| SerialDestination.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.kernel.messaging;
24
25 import java.util.Set;
26 import java.util.concurrent.ThreadPoolExecutor;
27
28 /**
29 * <a href="SerialDestination.java.html"><b><i>View Source</i></b></a>
30 *
31 * <p>
32 * Destination that delivers a message to a list of message listeners one at a
33 * time.
34 * </p>
35 *
36 * @author Michael C. Han
37 *
38 */
39 public class SerialDestination extends ArrayDispatcherDestination {
40
41 public SerialDestination(String name) {
42 super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
43 }
44
45 protected void dispatch(
46 final Set<MessageListener> listeners, final Message message) {
47
48 ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
49
50 Runnable runnable = new Runnable() {
51
52 public void run() {
53 for (MessageListener listener : listeners) {
54 listener.receive(message);
55 }
56 }
57
58 };
59
60 threadPoolExecutor.execute(runnable);
61 }
62
63 private static final int _WORKERS_CORE_SIZE = 1;
64
65 private static final int _WORKERS_MAX_SIZE = 1;
66
67 }