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1   /*
2    * $Id: StringToObjectArray.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.simple;
12  
13  import org.mule.api.transformer.TransformerException;
14  import org.mule.transformer.AbstractTransformer;
15  import org.mule.transformer.types.DataTypeFactory;
16  import org.mule.util.IOUtils;
17  import org.mule.util.StringUtils;
18  
19  import java.io.InputStream;
20  
21  /**
22   * <code>StringToObjectArray</code> converts a String into an object array. This
23   * is useful in certain situations, as when a string needs to be converted into
24   * an Object[] in order to be passed to a SOAP service. The input String is parsed
25   * into the array based on a configurable delimiter - default is a space.
26   */
27  
28  public class StringToObjectArray extends AbstractTransformer
29  {
30      private String delimiter = null;
31      private static final String DEFAULT_DELIMITER = " ";
32  
33      public StringToObjectArray()
34      {
35          registerSourceType(DataTypeFactory.STRING);
36          registerSourceType(DataTypeFactory.BYTE_ARRAY);
37          registerSourceType(DataTypeFactory.INPUT_STREAM);
38          setReturnDataType(DataTypeFactory.create(Object[].class));
39      }
40  
41      @Override
42      public Object doTransform(Object src, String encoding) throws TransformerException
43      {
44          String in;
45  
46          if (src instanceof byte[])
47          {
48              in = new String((byte[])src);
49          }
50          else if (src instanceof InputStream)
51          {
52              InputStream input = (InputStream) src;
53              try
54              {
55                  in = IOUtils.toString(input);
56              }
57              finally
58              {
59                  IOUtils.closeQuietly(input);
60              }
61          }
62          else
63          {
64              in = (String)src;
65          }
66  
67          String[] out = StringUtils.splitAndTrim(in, getDelimiter());
68          return out;
69      }
70  
71      /**
72       * @return the delimiter
73       */
74      public String getDelimiter()
75      {
76          if (delimiter == null)
77          {
78              return DEFAULT_DELIMITER;
79          }
80          else
81          {
82              return delimiter;
83          }
84      }
85  
86      /**
87       * @param delimiter the delimiter
88       */
89      public void setDelimiter(String delimiter)
90      {
91          this.delimiter = delimiter;
92      }
93          
94  }