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 com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.messaging.sender.MessageSender;
28  import com.liferay.portal.kernel.messaging.sender.SingleDestinationMessageSender;
29  
30  /**
31   * <a href="BaseMessageListener.java.html"><b><i>View Source</i></b></a>
32   *
33   * @author Michael C. Han
34   */
35  public abstract class BaseMessageListener implements MessageListener {
36  
37      public BaseMessageListener() {
38      }
39  
40      /**
41       * @deprecated
42       */
43      public BaseMessageListener(
44          SingleDestinationMessageSender statusSender,
45          MessageSender responseSender) {
46  
47          _statusSender = statusSender;
48          _responseSender = responseSender;
49      }
50  
51      public void receive(Message message) {
52          MessageStatus messageStatus = new MessageStatus();
53  
54          messageStatus.startTimer();
55  
56          try {
57              doReceive(message, messageStatus);
58          }
59          catch (Exception e) {
60              _log.error(
61                  "Unable to process request " + message.getDestinationName(), e);
62  
63              messageStatus.setException(e);
64          }
65          finally {
66              messageStatus.stopTimer();
67  
68              _statusSender.send(messageStatus);
69          }
70      }
71  
72      public void setResponseSender(MessageSender responseSender) {
73          _responseSender = responseSender;
74      }
75  
76      public void setStatusSender(SingleDestinationMessageSender statusSender) {
77          _statusSender = statusSender;
78      }
79  
80      protected abstract void doReceive(
81              Message message, MessageStatus messageStatus)
82          throws Exception;
83  
84      protected MessageSender getResponseSender() {
85          return _responseSender;
86      }
87  
88      private static Log _log = LogFactoryUtil.getLog(BaseMessageListener.class);
89  
90      private MessageSender _responseSender;
91      private SingleDestinationMessageSender _statusSender;
92  
93  }