001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/framework/util/ConvenienceFileFilter.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036 package org.deegree.framework.util;
037
038 import java.io.File;
039 import java.io.FilenameFilter;
040 import java.util.ArrayList;
041 import java.util.List;
042
043 /**
044 * Class to be used with
045 *
046 * @see java.io.File for reading all file/directory names starting at a given root directory
047 *
048 * @version $Revision: 18195 $
049 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
050 * @author last edited by: $Author: mschneider $
051 *
052 * @version 1.0. $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
053 *
054 * @since 2.0
055 */
056 public class ConvenienceFileFilter implements FilenameFilter {
057
058 private List<String> extensions = null;
059
060 private boolean returnDirsAsTrue = false;
061
062 /**
063 *
064 * @param extensions
065 * list of considered file extensions (e.g. tif, BMP, Gif ..) The is is not case
066 * sensitive; use '*' for returning all files
067 * @param returnDirsAsTrue
068 * if set too true the method also return directory names
069 * @see #accept(java.io.File, String) will return 'true' if the passed
070 * @see File is a directory
071 */
072 public ConvenienceFileFilter( List<String> extensions, boolean returnDirsAsTrue ) {
073 this.extensions = new ArrayList<String>();
074 for ( int i = 0; i < extensions.size(); i++ ) {
075 this.extensions.add( extensions.get( i ).toUpperCase() );
076 }
077 this.returnDirsAsTrue = returnDirsAsTrue;
078 }
079
080 /**
081 *
082 * @param returnDirsAsTrue
083 * if set too true the method also return directory names
084 * @param extensions
085 * list of considered file extensions (e.g. tif, BMP, Gif ..) The is is not case
086 * sensitive; use '*' for returning all files
087 */
088 public ConvenienceFileFilter( boolean returnDirsAsTrue, String... extensions ) {
089 this.extensions = new ArrayList<String>( extensions.length );
090 for ( int i = 0; i < extensions.length; i++ ) {
091 this.extensions.add( extensions[i].toUpperCase() );
092 }
093 this.returnDirsAsTrue = returnDirsAsTrue;
094 }
095
096 /**
097 * @return *.* (all files)
098 */
099 public String getDescription() {
100 return "*.*";
101 }
102
103 /*
104 * (non-Javadoc)
105 *
106 * @see java.io.FilenameFilter#accept(java.io.File, java.lang.String)
107 */
108 public boolean accept( java.io.File file, String name ) {
109 int pos = name.lastIndexOf( "." );
110 String ext = name.substring( pos + 1 ).toUpperCase();
111 String s = file.getAbsolutePath() + '/' + name;
112 File tmp = new File( s );
113 if ( file.isDirectory() ) {
114 if ( tmp.isDirectory() && returnDirsAsTrue ) {
115 return true;
116 }
117 }
118 return ( extensions.contains( ext ) || ( extensions.contains( "*" ) ) && !tmp.isDirectory() );
119 }
120
121 }