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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.example.errorhandler;
8   
9   import org.mule.api.transformer.TransformerException;
10  import org.mule.transformer.AbstractTransformer;
11  import org.mule.transformer.types.DataTypeFactory;
12  
13  /**
14   * The <code>ErrorMessageToException</code> transformer extracts and returns
15   * the exception encapsulated by the ErrorMessage message payload.
16   */
17  public class ErrorMessageToException extends AbstractTransformer
18  {
19  
20      public ErrorMessageToException()
21      {
22          registerSourceType(DataTypeFactory.create(ErrorMessage.class));
23      }
24  
25      @Override
26      public Object doTransform(Object src, String encoding) throws TransformerException
27      {
28          try
29          {
30              return ((ErrorMessage)src).getException().toException();
31          }
32          catch (InstantiationException e)
33          {
34              throw new TransformerException(this, e);
35          }
36      }
37  
38  }