ExtensionFileFilter


1   /**
2    * Copyright (c) 2006, www.pdfbox.org
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions are met:
7    *
8    * 1. Redistributions of source code must retain the above copyright notice,
9    *    this list of conditions and the following disclaimer.
10   * 2. Redistributions in binary form must reproduce the above copyright notice,
11   *    this list of conditions and the following disclaimer in the documentation
12   *    and/or other materials provided with the distribution.
13   * 3. Neither the name of pdfbox; nor the names of its
14   *    contributors may be used to endorse or promote products derived from this
15   *    software without specific prior written permission.
16   *
17   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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21   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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26   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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31  package org.pdfbox.util;
32  
33  import java.io.File  ;
34  import javax.swing.filechooser.FileFilter  ;
35  
36  
37  /**
38   * A FileFilter that will only accept files of a certain extension.
39   * 
40   * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
41   * @version $Revision: 1.2 $
42   */
43  public class ExtensionFileFilter extends FileFilter  
44  {
45      private String  [] extensions = null;
46      private String   desc;
47      
48      /**
49       * Constructor.
50       * 
51       * @param ext A list of filename extensions, ie new String[] { "PDF"}.
52       * @param description A description of the files.
53       */
54      public ExtensionFileFilter( String  [] ext, String   description )
55      {
56          extensions = ext;
57          desc = description;
58      }
59  
60      /**
61       * {@inheritDoc}
62       */
63      public boolean accept(File   pathname)
64      {
65          boolean acceptable = false;
66          String   name = pathname.getName().toUpperCase();
67          for( int i=0; !acceptable && i<extensions.length; i++ )
68          {
69              if( name.endsWith( extensions[i].toUpperCase() ) )
70              {
71                  acceptable = true;
72              }
73          }
74          return acceptable;
75      }
76      
77      /**
78       * {@inheritDoc}
79       */
80      public String   getDescription()
81      {
82          return desc;
83      }
84  }
85
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