| BaseMessageListener.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 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 SingleDestinationMessageSender statusSender,
39 MessageSender responseSender) {
40
41 _statusSender = statusSender;
42 _responseSender = responseSender;
43 }
44
45 public void receive(Message message) {
46 MessageStatus messageStatus = new MessageStatus();
47
48 messageStatus.startTimer();
49
50 try {
51 doReceive(message, messageStatus);
52 }
53 catch (Exception e) {
54 _log.error(
55 "Unable to process request " + message.getDestinationName(), e);
56
57 messageStatus.setException(e);
58 }
59 finally {
60 messageStatus.stopTimer();
61
62 _statusSender.send(messageStatus);
63 }
64 }
65
66 protected abstract void doReceive(
67 Message message, MessageStatus messageStatus)
68 throws Exception;
69
70 protected MessageSender getResponseSender() {
71 return _responseSender;
72 }
73
74 private static Log _log = LogFactoryUtil.getLog(BaseMessageListener.class);
75
76 private MessageSender _responseSender;
77 private SingleDestinationMessageSender _statusSender;
78
79 }