/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
*
* Use is subject to license terms.
*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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
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*/
package org.jboss.weld.servlet;
import javax.inject.Inject;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
import org.jboss.weld.context.http.HttpSessionContext;
import org.jboss.weld.context.http.HttpSessionDestructionContext;
import org.jboss.weld.manager.BeanManagerImpl;
/**
* This listener activates the HttpSessionDestructionContext in sessionDestroyed(), but only if HttpSessionContext is not
* active at the time (it is active when sessionDestroyed is invoked as a result of session.invalidate() during an
* http request, and is not active when sessionDestroyed is invoked when the session times out or when all the sessions
* are destroyed because the deployment is being removed).
*
* This listener should always be the last registered listener. This will ensure this listener can activate the
* session context before any other listeners try to access it (the listeners are notified in reverse order when a
* session is being destroyed). Any listeners notified before this one will receive a ContextNotActiveException when
* trying to access any @SessionScoped bean.
*
* @author Marko Luksa
*/
public class WeldTerminalListener implements HttpSessionListener {
@Inject
private BeanManagerImpl beanManager;
@Override
public void sessionCreated(HttpSessionEvent httpSessionEvent) {
}
@Override
public void sessionDestroyed(HttpSessionEvent event) {
if (!getSessionContext().isActive()) {
HttpSessionDestructionContext context = getHttpSessionDestructionContext();
context.associate(event.getSession());
context.activate();
}
}
private HttpSessionContext getSessionContext() {
return beanManager.instance().select(HttpSessionContext.class).get();
}
private HttpSessionDestructionContext getHttpSessionDestructionContext() {
return beanManager.instance().select(HttpSessionDestructionContext.class).get();
}
}