| /* |
| * 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 flex.messaging; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpSession; |
| |
| import flex.messaging.log.Log; |
| |
| /** |
| * Provider implementation for <code>HttpFlexSession</code>s. |
| * Not intended for public use. |
| */ |
| public class HttpFlexSessionProvider extends AbstractFlexSessionProvider |
| { |
| //-------------------------------------------------------------------------- |
| // |
| // Public Methods |
| // |
| //-------------------------------------------------------------------------- |
| |
| /** |
| * Factory method to get an existing <tt>HttpFlexSession</tt> for the current request, |
| * or create and return a new <code>HttpFlexSession</code> if necessary. |
| * The <code>HttpFlexSession</code> wraps the underlying J2EE <code>HttpSession</code>. |
| * Not intended for public use. |
| * |
| * @param request The current <tt>HttpServletRequest</tt>. |
| * @return A <tt>HttpFlexSession</tt>. |
| */ |
| public HttpFlexSession getOrCreateSession(HttpServletRequest request) |
| { |
| HttpFlexSession flexSession; |
| HttpSession httpSession = request.getSession(true); |
| |
| if (!HttpFlexSession.isHttpSessionListener && !HttpFlexSession.warnedNoEventRedispatch) |
| { |
| HttpFlexSession.warnedNoEventRedispatch = true; |
| if (Log.isWarn()) |
| Log.getLogger(HttpFlexSession.WARN_LOG_CATEGORY).warn("HttpFlexSession has not been registered as a listener in web.xml for this application so no events will be dispatched to FlexSessionAttributeListeners or FlexSessionBindingListeners. To correct this, register flex.messaging.HttpFlexSession as a listener in web.xml."); |
| } |
| |
| boolean isNew = false; |
| synchronized (httpSession) |
| { |
| flexSession = (HttpFlexSession)httpSession.getAttribute(HttpFlexSession.SESSION_ATTRIBUTE); |
| if (flexSession == null) |
| { |
| flexSession = new HttpFlexSession(this); |
| // Correlate this FlexSession to the HttpSession before triggering any listeners. |
| FlexContext.setThreadLocalSession(flexSession); |
| httpSession.setAttribute(HttpFlexSession.SESSION_ATTRIBUTE, flexSession); |
| flexSession.setHttpSession(httpSession); |
| isNew = true; |
| } |
| else |
| { |
| FlexContext.setThreadLocalSession(flexSession); |
| if (flexSession.httpSession == null) |
| { |
| // httpSession is null if the instance is new or is from |
| // serialization. |
| flexSession.setHttpSession(httpSession); |
| isNew = true; |
| } |
| } |
| } |
| |
| if (isNew) |
| { |
| getFlexSessionManager().registerFlexSession(flexSession); |
| flexSession.notifyCreated(); |
| |
| if (Log.isDebug()) |
| Log.getLogger(HttpFlexSession.FLEX_SESSION_LOG_CATEGORY).debug("FlexSession created with id '" + flexSession.getId() + "' for an Http-based client connection."); |
| } |
| |
| return flexSession; |
| } |
| } |