/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.web.filter;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
/**
* This interface defines a Filter that cans be added to the {@link ExtensibleFilter}
*
* Created by The eXo Platform SAS Author : Nicolas Filotto nicolas.filotto@exoplatform.com 25 sept. 2009
*/
public interface Filter {
/**
* The <code>doFilter</code> method of the Filter is called by the {@link ExtensibleFilter} each time a request/response
* pair is passed through the chain due to a client request for a resource at the end of the chain.
*/
void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException;
}