/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Middleware LLC, 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
* limitations under the License.
*/
package org.jboss.seam.servlet.event;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionEvent;
import javax.servlet.http.HttpSessionListener;
import org.jboss.seam.servlet.WebApplication;
import org.jboss.seam.servlet.event.ImplicitServletObjectsHolder.InternalHttpSessionEvent;
import org.jboss.seam.servlet.event.ImplicitServletObjectsHolder.InternalServletContextEvent;
import org.jboss.seam.servlet.event.ImplicitServletObjectsHolder.InternalServletRequestEvent;
import org.jboss.seam.servlet.event.literal.DestroyedLiteral;
import org.jboss.seam.servlet.event.literal.DidActivateLiteral;
import org.jboss.seam.servlet.event.literal.HttpMethodLiteral;
import org.jboss.seam.servlet.event.literal.InitializedLiteral;
import org.jboss.seam.servlet.event.literal.PathLiteral;
import org.jboss.seam.servlet.event.literal.WillPassivateLiteral;
/**
* Propagates Servlet lifecycle events to the CDI event bus.
*
* <p>
* This listener is auto-registered in Servlet 3.0 environments. If CDI injection is available into listeners, the BeanManager
* will be accessible to this instance as an injected resource. Otherwise, the BeanManager will be looked up using the
* BeanManager provider service.
* </p>
*
* <p>
* The internal events are fired to ensure that the setup and tear down routines happen around the main events. The event
* strategy is used to jump from a Servlet component which may not be managed by CDI to an observe we know to be a managed bean.
* </p>
*
* @author Nicklas Karlsson
* @author <a href="http://community.jboss.org/people/dan.j.allen">Dan Allen</a>
*/
public class ServletEventBridgeListener extends AbstractServletEventBridge implements HttpSessionActivationListener,
HttpSessionListener, ServletContextListener, ServletRequestListener {
public void contextInitialized(final ServletContextEvent e) {
fireEvent(new InternalServletContextEvent(e.getServletContext()), InitializedLiteral.INSTANCE);
WebApplication webapp = new WebApplication(e.getServletContext());
e.getServletContext().setAttribute(WEB_APPLICATION_ATTRIBUTE_NAME, webapp);
fireEvent(webapp, InitializedLiteral.INSTANCE);
fireEvent(e.getServletContext(), InitializedLiteral.INSTANCE);
}
public void contextDestroyed(final ServletContextEvent e) {
fireEvent(new InternalServletContextEvent(e.getServletContext()), DestroyedLiteral.INSTANCE);
}
public void requestInitialized(final ServletRequestEvent e) {
fireEvent(new InternalServletRequestEvent(e.getServletRequest()), InitializedLiteral.INSTANCE);
if (e.getServletRequest() instanceof HttpServletRequest) {
HttpServletRequest httpRequest = HttpServletRequest.class.cast(e.getServletRequest());
fireEvent(e.getServletRequest(), InitializedLiteral.INSTANCE, new PathLiteral(httpRequest.getServletPath()),
new HttpMethodLiteral(httpRequest.getMethod()));
} else {
fireEvent(e.getServletRequest(), InitializedLiteral.INSTANCE);
}
}
public void requestDestroyed(final ServletRequestEvent e) {
if (e.getServletRequest() instanceof HttpServletRequest) {
HttpServletRequest httpRequest = HttpServletRequest.class.cast(e.getServletRequest());
fireEvent(e.getServletRequest(), DestroyedLiteral.INSTANCE, new PathLiteral(httpRequest.getServletPath()),
new HttpMethodLiteral(httpRequest.getMethod()));
} else {
fireEvent(e.getServletRequest(), DestroyedLiteral.INSTANCE);
}
fireEvent(new InternalServletRequestEvent(e.getServletRequest()), DestroyedLiteral.INSTANCE);
}
public void sessionCreated(final HttpSessionEvent e) {
fireEvent(new InternalHttpSessionEvent(e.getSession()), InitializedLiteral.INSTANCE);
fireEvent(e.getSession(), InitializedLiteral.INSTANCE);
}
public void sessionDestroyed(final HttpSessionEvent e) {
fireEvent(e.getSession(), DestroyedLiteral.INSTANCE);
fireEvent(new InternalHttpSessionEvent(e.getSession()), DestroyedLiteral.INSTANCE);
}
public void sessionDidActivate(final HttpSessionEvent e) {
fireEvent(e.getSession(), DidActivateLiteral.INSTANCE);
}
public void sessionWillPassivate(final HttpSessionEvent e) {
fireEvent(e.getSession(), WillPassivateLiteral.INSTANCE);
}
}