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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2009 Eric Lafortune (eric (at) graphics.cornell.edu)
      6  *
      7  * This program is free software; you can redistribute it and/or modify it
      8  * under the terms of the GNU General Public License as published by the Free
      9  * Software Foundation; either version 2 of the License, or (at your option)
     10  * any later version.
     11  *
     12  * This program is distributed in the hope that it will be useful, but WITHOUT
     13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
     15  * more details.
     16  *
     17  * You should have received a copy of the GNU General Public License along
     18  * with this program; if not, write to the Free Software Foundation, Inc.,
     19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
     20  */
     21 package proguard.gui;
     22 
     23 import javax.swing.filechooser.FileFilter;
     24 import java.io.File;
     25 
     26 
     27 /**
     28  * This <code>FileFilter</code> accepts files that end in one of the given
     29  * extensions.
     30  *
     31  * @author Eric Lafortune
     32  */
     33 final class ExtensionFileFilter extends FileFilter
     34 {
     35     private final String   description;
     36     private final String[] extensions;
     37 
     38 
     39     /**
     40      * Creates a new ExtensionFileFilter.
     41      * @param description a description of the filter.
     42      * @param extensions  an array of acceptable extensions.
     43      */
     44     public ExtensionFileFilter(String description, String[] extensions)
     45     {
     46         this.description = description;
     47         this.extensions  = extensions;
     48     }
     49 
     50 
     51     // Implemntations for FileFilter
     52 
     53     public String getDescription()
     54     {
     55         return description;
     56     }
     57 
     58 
     59     public boolean accept(File file)
     60     {
     61         if (file.isDirectory())
     62         {
     63             return true;
     64         }
     65 
     66         String fileName = file.getName().toLowerCase();
     67 
     68         for (int index = 0; index < extensions.length; index++)
     69         {
     70             if (fileName.endsWith(extensions[index]))
     71             {
     72                 return true;
     73             }
     74         }
     75 
     76         return false;
     77     }
     78 }
     79