/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * The Apereo Foundation 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 org.unitime.timetable.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

/**
 * @author Tomas Muller, Zuzana Mullerova
 */
public class EncodingFilter implements Filter {
	private String iEncoding;

	/**
	* @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
	*/
	public void init(FilterConfig fc) throws ServletException {
		iEncoding = fc.getInitParameter("encoding");
	}

	/**
	* @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)
	*/
	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
		req.setCharacterEncoding(iEncoding);
		resp.setCharacterEncoding(iEncoding);
		chain.doFilter(req, resp);
	}

	/**
	* @see javax.servlet.Filter#destroy()
	*/
	public void destroy() {
	}
}