    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_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    }