1   /**
2    * Copyright (c) 2000-2008 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.concurrent.ThreadPoolExecutor;
26  
27  /**
28   * <a href="ParallelDestination.java.html"><b><i>View Source</i></b></a>
29   *
30   * <p>
31   * Destination that delivers a message to a list of message listeners in
32   * parallel.
33   * </p>
34   *
35   * @author Michael C. Han
36   *
37   */
38  public class ParallelDestination extends ArrayDispatcherDestination {
39  
40      public ParallelDestination(String name) {
41          super(name);
42      }
43  
44      public ParallelDestination(
45          String name, int workersCoreSize, int workersMaxSize) {
46  
47          super(name, workersCoreSize, workersMaxSize);
48      }
49  
50      protected void dispatch(
51          MessageListener[] listeners, final Object message) {
52  
53          ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
54  
55          for (final MessageListener listener : listeners) {
56              Runnable runnable = new Runnable() {
57  
58                  public void run() {
59                      listener.receive(message);
60                  }
61  
62              };
63  
64              threadPoolExecutor.execute(runnable);
65          }
66      }
67  
68      protected void dispatch(
69          MessageListener[] listeners, final String message) {
70  
71          ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
72  
73          for (final MessageListener listener : listeners) {
74              Runnable runnable = new Runnable() {
75  
76                  public void run() {
77                      listener.receive(message);
78                  }
79  
80              };
81  
82              threadPoolExecutor.execute(runnable);
83          }
84      }
85  
86  }