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1   /*
2    * $Id: AbstractDynamicMessageProcessor.java 20813 2010-12-21 11:37:48Z dirk.olmes $
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   * Implementation of {@link MessageProcessor} that dynamically chooses and uses
20   * another {@link MessageProcessor}
21   */
22  public abstract class AbstractDynamicMessageProcessor implements MessageProcessor
23  {
24      public MuleEvent process(MuleEvent event) throws MuleException
25      {
26          return resolveMessageProcessor(event).process(event);
27      }
28  
29      /**
30       * Determines which MessageProcessor should be used. Implementations may choose
31       * to use a message property, configure this
32       */
33      protected abstract MessageProcessor resolveMessageProcessor(MuleEvent event) throws MuleException;
34  
35      @Override
36      public String toString()
37      {
38          return ObjectUtils.toString(this);
39      }
40  }