/*
* 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.services.security.web;
import org.exoplatform.container.ExoContainer;
import org.exoplatform.container.ExoContainerContext;
import org.exoplatform.container.PortalContainer;
import org.exoplatform.container.RootContainer;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.security.ConversationRegistry;
import org.exoplatform.services.security.ConversationState;
import org.exoplatform.services.security.StateKey;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
/**
* @author <a href="mailto:andrew00x@gmail.com">Andrey Parfonov</a>
* @version $Id: $
*/
public class ConversationStateListener implements HttpSessionListener
{
/**
* Logger.
*/
protected static final Log LOG = ExoLogger.getLogger("exo.core.component.security.core.ConversationStateListener");
/**
* {@inheritDoc}
*/
public void sessionCreated(HttpSessionEvent event)
{
// nothing to do here
}
/**
* Remove {@link ConversationState}. {@inheritDoc}
*/
public void sessionDestroyed(HttpSessionEvent event)
{
HttpSession httpSession = event.getSession();
StateKey stateKey = new HttpSessionStateKey(httpSession);
ConversationRegistry conversationRegistry =
(ConversationRegistry)getContainer(httpSession.getServletContext()).getComponentInstanceOfType(
ConversationRegistry.class);
ConversationState conversationState = conversationRegistry.unregister(stateKey);
if (conversationState != null)
if (LOG.isDebugEnabled())
LOG.debug("Remove conversation state " + httpSession.getId());
}
/**
* @param sctx {@link ServletContext}
* @return actual ExoContainer instance
*/
protected ExoContainer getContainer(ServletContext sctx)
{
ExoContainer container = ExoContainerContext.getCurrentContainer();
if (container instanceof RootContainer)
{
// The top container is a RootContainer, thus we assume that we are in a portal mode
container = PortalContainer.getCurrentInstance(sctx);
if (container == null)
{
container = ExoContainerContext.getTopContainer();
}
}
// The container is a PortalContainer or a StandaloneContainer
return container;
}
}