/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the 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)";
	}
}