/**
* Licensed to Jasig under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Jasig 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.jasig.portal.spring.web.context.support;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
/**
* HttpSessionListener that publishes {@link HttpSessionCreatedEvent} and {@link HttpSessionDestroyedEvent} events
* to the {@link WebApplicationContext} retrieved using {@link WebApplicationContextUtils#getRequiredWebApplicationContext(ServletContext)}
*
* @author Eric Dalquist
* @version $Revision$
*/
public class ApplicationContextDelagatingSessionListener implements HttpSessionListener {
/* (non-Javadoc)
* @see javax.servlet.http.HttpSessionListener#sessionCreated(javax.servlet.http.HttpSessionEvent)
*/
public void sessionCreated(HttpSessionEvent se) {
final HttpSession session = se.getSession();
final HttpSessionCreatedEvent httpSessionCreatedEvent = new HttpSessionCreatedEvent(session);
final WebApplicationContext webApplicationContext = this.getWebApplicationContext(session);
webApplicationContext.publishEvent(httpSessionCreatedEvent);
}
/* (non-Javadoc)
* @see javax.servlet.http.HttpSessionListener#sessionDestroyed(javax.servlet.http.HttpSessionEvent)
*/
public void sessionDestroyed(HttpSessionEvent se) {
final HttpSession session = se.getSession();
final HttpSessionDestroyedEvent httpSessionDestroyedEvent = new HttpSessionDestroyedEvent(session);
final WebApplicationContext webApplicationContext = this.getWebApplicationContext(session);
webApplicationContext.publishEvent(httpSessionDestroyedEvent);
}
/**
* Retrieves the WebApplicationContextUtils for the HttpSession.
*/
protected WebApplicationContext getWebApplicationContext(final HttpSession session) {
final ServletContext servletContext = session.getServletContext();
return WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
}
}