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.cluster.messaging;
16  
17  import com.liferay.portal.kernel.cluster.Address;
18  import com.liferay.portal.kernel.cluster.ClusterLinkUtil;
19  import com.liferay.portal.kernel.cluster.Priority;
20  import com.liferay.portal.kernel.log.Log;
21  import com.liferay.portal.kernel.log.LogFactoryUtil;
22  import com.liferay.portal.kernel.messaging.Message;
23  import com.liferay.portal.kernel.messaging.MessageListener;
24  
25  /**
26   * <a href="ClusterBridgeMessageListener.java.html"><b><i>View Source</i></b>
27   * </a>
28   *
29   * @author Shuyang Zhou
30   */
31  public class ClusterBridgeMessageListener implements MessageListener {
32  
33      public void receive(Message message) {
34  
35          // Prevent circular message sending
36  
37          if (ClusterLinkUtil.isForwardMessage(message)) {
38              return;
39          }
40  
41          Address address = ClusterLinkUtil.getAddress(message);
42  
43          if (address == null) {
44              if (_log.isInfoEnabled()) {
45                  _log.info("Bridging cluster link multicast message " + message);
46              }
47  
48              ClusterLinkUtil.sendMulticastMessage(message, _priority);
49          }
50          else {
51              if (_log.isInfoEnabled()) {
52                  _log.info(
53                      "Bridging cluster link unicast message " + message +
54                          " to " + address);
55              }
56  
57              ClusterLinkUtil.sendUnicastMessage(address, message, _priority);
58          }
59      }
60  
61      public void setPriority(Priority priority) {
62          _priority = priority;
63      }
64  
65      private static Log _log = LogFactoryUtil.getLog(
66          ClusterBridgeMessageListener.class);
67  
68      private Priority _priority;
69  
70  }