1
22
23 package com.liferay.portal.kernel.messaging;
24
25
32 public class ObjectResponseMessageListener implements MessageListener {
33
34 public ObjectResponseMessageListener(
35 Destination destination, Destination responseDestination,
36 String responseId, long timeout) {
37
38 _destination = destination;
39 _responseDestination = responseDestination;
40 _responseId = responseId;
41 _timeout = timeout;
42 }
43
44 public synchronized Object send(Message message)
45 throws MessageBusException {
46
47 message.setResponseDestination(_responseDestination.getName());
48 message.setResponseId(_responseId);
49
50 _destination.send(message);
51
52 try {
53 wait(_timeout);
54 }
55 catch (InterruptedException ie) {
56 throw new MessageBusException(
57 "Unable to receive response for request", ie);
58 }
59
60 if (_responseValue == null) {
61 throw new MessageBusException(
62 "No reply received for request: " + message);
63 }
64
65 return _responseValue;
66 }
67
68 public synchronized void receive(Object message) {
69 receive((Message)message);
70 }
71
72 public void receive(String message) {
73 throw new UnsupportedOperationException();
74 }
75
76 protected void receive(Message message) {
77 if (message.getResponseId().equals(_responseId)) {
78 _responseValue = message.getResponseValue();
79
80 notify();
81 }
82 }
83
84 private Destination _destination;
85 private Destination _responseDestination;
86 private String _responseId;
87 private long _timeout;
88 private Object _responseValue;
89
90 }