Coverage Report - org.mule.transformer.AbstractMessageAwareTransformer
 
Classes in this File Line Coverage Branch Coverage Complexity
AbstractMessageAwareTransformer
38%
5/13
42%
5/12
3
 
 1  
 /*
 2  
  * $Id: AbstractMessageAwareTransformer.java 11343 2008-03-13 10:58:26Z tcarlson $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.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.transformer;
 12  
 
 13  
 import org.mule.DefaultMuleMessage;
 14  
 import org.mule.MuleServer;
 15  
 import org.mule.RequestContext;
 16  
 import org.mule.api.MuleEventContext;
 17  
 import org.mule.api.MuleMessage;
 18  
 import org.mule.api.transformer.TransformerException;
 19  
 import org.mule.config.i18n.CoreMessages;
 20  
 
 21  
 /**
 22  
  * <code>AbstractMessageAwareTransformer</code> is a transformer that has a reference
 23  
  * to the current message. This message can be used obtains properties associated
 24  
  * with the current message useful to the transform. Note that when part of a
 25  
  * transform chain, the Message payload reflects the pre-transform message state,
 26  
  * unless there is no current event for this thread, then the message will be a new
 27  
  * DefaultMuleMessage with the src as its payload. Transformers should always work on the
 28  
  * src object not the message payload.
 29  
  *
 30  
  * @see org.mule.api.MuleMessage
 31  
  * @see org.mule.DefaultMuleMessage
 32  
  */
 33  
 
 34  30
 public abstract class AbstractMessageAwareTransformer extends AbstractTransformer
 35  
 {
 36  
 
 37  
     public boolean isSourceTypeSupported(Class aClass, boolean exactMatch)
 38  
     {
 39  
         //TODO RM* This is a bit of hack since we could just register MuleMessage as a supportedType, but this has some
 40  
         //funny behaviour in certain ObjectToXml transformers
 41  72
         return (super.isSourceTypeSupported(aClass, exactMatch) || MuleMessage.class.isAssignableFrom(aClass)); 
 42  
     }
 43  
 
 44  
     public final Object doTransform(Object src, String encoding) throws TransformerException
 45  
     {
 46  
         MuleMessage message;
 47  18
         if(src instanceof MuleMessage)
 48  
         {
 49  18
             message = (MuleMessage)src;
 50  
         }
 51  0
         else if (MuleServer.getMuleContext().getConfiguration().isAutoWrapMessageAwareTransform())
 52  
         {
 53  0
             message = new DefaultMuleMessage(src);
 54  
         }
 55  
         else
 56  
         {
 57  0
             MuleEventContext event = RequestContext.getEventContext();
 58  0
             if (event == null)
 59  
             {
 60  0
                 throw new TransformerException(CoreMessages.noCurrentEventForTransformer(), this);
 61  
             }
 62  0
             message = event.getMessage();
 63  0
             if(!message.getPayload().equals(src))
 64  
             {
 65  0
                 throw new IllegalStateException("Transform payload does not match current MuleEventContext payload");
 66  
             }
 67  
         }
 68  18
         return transform(message, encoding);
 69  
     }
 70  
 
 71  
     public abstract Object transform(MuleMessage message, String outputEncoding)
 72  
         throws TransformerException;
 73  
 
 74  
 }