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1   /*
2    * $Id$
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.processor;
12  
13  import org.mule.api.MuleEvent;
14  import org.mule.api.MuleException;
15  import org.mule.api.processor.MessageProcessor;
16  import org.mule.util.ObjectUtils;
17  
18  
19  /**
20   * Implementation of {@link MessageProcessor} that dynamically chooses and uses
21   * another {@link MessageProcessor}
22   */
23  public abstract class AbstractDynamicMessageProcessor implements MessageProcessor
24  {
25  
26      public MuleEvent process(MuleEvent event) throws MuleException
27      {
28          return resolveMessageProcessor(event).process(event);
29      }
30  
31      /**
32       * Determines which MessageProcessor should be used. Implementations may choose
33       * to use a message property, configure this
34       * 
35       * @param event
36       * @return
37       */
38      protected abstract MessageProcessor resolveMessageProcessor(MuleEvent event) throws MuleException;
39  
40      @Override
41      public String toString()
42      {
43          return ObjectUtils.toString(this);
44      }
45  }