| /* |
| * 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.cloudstack.spring.module.web; |
| |
| import java.io.IOException; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletContextEvent; |
| |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.LogManager; |
| import org.springframework.context.ApplicationContext; |
| import org.springframework.web.context.ConfigurableWebApplicationContext; |
| import org.springframework.web.context.ContextLoaderListener; |
| |
| import org.apache.cloudstack.spring.module.factory.CloudStackSpringContext; |
| |
| public class CloudStackContextLoaderListener extends ContextLoaderListener { |
| |
| public static final String WEB_PARENT_MODULE = "parentModule"; |
| public static final String WEB_PARENT_MODULE_DEFAULT = "web"; |
| |
| protected Logger logger = LogManager.getLogger(getClass()); |
| |
| CloudStackSpringContext cloudStackContext; |
| String configuredParentName; |
| |
| @Override |
| protected ApplicationContext loadParentContext(ServletContext servletContext) { |
| return cloudStackContext.getApplicationContextForWeb(configuredParentName); |
| } |
| |
| @Override |
| public void contextInitialized(ServletContextEvent event) { |
| logger.trace("context initialized"); |
| try { |
| cloudStackContext = new CloudStackSpringContext(); |
| cloudStackContext.registerShutdownHook(); |
| event.getServletContext().setAttribute(CloudStackSpringContext.CLOUDSTACK_CONTEXT_SERVLET_KEY, cloudStackContext); |
| } catch (IOException e) { |
| logger.error("Failed to start CloudStack", e); |
| throw new RuntimeException("Failed to initialize CloudStack Spring modules", e); |
| } |
| |
| configuredParentName = event.getServletContext().getInitParameter(WEB_PARENT_MODULE); |
| if (configuredParentName == null) { |
| configuredParentName = WEB_PARENT_MODULE_DEFAULT; |
| } |
| |
| super.contextInitialized(event); |
| } |
| |
| @Override |
| protected void customizeContext(ServletContext servletContext, ConfigurableWebApplicationContext applicationContext) { |
| logger.trace("customize context"); |
| super.customizeContext(servletContext, applicationContext); |
| |
| String[] newLocations = cloudStackContext.getConfigLocationsForWeb(configuredParentName, applicationContext.getConfigLocations()); |
| |
| applicationContext.setConfigLocations(newLocations); |
| } |
| } |