/**
 * 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 org.apache.hadoop.gateway.filter;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * This filter will look for the JSESSIONID cookie.  If found it will load and verify the associated session state.
 * It will then establish the Subject from the session as the current Subject.  On the way out it will schedule
 * async replication of the session if it is dirty.
 */
//TODO: Implement the session filter.
public class SessionFilter extends AbstractGatewayFilter {

  @Override
  public void doFilter( HttpServletRequest request, HttpServletResponse response, FilterChain chain ) throws IOException, ServletException {
    chain.doFilter( request, response );
  }

}
