View Javadoc

1   /*
2    * $Id: OutboundResponsePropertiesMessageProcessor.java 19191 2010-08-25 21:05:23Z tcarlson $
3    * --------------------------------------------------------------------------------------
4    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
5    *
6    * The software in this package is published under the terms of the CPAL v1.0
7    * license, a copy of which has been included with this distribution in the
8    * LICENSE.txt file.
9    */
10  
11  package org.mule.endpoint.outbound;
12  
13  import org.mule.api.MuleEvent;
14  import org.mule.api.MuleException;
15  import org.mule.api.endpoint.OutboundEndpoint;
16  import org.mule.processor.AbstractInterceptingMessageProcessor;
17  
18  import java.util.List;
19  
20  /**
21   * Propagates properties from request message to response message as defined by
22   * {@link OutboundEndpoint#getResponseProperties()}.
23   * <p>
24   * //TODO This can became a standard MessageProcessor in the response chain if/when
25   * event has a (immutable) reference to request message.
26   */
27  public class OutboundResponsePropertiesMessageProcessor extends AbstractInterceptingMessageProcessor
28  {
29  
30      private OutboundEndpoint endpoint;
31  
32      public OutboundResponsePropertiesMessageProcessor(OutboundEndpoint endpoint)
33      {
34          this.endpoint = endpoint;
35      }
36  
37      public MuleEvent process(MuleEvent event) throws MuleException
38      {
39          MuleEvent responseEvent = processNext(event);
40  
41          if (responseEvent != null)
42          {
43              // Properties which should be carried over from the request message
44              // to the response message
45              List<String> responseProperties = endpoint.getResponseProperties();
46              for (String propertyName : responseProperties)
47              {
48                  Object propertyValue = event.getMessage().getOutboundProperty(propertyName);
49                  if (propertyValue != null)
50                  {
51                      responseEvent.getMessage().setOutboundProperty(propertyName, propertyValue);
52                  }
53              }
54          }
55          return responseEvent;
56      }
57  }