audiofilefilter.java

YOYOPlayer MP3播放器 java+JMF实现

/*
 * Entagged Audio Tag library
 * Copyright (c) 2003-2005 Rapha�l Slinckx <[e-mail]>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *  
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package com.hadeslee.audiotag.audio;

import com.hadeslee.audiotag.audio.generic.Utils;
import java.io.FileFilter;
import java.io.File;

/**
 *	<p>This is a simple FileFilter that will only allow the file supported by this library.</p>
 *	<p>It will also accept directories. An additionnal condition is that file must be readable (read permission) and are not hidden (dot files, or hidden files)</p>
 *
 *@author	Raphael Slinckx
 *@version	$Id: AudioFileFilter.java,v 1.1 2007/08/07 16:05:45 paultaylor Exp $
 *@since	v0.01
 */
public class AudioFileFilter implements FileFilter {
	/**
	 *	<p>Check whether the given file meet the required conditions (supported by the library OR directory).
	 *	The File must also be readable and not hidden.</p>
	 *
	 *@param	f	The file to test
	 *@return	a boolean indicating if the file is accepted or not
	 */
	public boolean accept( File f ) {
		if(f.isHidden() || !f.canRead())
			return false;
		
		if(f.isDirectory())
			return true;
		
		String ext = Utils.getExtension(f);
        if(SupportedFileFormat.valueOf(ext.toUpperCase())!=null)
        {
			return true;
        }
		return false;
	}
}