FilesystemBasedCommonsIo.java

/**
 * This file is part of Waarp Project.
 * 
 * Copyright 2009, Frederic Bregier, and individual contributors by the @author tags. See the
 * COPYRIGHT.txt in the distribution for a full listing of individual contributors.
 * 
 * All Waarp Project 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 3 of
 * the License, or (at your option) any later version.
 * 
 * Waarp 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 Waarp . If not, see
 * <http://www.gnu.org/licenses/>.
 */
package org.waarp.common.file.filesystembased.specific;

import java.io.FileFilter;
import java.io.IOException;

import org.apache.commons.io.FileSystemUtils;
import org.apache.commons.io.filefilter.WildcardFileFilter;

/**
 * This class enables to not set a dependencies on Apache Commons IO if wanted, but loosing
 * freespace and wildcard support.
 * 
 * @author Frederic Bregier
 * 
 */
public class FilesystemBasedCommonsIo {

    /**
     * 
     * @param pathname
     * @return the free space of the given pathname
     */
    public static long freeSpace(String pathname) {
        try {
            return FileSystemUtils.freeSpaceKb(pathname) << 10;
        } catch (IOException e) {
            return -1;
        }
    }

    /**
     * 
     * @param dir
     * @return The associated FileFilter
     */
    public static FileFilter getWildcardFileFilter(String dir) {
        return new WildcardFileFilter(dir);
    }
}