summaryrefslogtreecommitdiffstats
path: root/sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java
diff options
context:
space:
mode:
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java')
-rw-r--r--sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java263
1 files changed, 263 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java b/sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java
new file mode 100644
index 0000000000..7c5d0f46d6
--- /dev/null
+++ b/sandbox/sebastien/java/sca-node/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SCAParentApplicationContext.java
@@ -0,0 +1,263 @@
+/*
+ * 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;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.core.factory.ObjectFactory;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.implementation.java.injection.JavaPropertyValueObjectFactory;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.BeanFactory;
+import org.springframework.beans.factory.NoSuchBeanDefinitionException;
+import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationEvent;
+import org.springframework.context.MessageSourceResolvable;
+import org.springframework.context.NoSuchMessageException;
+import org.springframework.core.io.Resource;
+
+/**
+ * A Spring ParentApplicationContext for a given Spring Implementation
+ *
+ * The Parent application context is responsible for handling those entities within a Spring
+ * application context that actually belong to SCA rather than to Spring. The principal things
+ * are Properties and References. These may be present either through explicit <sca:property/>
+ * and <sca:reference/> elements in the application context or they may be implicit through
+ * unresolved Spring bean <property.../> elements. In either case, it is the Parent application
+ * context that must provide Spring beans that correspond to the property or reference, as derived
+ * from the SCA composite in which the Spring application context is an implementation.
+ *
+ * @version $Rev: 511195 $ $Date: 2007-02-24 02:29:46 +0000 (Sat, 24 Feb 2007) $
+ */
+class SCAParentApplicationContext implements ApplicationContext {
+
+ // The Spring implementation for which this is the parent application context
+ private SpringImplementation implementation;
+ private RuntimeComponent component;
+ private JavaPropertyValueObjectFactory propertyFactory;
+
+ private static final String[] EMPTY_ARRAY = new String[0];
+
+ public SCAParentApplicationContext(RuntimeComponent component,
+ SpringImplementation implementation,
+ ProxyFactory proxyService,
+ JavaPropertyValueObjectFactory propertyValueObjectFactory) {
+ this.implementation = implementation;
+ this.component = component;
+ this.propertyFactory = propertyValueObjectFactory;
+ } // end constructor
+
+ public Object getBean(String name) throws BeansException {
+ return getBean(name, null);
+ }
+
+ /**
+ * Get a Bean for a reference or for a property.
+ *
+ * @param name - the name of the Bean required
+ * @param requiredType - the required type of the Bean (either a Java class or a Java interface)
+ * @return Object - a Bean which matches the requested bean
+ */
+ public Object getBean(String name, Class requiredType) throws BeansException {
+ System.out.println("Spring parent context - getBean called for name: " + name);
+ // The expectation is that the requested Bean is either a reference or a property
+ // from the Spring context
+ for (Reference reference : implementation.getReferences()) {
+ if (reference.getName().equals(name)) {
+ // Extract the Java interface for the reference (it can't be any other interface type
+ // for a Spring application context)
+ if (requiredType == null) {
+ JavaInterface javaInterface = (JavaInterface)reference.getInterfaceContract().getInterface();
+ requiredType = javaInterface.getJavaClass();
+ }
+ // Create and return the proxy for the reference
+ return getService(requiredType, reference.getName());
+ } // end if
+ } // end for
+
+ // For a property, get the name and the required Java type and create a Bean
+ // of that type with the value inserted.
+ for (Property property : implementation.getProperties()) {
+ if (property.getName().equals(name)) {
+ if (requiredType == null) {
+ // The following code only deals with a subset of types and was superceded
+ // by the information from the implementation (which uses Classes as found
+ // in the Spring implementation itself.
+ //requiredType = JavaXMLMapper.getJavaType( property.getXSDType() );
+ requiredType = implementation.getPropertyClass(name);
+ }
+ return getPropertyBean(requiredType, property.getName());
+ } // end if
+ } // end for
+ throw new NoSuchBeanDefinitionException("Unable to find Bean with name " + name);
+
+ } // end method getBean( String, Class )
+
+ /**
+ * Creates a proxy Bean for a reference
+ * @param <B> the Business interface type for the reference
+ * @param businessInterface - the business interface as a Class
+ * @param referenceName - the name of the Reference
+ * @return an Bean of the type defined by <B>
+ */
+ private <B> B getService(Class<B> businessInterface, String referenceName) {
+ return component.getComponentContext().getService(businessInterface, referenceName);
+ }
+
+ /**
+ * Method to create a Java Bean for a Property value
+ * @param <B> the class type of the Bean
+ * @param requiredType - a Class object for the required type
+ * @param name - the Property name
+ * @return - a Bean of the specified property, with value set
+ */
+ private <B> B getPropertyBean(Class requiredType, String name) {
+ B propertyObject = null;
+ // Get the component's list of properties
+ List<ComponentProperty> props = component.getProperties();
+ for (ComponentProperty prop : props) {
+ if (prop.getName().equals(name)) {
+ // On finding the property, create a factory for it and create a Bean using
+ // the factory
+ ObjectFactory factory = propertyFactory.createValueFactory(prop, prop.getValue(), requiredType);
+ propertyObject = (B)factory.getInstance();
+ } // end if
+ } // end for
+
+ return propertyObject;
+ }
+
+ public boolean containsBean(String name) {
+ // TODO
+ System.out.println("Spring parent context - containsBean called for name: " + name);
+ return false;
+ }
+
+ public boolean isSingleton(String name) throws NoSuchBeanDefinitionException {
+ // TODO
+ return false;
+ }
+
+ public boolean isTypeMatch(String name, Class targetType) throws NoSuchBeanDefinitionException {
+ throw new UnsupportedOperationException();
+ }
+
+ public Class getType(String name) throws NoSuchBeanDefinitionException {
+ return null;
+ }
+
+ public String[] getAliases(String name) throws NoSuchBeanDefinitionException {
+ return EMPTY_ARRAY;
+ }
+
+ public ApplicationContext getParent() {
+ return null;
+ }
+
+ public AutowireCapableBeanFactory getAutowireCapableBeanFactory() throws IllegalStateException {
+ return null;
+ }
+
+ public String getDisplayName() {
+ return implementation.getURI();
+ }
+
+ public long getStartupDate() {
+ return 0;
+ }
+
+ public boolean containsBeanDefinition(String beanName) {
+ return false;
+ }
+
+ public int getBeanDefinitionCount() {
+ return 0;
+ }
+
+ public String[] getBeanDefinitionNames() {
+ return new String[0];
+ }
+
+ public String[] getBeanNamesForType(Class type) {
+ return new String[0];
+ }
+
+ public String[] getBeanNamesForType(Class type, boolean includePrototypes, boolean includeFactoryBeans) {
+ return new String[0];
+ }
+
+ public Map getBeansOfType(Class type) throws BeansException {
+ return null;
+ }
+
+ public Map getBeansOfType(Class type, boolean includePrototypes, boolean includeFactoryBeans) throws BeansException {
+ return null;
+ }
+
+ public boolean isPrototype(String theString) {
+ return false;
+ }
+
+ public BeanFactory getParentBeanFactory() {
+ return null;
+ }
+
+ public boolean containsLocalBean(String name) {
+ return false;
+ }
+
+ public String getMessage(String code, Object[] args, String defaultMessage, Locale locale) {
+ return null;
+ }
+
+ public String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException {
+ return null;
+ }
+
+ public String getMessage(MessageSourceResolvable resolvable, Locale locale) throws NoSuchMessageException {
+ return null;
+ }
+
+ public void publishEvent(ApplicationEvent event) {
+
+ }
+
+ public Resource[] getResources(String locationPattern) throws IOException {
+ return new Resource[0];
+ }
+
+ public Resource getResource(String location) {
+ return null;
+ }
+
+ public ClassLoader getClassLoader() {
+ // REVIEW: this is almost certainly flawed, but it's not clear how the SCA runtime's
+ // resource loading mechanism is exposed right now.
+ return this.getClass().getClassLoader();
+ }
+}