diff options
Diffstat (limited to 'tags/java/sca/1.5.1/modules/implementation-spring-runtime/src/main/java/org/apache/tuscany/sca/implementation/spring/runtime/context/SpringContextTie.java')
| -rw-r--r-- | tags/java/sca/1.5.1/modules/implementation-spring-runtime/src/main/java/org/apache/tuscany/sca/implementation/spring/runtime/context/SpringContextTie.java | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1/modules/implementation-spring-runtime/src/main/java/org/apache/tuscany/sca/implementation/spring/runtime/context/SpringContextTie.java b/tags/java/sca/1.5.1/modules/implementation-spring-runtime/src/main/java/org/apache/tuscany/sca/implementation/spring/runtime/context/SpringContextTie.java new file mode 100644 index 0000000000..6e8f1e8df4 --- /dev/null +++ b/tags/java/sca/1.5.1/modules/implementation-spring-runtime/src/main/java/org/apache/tuscany/sca/implementation/spring/runtime/context/SpringContextTie.java @@ -0,0 +1,207 @@ +/*
+ * 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.runtime.context;
+
+import java.net.URL;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.tuscany.sca.implementation.spring.processor.ComponentNameAnnotationProcessor;
+import org.apache.tuscany.sca.implementation.spring.processor.ComponentStub;
+import org.apache.tuscany.sca.implementation.spring.processor.ConstructorAnnotationProcessor;
+import org.apache.tuscany.sca.implementation.spring.processor.InitDestroyAnnotationProcessor;
+import org.apache.tuscany.sca.implementation.spring.processor.PropertyAnnotationProcessor;
+import org.apache.tuscany.sca.implementation.spring.processor.PropertyValueStub;
+import org.apache.tuscany.sca.implementation.spring.processor.ReferenceAnnotationProcessor;
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.config.BeanPostProcessor;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.beans.factory.config.ConstructorArgumentValues;
+import org.springframework.beans.factory.config.TypedStringValue;
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+import org.springframework.beans.factory.support.ManagedList;
+import org.springframework.beans.factory.xml.XmlBeanFactory;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.context.support.GenericApplicationContext;
+import org.springframework.core.io.UrlResource;
+import org.springframework.core.SpringVersion;
+
+/**
+ * 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;
+ private boolean isAnnotationSupported;
+ private String versionSupported;
+ private boolean isMultipleContextSupport;
+
+ // TUSCANY-3128
+ // extension of the generic application context just to force the classloader
+ // on the bean factory to stay set to the contribution classloader
+ // instead of being set back to the application classloader
+ private class LocalGenericApplicationContext extends GenericApplicationContext{
+
+ ClassLoader classloader = null;
+
+ public LocalGenericApplicationContext(DefaultListableBeanFactory beanFactory,
+ ApplicationContext parent,
+ ClassLoader classloader) {
+ super(beanFactory, parent);
+ this.classloader = classloader;
+ }
+
+ @Override
+ protected void postProcessBeanFactory(
+ ConfigurableListableBeanFactory beanFactory) {
+ beanFactory.setBeanClassLoader(classloader);
+ }
+ }
+
+ public SpringContextTie(SpringImplementationStub implementation, URL resource, boolean annotationSupport, String versionSupported, boolean multipleContextSupport) throws Exception {
+ this.implementation = implementation;
+ this.isAnnotationSupported = annotationSupport;
+ this.versionSupported = versionSupported;
+ this.isMultipleContextSupport = multipleContextSupport;
+ if (! this.versionSupported.equals("ANY")) {
+ if ((SpringVersion.getVersion()!= null) && (! SpringVersion.getVersion().equals(versionSupported)))
+ throw new RuntimeException("Unsupported version: Use only Spring Framework Version " + versionSupported);
+ }
+ SCAParentApplicationContext scaParentContext = new SCAParentApplicationContext(implementation);
+ springContext = createApplicationContext(scaParentContext, resource);
+ }
+
+ 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();
+ }
+ }
+
+ /**
+ * Create appropriate ApplicationContext by reading the bean definitions.
+ */
+ private AbstractApplicationContext createApplicationContext(SCAParentApplicationContext scaParentContext, URL resource) {
+
+ XmlBeanFactory beanFactory = new XmlBeanFactory(new UrlResource(resource));
+ beanFactory.setBeanClassLoader(implementation.getClassLoader());
+ AbstractApplicationContext appContext = null;
+
+ if (isMultipleContextSupport) {
+ for (String bean : beanFactory.getBeanDefinitionNames()) {
+ String beanClassName = (beanFactory.getType(bean)).getName();
+ // Using FileSystemXmlApplicationContext is not supported, as the
+ // SCA runtime does not support paths relative to current VM working directory.
+ /*if (beanClassName.indexOf(".FileSystemXmlApplicationContext") != -1) {
+ throw new RuntimeException("Usage of FileSystemXmlApplicationContext Bean is not supported");
+ }*/
+
+ if (beanClassName.indexOf(".ClassPathXmlApplicationContext") != -1) {
+ BeanDefinition beanDef = beanFactory.getBeanDefinition(bean);
+ String[] configLocations = null;
+ List<ConstructorArgumentValues.ValueHolder> conArgs =
+ beanDef.getConstructorArgumentValues().getGenericArgumentValues();
+ for (ConstructorArgumentValues.ValueHolder conArg : conArgs) {
+ if (conArg.getValue() instanceof TypedStringValue) {
+ TypedStringValue value = (TypedStringValue) conArg.getValue();
+ if (value.getValue().indexOf(".xml") != -1)
+ configLocations = new String[]{value.getValue()};
+ }
+ if (conArg.getValue() instanceof ManagedList) {
+ Iterator itml = ((ManagedList)conArg.getValue()).iterator();
+ StringBuffer values = new StringBuffer();
+ while (itml.hasNext()) {
+ TypedStringValue next = (TypedStringValue)itml.next();
+ if (next.getValue().indexOf(".xml") != -1) {
+ values.append(implementation.getClassLoader().getResource(next.getValue()).toString());
+ values.append("~");
+ }
+ }
+ configLocations = (values.toString()).split("~");
+ }
+ }
+
+ appContext = new ClassPathXmlApplicationContext(configLocations, true, scaParentContext);
+ if (isAnnotationSupported)
+ includeAnnotationProcessors(appContext.getBeanFactory());
+ return appContext;
+ }
+ }
+ }
+
+ // use the generic application context as default
+ if (isAnnotationSupported)
+ {
+ includeAnnotationProcessors(beanFactory);
+ }
+
+ appContext = new LocalGenericApplicationContext(beanFactory,
+ scaParentContext,
+ implementation.getClassLoader());
+ return appContext;
+ }
+
+ 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);
+ }
+
+}
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