/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.openejb.server.httpd;
import org.apache.openejb.cdi.ThreadSingletonServiceImpl;
import org.apache.openejb.cdi.WebappWebBeansContext;
import org.apache.openejb.util.LogCategory;
import org.apache.openejb.util.Logger;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.context.ConversationContext;
import org.apache.webbeans.conversation.ConversationManager;
import org.apache.webbeans.el.ELContextStore;
import org.apache.webbeans.spi.FailOverService;
import javax.enterprise.context.Conversation;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.context.SessionScoped;
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 java.util.Map;
/**
* @version $Rev$ $Date$
*
* Used as a stack executed at the end of the request too. Avoid multiple (useless) listeners.
*/
public class EndWebBeansListener implements ServletContextListener, ServletRequestListener, HttpSessionListener, HttpSessionActivationListener {
static final ThreadLocal<Boolean> FAKE_REQUEST = new ThreadLocal<Boolean>();
private final String contextKey;
/**
* Logger instance
*/
private static final Logger logger = Logger.getInstance(LogCategory.OPENEJB_CDI, EndWebBeansListener.class);
protected FailOverService failoverService;
/**
* Manages the container lifecycle
*/
protected WebBeansContext webBeansContext;
/**
* Default constructor
*
* @param webBeansContext the OWB context
*/
public EndWebBeansListener(WebBeansContext webBeansContext) {
this.webBeansContext = webBeansContext;
if (webBeansContext != null) {
this.failoverService = this.webBeansContext.getService(FailOverService.class);
this.contextKey = "org.apache.tomee.catalina.WebBeansListener@" + webBeansContext.hashCode();
} else {
this.contextKey = "notused";
}
}
/**
* {@inheritDoc}
*/
@Override
public void requestDestroyed(ServletRequestEvent event) {
if (webBeansContext == null) {
return;
}
if (logger.isDebugEnabled()) {
logger.debug("Destroying a request : [{0}]", event == null ? "null" : event.getServletRequest().getRemoteAddr());
}
final Object oldContext;
if (event != null) {
oldContext = event.getServletRequest().getAttribute(contextKey);
} else {
oldContext = null;
}
try {
if (event != null
&& failoverService != null
&& failoverService.isSupportFailOver()) {
Object request = event.getServletRequest();
if (request instanceof HttpServletRequest) {
HttpServletRequest httpRequest = (HttpServletRequest) request;
javax.servlet.http.HttpSession session = httpRequest.getSession(false);
if (session != null) {
failoverService.sessionIsIdle(session);
}
}
}
// clean up the EL caches after each request
final ELContextStore elStore = ELContextStore.getInstance(false);
if (elStore != null) {
elStore.destroyELContextStore();
}
webBeansContext.getContextsService().endContext(RequestScoped.class, event);
if (webBeansContext instanceof WebappWebBeansContext) { // end after child
((WebappWebBeansContext) webBeansContext).getParent().getContextsService().endContext(RequestScoped.class, event);
}
} finally {
ThreadSingletonServiceImpl.enter((WebBeansContext) oldContext);
}
}
/**
* {@inheritDoc}
*/
@Override
public void requestInitialized(ServletRequestEvent event) {
// no-op
}
/**
* {@inheritDoc}
*/
@Override
public void sessionCreated(HttpSessionEvent event) {
// no-op
}
/**
* {@inheritDoc}
*/
@Override
public void sessionDestroyed(HttpSessionEvent event) {
if (webBeansContext == null) {
return;
}
if (logger.isDebugEnabled()) {
logger.debug("Destroying a session with session id : [{0}]", event.getSession().getId());
}
// ensure session ThreadLocal is set
webBeansContext.getContextsService().startContext(SessionScoped.class, event.getSession());
webBeansContext.getContextsService().endContext(SessionScoped.class, event.getSession());
if (WebappWebBeansContext.class.isInstance(webBeansContext)) { // end after child
WebappWebBeansContext.class.cast(webBeansContext).getParent().getContextsService().endContext(SessionScoped.class, event.getSession());
}
final ConversationManager conversationManager = webBeansContext.getConversationManager();
final Map<Conversation, ConversationContext> cc = conversationManager.getAndRemoveConversationMapWithSessionId(event.getSession().getId());
for (final ConversationContext c : cc.values()) {
if (c != null) {
c.destroy();
}
}
destroyFakedRequest();
}
private void destroyFakedRequest() {
final Boolean faked = FAKE_REQUEST.get();
try {
if (faked != null && faked) {
requestDestroyed(null);
}
} finally {
FAKE_REQUEST.remove();
}
}
@Override
public void sessionWillPassivate(HttpSessionEvent event) {
if (webBeansContext == null) {
return;
}
if (failoverService != null && failoverService.isSupportPassivation()) {
failoverService.sessionWillPassivate(event.getSession());
}
destroyFakedRequest();
}
@Override
public void sessionDidActivate(HttpSessionEvent event) {
// no-op
}
@Override
public void contextInitialized(ServletContextEvent servletContextEvent) {
destroyFakedRequest();
}
@Override
public void contextDestroyed(ServletContextEvent servletContextEvent) {
destroyFakedRequest();
}
}