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1   /*
2    * $Id: ExceptionToString.java 19250 2010-08-30 16:53:14Z 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.example.hello;
12  
13  import org.mule.api.transformer.TransformerException;
14  import org.mule.transformer.AbstractTransformer;
15  import org.mule.transformer.types.DataTypeFactory;
16  
17  /**
18   * <code>ExceptionToString</code> converts an exception to a String,
19   * returning the exception's <code>getMessage()</code> result.
20   */
21  public class ExceptionToString extends AbstractTransformer
22  {
23  
24      public ExceptionToString()
25      {
26          super();
27          this.registerSourceType(DataTypeFactory.create(Exception.class));
28          this.setReturnDataType(DataTypeFactory.STRING);
29      }
30  
31      @Override
32      public Object doTransform(Object src, String outputEncoding) throws TransformerException
33      {
34          return ((Exception) src).getMessage();
35      }
36  
37  }