exofilter.java

xwiki 源码

/**
 * ===================================================================
 *
 * Copyright (c) 2003,2004 Ludovic Dubost, All rights reserved.
 *
 * This program 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
 * of the License, or (at your option) any later version.
 *
 * This program 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, published at 
 * http://www.gnu.org/copyleft/lesser.html or in lesser.txt in the
 * root folder of this distribution.

 * Created by
 * User: Ludovic Dubost
 * Date: 28 juil. 2004
 * Time: 12:17:29
 */
package com.xpn.xwiki.util;

import javax.servlet.*;
import java.io.IOException;

import org.exoplatform.container.PortalContainer;
import org.exoplatform.container.RootContainer;
import org.exoplatform.services.database.HibernateService;

public class ExoFilter implements Filter {

    public static final String WSRP_CONTAINER = "portal";
    private HibernateService hservice_;
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
                         FilterChain filterChain) throws IOException, ServletException
    {
        PortalContainer pcontainer = RootContainer.getInstance().getPortalContainer(WSRP_CONTAINER);
        PortalContainer.setInstance(pcontainer);
        try {
            filterChain.doFilter(servletRequest, servletResponse);
        }
        finally {
            getHibernateService(pcontainer).closeSession() ;
        }
    }

    public void destroy() {
    }

    private HibernateService getHibernateService(PortalContainer pcontainer){
      if(hservice_ == null){
        hservice_ = (HibernateService) pcontainer.getComponentInstanceOfType(HibernateService.class) ;
      }
      return hservice_;
    }
  }