| SerialDestination.java |
1 /**
2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3 *
4 * The contents of this file are subject to the terms of the Liferay Enterprise
5 * Subscription License ("License"). You may not use this file except in
6 * compliance with the License. You can obtain a copy of the License by
7 * contacting Liferay, Inc. See the License for the specific language governing
8 * permissions and limitations under the License, including but not limited to
9 * distribution rights of the Software.
10 *
11 *
12 *
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 super();
36
37 setWorkersCoreSize(_WORKERS_CORE_SIZE);
38 setWorkersMaxSize(_WORKERS_MAX_SIZE);
39 }
40
41 /**
42 * @deprecated
43 */
44 public SerialDestination(String name) {
45 super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
46 }
47
48 protected void dispatch(
49 final Set<MessageListener> messageListeners, final Message message) {
50
51 ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
52
53 Runnable runnable = new MessageRunnable(message) {
54
55 public void run() {
56 try {
57 for (MessageListener messageListener : messageListeners) {
58 messageListener.receive(message);
59 }
60 }
61 finally {
62 ThreadLocalRegistry.resetThreadLocals();
63 }
64 }
65
66 };
67
68 threadPoolExecutor.execute(runnable);
69 }
70
71 private static final int _WORKERS_CORE_SIZE = 1;
72
73 private static final int _WORKERS_MAX_SIZE = 1;
74
75 }