001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 package org.apache.myfaces.tobago.webapp; 021 022 import org.apache.commons.logging.Log; 023 import org.apache.commons.logging.LogFactory; 024 import org.apache.myfaces.tobago.config.TobagoConfig; 025 026 import javax.faces.FactoryFinder; 027 import javax.faces.lifecycle.LifecycleFactory; 028 import javax.servlet.ServletContextEvent; 029 import javax.servlet.ServletContextListener; 030 import javax.servlet.ServletException; 031 import javax.servlet.http.HttpServlet; 032 033 /** 034 * Workaround: Weblogic 8.1 calls the ContextListeners after calling 035 * Servlet.init() but, JSF assume it does it before. 036 * Maybe weblogic doesn't call ContextListeners from *.jar! 037 * 038 * @see <a href="http://forum.java.sun.com/thread.jsp?forum=427&thread=499690"> 039 * WLS8.1 & JSF 1.0 Final: "Faces Servlet" failed to preload</a> 040 */ 041 public class WeblogicWorkaroundServlet extends HttpServlet { 042 043 private static final long serialVersionUID = -8636608446986072719L; 044 045 private static final Log LOG = LogFactory.getLog(WeblogicWorkaroundServlet.class); 046 047 public void init() throws ServletException { 048 if (LOG.isDebugEnabled()) { 049 LOG.debug("1st"); 050 } 051 LifecycleFactory factory = (LifecycleFactory) 052 FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY); 053 054 if (factory == null) { // Faces ConfigureListener is not called until now! 055 final String className = "com.sun.faces.config.ConfigureListener"; 056 if (LOG.isDebugEnabled()) { 057 LOG.debug("Init of " + className + " by servlet!"); 058 } 059 callInit(className); 060 } 061 062 if (LOG.isDebugEnabled()) { 063 LOG.debug("2nd"); 064 } 065 TobagoConfig tobagoConfig = (TobagoConfig) 066 getServletContext().getAttribute(TobagoConfig.TOBAGO_CONFIG); 067 068 if (tobagoConfig == null) { // TobagoServletContextListener is not called until now! 069 final String className = TobagoServletContextListener.class.getName(); 070 if (LOG.isDebugEnabled()) { 071 LOG.debug("Init of " + className + " by servlet!"); 072 } 073 callInit(className); 074 } 075 076 if (LOG.isDebugEnabled()) { 077 LOG.debug("3rd"); 078 } 079 } 080 081 private void callInit(String className) { 082 try { 083 Class aClass = Class.forName(className); 084 ServletContextListener listener = (ServletContextListener) aClass.newInstance(); 085 listener.contextInitialized(new ServletContextEvent(getServletContext())); 086 } catch (ClassNotFoundException e) { 087 LOG.error("", e); 088 } catch (IllegalAccessException e) { 089 LOG.error("", e); 090 } catch (InstantiationException e) { 091 LOG.error("", e); 092 } 093 } 094 } 095