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The source code// $Id: SuffixFilter.java,v 1.5 2004/08/25 18:51:47 mvw Exp $ // Copyright (c) 2003 The Regents of the University of California. All // Rights Reserved. Permission to use, copy, modify, and distribute this // software and its documentation without fee, and without a written // agreement is hereby granted, provided that the above copyright notice // and this paragraph appear in all copies. This software program and // documentation are copyrighted by The Regents of the University of // California. The software program and documentation are supplied "AS // IS", without any accompanying services from The Regents. The Regents // does not warrant that the operation of the program will be // uninterrupted or error-free. The end-user understands that the program // was developed for research purposes and is advised not to rely // exclusively on the program for any reason. IN NO EVENT SHALL THE // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, // UPDATES, ENHANCEMENTS, OR MODIFICATIONS. package org.argouml.util; import java.io.File; import javax.swing.filechooser.FileFilter; /** * This class handles file extensions. * */ public class SuffixFilter extends FileFilter { //////////////////////////////////////////////////////////////// // instance varaibles private final String suffix; private final String desc; //////////////////////////////////////////////////////////////// // constructor /** * The constructor. * * @param s the suffix string * @param d the file type description */ public SuffixFilter(String s, String d) { suffix = s; desc = d; } //////////////////////////////////////////////////////////////// // FileFilter API /** * @see javax.swing.filechooser.FileFilter#accept(java.io.File) */ public boolean accept(File f) { if (f == null) return false; if (f.isDirectory()) return true; String extension = getExtension(f); if (suffix.equalsIgnoreCase(extension)) return true; return false; } /** * @param f the file to get the extension from * @return the extension string (without the dot) */ public static String getExtension(File f) { if (f == null) return null; return getExtension(f.getName()); } /** * @param filename the name of the file to get the extension from * @return the extension string (without the dot) */ public static String getExtension(String filename) { int i = filename.lastIndexOf('.'); if (i > 0 && i < filename.length() - 1) { return filename.substring(i + 1).toLowerCase(); } return null; } /** * @see javax.swing.filechooser.FileFilter#getDescription() */ public String getDescription() { return desc + " (*." + suffix + ")"; } /** * @return Returns the _suffix. */ public String getSuffix() { return suffix; } } /* end class SuffixFilter */ |
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