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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/context/tie/SpringContextTie.java | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/context/tie/SpringContextTie.java b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/context/tie/SpringContextTie.java new file mode 100644 index 0000000000..8bcdc8108d --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/context/tie/SpringContextTie.java @@ -0,0 +1,130 @@ +/* + * 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.implementation.spring.context.tie; + +import java.net.URL; +import java.util.List; + +import org.apache.tuscany.sca.implementation.spring.processor.tie.ComponentNameAnnotationProcessor; +import org.apache.tuscany.sca.implementation.spring.processor.tie.ComponentStub; +import org.apache.tuscany.sca.implementation.spring.processor.tie.ConstructorAnnotationProcessor; +import org.apache.tuscany.sca.implementation.spring.processor.tie.InitDestroyAnnotationProcessor; +import org.apache.tuscany.sca.implementation.spring.processor.tie.PropertyAnnotationProcessor; +import org.apache.tuscany.sca.implementation.spring.processor.tie.PropertyValueStub; +import org.apache.tuscany.sca.implementation.spring.processor.tie.ReferenceAnnotationProcessor; +import org.springframework.beans.BeansException; +import org.springframework.beans.factory.config.BeanPostProcessor; +import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; +import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; +import org.springframework.context.ApplicationContext; +import org.springframework.context.support.AbstractApplicationContext; +import org.springframework.context.support.GenericApplicationContext; +import org.springframework.core.io.UrlResource; + +/** + * This is the runtime side tie for the corresponding tuscany side stub class. + * It enables the Tuscany code to invoke methods on a Spring context without + * needing to know about any Spring classes. See the SpringContextStub class + * in the implementation-spring module for what the stub does. + */ +public class SpringContextTie { + + private AbstractApplicationContext springContext; + private SpringImplementationStub implementation; + + public SpringContextTie(SpringImplementationStub implementation, List<URL> resource) { + this.implementation = implementation; + SCAParentApplicationContext scaParentContext = new SCAParentApplicationContext(implementation); + springContext = createApplicationContext(scaParentContext, resource); + } + + public ApplicationContext getApplicationContext() { + return springContext; + } + + public void start() { + // Do refresh here to ensure that Spring Beans are not touched before the SCA config process is complete... + springContext.refresh(); + springContext.start(); + } + + public void close() { + springContext.close(); + if (springContext instanceof GenericApplicationContext) { + springContext.stop(); + } + } + + /** + * Include BeanPostProcessor to deal with SCA Annotations in Spring Bean + */ + private AbstractApplicationContext createApplicationContext(SCAParentApplicationContext scaParentContext, + List<URL> resources) { + + GenericApplicationContext appCtx = + new SCAGenericApplicationContext(scaParentContext, implementation.getClassLoader()); + XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(appCtx); + + // REVIEW: [rfeng] How do we control the schema validation + xmlReader.setValidating(false); + + for (URL resource : resources) { + xmlReader.loadBeanDefinitions(new UrlResource(resource)); + } + xmlReader.setBeanClassLoader(implementation.getClassLoader()); + includeAnnotationProcessors(appCtx.getBeanFactory()); + return appCtx; + + } + + public Object getBean(String id) throws BeansException { + return springContext.getBean(id); + } + + /** + * Include BeanPostProcessor to deal with SCA Annotations in Spring Bean + */ + private void includeAnnotationProcessors(ConfigurableListableBeanFactory beanFactory) { + + // Processor to deal with @Init and @Destroy SCA Annotations + BeanPostProcessor initDestroyProcessor = new InitDestroyAnnotationProcessor(); + beanFactory.addBeanPostProcessor(initDestroyProcessor); + + // Processor to deal with @Reference SCA Annotations + ComponentStub component = new ComponentStub(implementation.getComponentTie()); + BeanPostProcessor referenceProcessor = new ReferenceAnnotationProcessor(component); + beanFactory.addBeanPostProcessor(referenceProcessor); + + // Processor to deal with @Property SCA Annotations + PropertyValueStub pvs = new PropertyValueStub(implementation.getPropertyValueTie()); + BeanPostProcessor propertyProcessor = new PropertyAnnotationProcessor(pvs); + beanFactory.addBeanPostProcessor(propertyProcessor); + + // Processor to deal with @ComponentName SCA Annotations + BeanPostProcessor componentNameProcessor = + new ComponentNameAnnotationProcessor(implementation.getComponentName()); + beanFactory.addBeanPostProcessor(componentNameProcessor); + + // Processor to deal with @Constructor SCA Annotations + BeanPostProcessor constructorProcessor = new ConstructorAnnotationProcessor(); + beanFactory.addBeanPostProcessor(constructorProcessor); + } + +} |