View Javadoc

1   /*
2    * $Id: XmlEntityDecoder.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.transformer.codec;
12  
13  import org.mule.api.transformer.TransformerException;
14  import org.mule.config.i18n.CoreMessages;
15  import org.mule.transformer.AbstractTransformer;
16  import org.mule.transformer.types.DataTypeFactory;
17  import org.mule.util.IOUtils;
18  import org.mule.util.XMLEntityCodec;
19  
20  import java.io.InputStream;
21  
22  /**
23   * Decodes a String or byte[] containing XML entities
24   */
25  public class XmlEntityDecoder extends AbstractTransformer
26  {
27  
28      public XmlEntityDecoder()
29      {
30          registerSourceType(DataTypeFactory.STRING);
31          registerSourceType(DataTypeFactory.BYTE_ARRAY);
32          registerSourceType(DataTypeFactory.INPUT_STREAM);
33          setReturnDataType(DataTypeFactory.STRING);
34      }
35  
36      @Override
37      public Object doTransform(Object src, String encoding) throws TransformerException
38      {
39          try
40          {
41              String data;
42  
43              if (src instanceof byte[])
44              {
45                  data = new String((byte[]) src, encoding);
46              }
47              else if (src instanceof InputStream)
48              {
49                  data = IOUtils.toString((InputStream)src);
50              }
51              else
52              {
53                  data = (String) src;
54              }
55  
56              return XMLEntityCodec.decodeString(data);
57          }
58          catch (Exception ex)
59          {
60              throw new TransformerException(
61                  CoreMessages.transformFailed(src.getClass().getName(), "XML"),
62                  this, ex);
63          }
64      }
65  
66  }