From b8a63636ff2dbea555f14b42c5a49e1555e68f85 Mon Sep 17 00:00:00 2001 From: rfeng Date: Mon, 21 Mar 2011 20:28:20 +0000 Subject: Allow the spring component to receive parent application context from the composite context git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1083938 13f79535-47bb-0310-9956-ffa450edef68 --- .../webapp/spring/TuscanyDispatcherServlet.java | 64 ++++++++++++++++++++++ .../SpringWebApplicationContextAccessor.java | 49 +++++++---------- 2 files changed, 83 insertions(+), 30 deletions(-) create mode 100644 sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/spring/TuscanyDispatcherServlet.java (limited to 'sca-java-2.x/trunk/modules/implementation-spring-webapp/src') diff --git a/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/spring/TuscanyDispatcherServlet.java b/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/spring/TuscanyDispatcherServlet.java new file mode 100644 index 0000000000..4a615b9a3a --- /dev/null +++ b/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/spring/TuscanyDispatcherServlet.java @@ -0,0 +1,64 @@ +/* + * 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.tuscany.sca.host.webapp.spring; + +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.servlet.ServletConfig; +import javax.servlet.ServletException; + +import org.apache.tuscany.sca.host.webapp.WebAppHelper; +import org.apache.tuscany.sca.host.webapp.WebContextConfigurator; +import org.springframework.web.servlet.DispatcherServlet; + +/** + * A Servlet that provides a hook to control the lifecycle of Tuscany node and extend Spring Web MVC's DispatcherServlet + * + * @version $Rev$ $Date$ + */ +public class TuscanyDispatcherServlet extends DispatcherServlet { + private static final long serialVersionUID = 1L; + private Logger logger = Logger.getLogger(TuscanyDispatcherServlet.class.getName()); + + private transient WebContextConfigurator configurator; + + public TuscanyDispatcherServlet() { + super(); + } + + @Override + public void init(ServletConfig config) throws ServletException { + try { + super.init(config); + WebAppHelper.init(WebAppHelper.getConfigurator(this)); + } catch (Throwable e) { + logger.log(Level.SEVERE, e.getMessage(), e); + configurator.getServletContext().log(e.getMessage(), e); + throw new ServletException(e); + } + } + + public void destroy() { + WebAppHelper.stop(configurator); + super.destroy(); + } + +} diff --git a/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/implementation/spring/webapp/SpringWebApplicationContextAccessor.java b/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/implementation/spring/webapp/SpringWebApplicationContextAccessor.java index f95ba27242..d9596e3ecf 100644 --- a/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/implementation/spring/webapp/SpringWebApplicationContextAccessor.java +++ b/sca-java-2.x/trunk/modules/implementation-spring-webapp/src/main/java/org/apache/tuscany/sca/implementation/spring/webapp/SpringWebApplicationContextAccessor.java @@ -21,53 +21,42 @@ package org.apache.tuscany.sca.implementation.spring.webapp; import java.util.logging.Logger; +import javax.servlet.Servlet; import javax.servlet.ServletContext; import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.core.LifeCycleListener; -import org.apache.tuscany.sca.host.http.ExtensibleServletHost; import org.apache.tuscany.sca.implementation.spring.context.SpringApplicationContextAccessor; +import org.apache.tuscany.sca.runtime.RuntimeComponent; import org.springframework.context.ApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; +import org.springframework.web.servlet.FrameworkServlet; -public class SpringWebApplicationContextAccessor implements SpringApplicationContextAccessor, LifeCycleListener { +public class SpringWebApplicationContextAccessor implements SpringApplicationContextAccessor { private static Logger log = Logger.getLogger(SpringWebApplicationContextAccessor.class.getName()); - private ExtensionPointRegistry registry; - private ApplicationContext parentApplicationContext; public SpringWebApplicationContextAccessor(ExtensionPointRegistry registry) { super(); - this.registry = registry; } - @Override - public void start() { - ExtensibleServletHost servletHost = ExtensibleServletHost.getInstance(registry); - - ServletContext servletContext = servletHost.getServletContext(); - if (servletContext != null) { - parentApplicationContext = WebApplicationContextUtils.getWebApplicationContext(servletContext); - if (parentApplicationContext != null) { - log.info("Spring WebApplicationContext is now injected on Tuscany"); + public ApplicationContext getParentApplicationContext(RuntimeComponent component) { + ApplicationContext context = null; + Servlet servlet = component.getComponentContext().getCompositeContext().getAttribute(Servlet.class.getName()); + if (servlet instanceof FrameworkServlet) { + context = ((FrameworkServlet)servlet).getWebApplicationContext(); + if (context != null) { + return context; } } - - if (parentApplicationContext == null) { - parentApplicationContext = ApplicationContextAccessorBean.getInstance().getApplicationContext(); + ServletContext servletContext = + component.getComponentContext().getCompositeContext().getAttribute(ServletContext.class.getName()); + if (servletContext != null) { + context = WebApplicationContextUtils.getWebApplicationContext(servletContext); + if (context == null) { + context = ApplicationContextAccessorBean.getInstance().getApplicationContext(); + } } - } - - @Override - public void stop() { - parentApplicationContext = null; - } - - public ApplicationContext getParentApplicationContext() { - return parentApplicationContext; - } - public void setParentApplicationContext(ApplicationContext parentApplicationContext) { - this.parentApplicationContext = parentApplicationContext; + return context; } } -- cgit v1.2.3