1
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
36 public abstract class BaseMessageListener implements MessageListener {
37
38 public BaseMessageListener(
39 SingleDestinationMessageSender statusSender,
40 MessageSender responseSender) {
41
42 _statusSender = statusSender;
43 _responseSender = responseSender;
44 }
45
46 public void receive(Message message) {
47 MessageStatus messageStatus = new MessageStatus();
48
49 messageStatus.startTimer();
50
51 try {
52 doReceive(message, messageStatus);
53 }
54 catch (Exception e) {
55 _log.error(
56 "Unable to process request " + message.getDestination(), e);
57
58 messageStatus.setException(e);
59 }
60 finally {
61 messageStatus.stopTimer();
62
63 _statusSender.send(messageStatus);
64 }
65 }
66
67 protected abstract void doReceive(
68 Message message, MessageStatus messageStatus)
69 throws Exception;
70
71 protected MessageSender getResponseSender() {
72 return _responseSender;
73 }
74
75 private static Log _log = LogFactoryUtil.getLog(BaseMessageListener.class);
76
77 private MessageSender _responseSender;
78 private SingleDestinationMessageSender _statusSender;
79
80 }