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.sender;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.messaging.Message;
28  import com.liferay.portal.kernel.messaging.MessageBus;
29  import com.liferay.portal.kernel.messaging.MessageBusException;
30  import com.liferay.portal.kernel.uuid.PortalUUID;
31  
32  /**
33   * <a href="DefaultSynchronousMessageSender.java.html"><b><i>View Source</i>
34   * </b></a>
35   *
36   * @author Michael C. Han
37   *
38   */
39  public class DefaultSynchronousMessageSender
40      implements SynchronousMessageSender {
41  
42      public DefaultSynchronousMessageSender(
43          MessageBus messageBus, PortalUUID portalUUID, long timeout) {
44  
45          _messageBus = messageBus;
46          _portalUUID = portalUUID;
47          _timeout = timeout;
48      }
49  
50      public Object sendMessage(String destination, Message message)
51          throws MessageBusException {
52  
53          return sendMessage(destination, message, _timeout);
54      }
55  
56      public Object sendMessage(String destination, Message message, long timeout)
57          throws MessageBusException {
58  
59          message.setDestination(destination);
60  
61          String responseDestination = message.getResponseDestination();
62  
63          if (!_messageBus.hasDestination(responseDestination)) {
64              if (_log.isDebugEnabled()) {
65                  _log.debug(
66                      "Response destination " + responseDestination +
67                          " is not configured");
68              }
69  
70              return null;
71          }
72  
73          String responseId = _portalUUID.generate();
74  
75          message.setResponseId(responseId);
76  
77          SynchronousMessageListener synchronousMessageListener =
78              new SynchronousMessageListener(_messageBus, message, timeout);
79  
80          return synchronousMessageListener.send();
81      }
82  
83      private static Log _log =
84          LogFactoryUtil.getLog(DefaultSynchronousMessageSender.class);
85  
86      private MessageBus _messageBus;
87      private PortalUUID _portalUUID;
88      private long _timeout;
89  
90  }