/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

package com.sun.star.xml.security.uno;

import java.io.File;
import javax.swing.filechooser.FileFilter;

/*
 * this class is used as a file filter for the XML file
 * (*.xml) and the batch file (*.txt).
 */
class XMLFileFilter extends FileFilter
{
	public static String getExtension(File f) 
	{
		String ext = null;
		String s = f.getName();
		int i = s.lastIndexOf('.');
		
		if (i > 0 &&  i < s.length() - 1) {
			ext = s.substring(i+1).toLowerCase();
		}
		
		return ext;
	}
	
	public boolean accept(File f) 
	{
		boolean rc = false;
		
		if (f.isDirectory()) 
		{
			rc = true;
		}
		else
		{
			String extension = getExtension(f);
			if (extension != null) 
			{
				if (extension.equals("xml") || extension.equals("txt"))
				{
					rc = true;
				}
			}
		}
		
		return rc;
	}
	
	public String getDescription()
	{
		return "XML and batch files (.xml,.txt)";
	}
}
