FileUtils.java Source code

Introduction

Here is the source code for FileUtils.java

Source

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
/*
 * This file is part of the Caliph and Emir project: http://www.SemanticMetadata.net.
 *
 * Caliph & Emir is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Caliph & Emir is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Caliph & Emir; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Copyright statement:
 * --------------------
 * (c) 2002-2007 by Mathias Lux (mathias@juggle.at)
 * http://www.juggle.at, http://www.SemanticMetadata.net
 */

/**
 * This file is part of the Caliph and Emir project: http://www.SemanticMetadata.net
 * <br>Date: 04.02.2006
 * <br>Time: 09:44:49
 *
 * @author Mathias Lux, mathias@juggle.at
 */
public class FileUtils {
    /**
     * Returns all jpg images from a directory in an array.
     *
     * @param directory                 the directory to start with
     * @param descendIntoSubDirectories should we include sub directories?
     * @return an ArrayList<String> containing all the files or nul if none are found..
     * @throws IOException
     */
    public static ArrayList<String> getAllImages(File directory, boolean descendIntoSubDirectories)
            throws IOException {
        ArrayList<String> resultList = new ArrayList<String>(256);
        File[] f = directory.listFiles();
        for (File file : f) {
            if (file != null && file.getName().toLowerCase().endsWith(".jpg")
                    && !file.getName().startsWith("tn_")) {
                resultList.add(file.getCanonicalPath());
            }
            if (descendIntoSubDirectories && file.isDirectory()) {
                ArrayList<String> tmp = getAllImages(file, true);
                if (tmp != null) {
                    resultList.addAll(tmp);
                }
            }
        }
        if (resultList.size() > 0)
            return resultList;
        else
            return null;
    }

}