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.ThemeConfig; 025 import org.apache.myfaces.tobago.config.TobagoConfig; 026 import org.apache.myfaces.tobago.config.TobagoConfigParser; 027 import org.apache.myfaces.tobago.context.ResourceManagerFactory; 028 import org.apache.myfaces.tobago.util.LayoutUtil; 029 030 import javax.servlet.ServletContext; 031 import javax.servlet.ServletContextEvent; 032 import javax.servlet.ServletContextListener; 033 034 public class TobagoServletContextListener implements ServletContextListener { 035 036 private static final Log LOG 037 = LogFactory.getLog(TobagoServletContextListener.class); 038 039 public void contextInitialized(ServletContextEvent event) { 040 041 ServletContext servletContext = event.getServletContext(); 042 043 if (servletContext.getAttribute(TobagoConfig.TOBAGO_CONFIG) != null) { 044 LOG.warn("Tobago has been already initialized. Do nothing. " 045 + "(This may happen when there is a TobagoServletContextListener configured manually.)"); 046 return; 047 } 048 049 if (LOG.isInfoEnabled()) { 050 LOG.info("*** contextInitialized ***"); 051 } 052 053 try { 054 055 // tobago-config.xml 056 TobagoConfig tobagoConfig 057 = new TobagoConfigParser().parse(servletContext); 058 servletContext.setAttribute(TobagoConfig.TOBAGO_CONFIG, tobagoConfig); 059 060 // todo: cleanup, use one central TobagoConfig, no singleton ResourceManager 061 // resources 062 ResourceManagerFactory.init(servletContext, tobagoConfig); 063 064 // apply bugfix 065 LayoutUtil.setFixLayoutTransparency(tobagoConfig.isFixLayoutTransparency()); 066 067 // prepare themes 068 tobagoConfig.resolveThemes(); 069 070 // theme config cache 071 ThemeConfig.init(servletContext); 072 073 } catch (Throwable e) { 074 if (LOG.isFatalEnabled()) { 075 String error = "Error while deploy process. Tobago can't be initialized! " 076 + "Application will not run!"; 077 LOG.fatal(error, e); 078 throw new RuntimeException(error, e); 079 } 080 } 081 } 082 083 public void contextDestroyed(ServletContextEvent event) { 084 085 ServletContext servletContext = event.getServletContext(); 086 087 if (servletContext.getAttribute(TobagoConfig.TOBAGO_CONFIG) == null) { 088 LOG.warn("Tobago is not initialized. Do nothing. " 089 + "(This may happen when there is a TobagoServletContextListener configured manually.)"); 090 return; 091 } 092 093 if (LOG.isInfoEnabled()) { 094 LOG.info("*** contextDestroyed ***\n" 095 + "--- snip -----------------------------------------------------------------------"); 096 } 097 098 servletContext.removeAttribute(TobagoConfig.TOBAGO_CONFIG); 099 ResourceManagerFactory.release(servletContext); 100 101 // theme config cache 102 ThemeConfig.shutdown(servletContext); 103 104 LogFactory.releaseAll(); 105 // LogManager.shutdown(); 106 } 107 108 }