageListener messageListener : messageListeners) {
54 messageListener.receive(message);
55 }
56 }
57 finally {
58 ThreadLocalRegistry.resetThreadLocals();
59 }
60 }
61
62 };
63
64 threadPoolExecutor.execute(runnable);
65 }
66
67 private static final int _WORKERS_CORE_SIZE = 1;
68
69 private static final int _WORKERS_MAX_SIZE = 1;
70
71 }