Author: ramkumar
Date: Wed May 6 11:41:49 2009
New Revision: 772155
URL: http://svn.apache.org/viewvc?rev=772155&view=rev
Log:
Refactoring Spring module
Added:
tuscany/branches/sca-java-1.x/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SpringImplementation.java
Added:
tuscany/branches/sca-java-1.x/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SpringImplementation.java
URL:
http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SpringImplementation.java?rev=772155&view=auto
==============================================================================
---
tuscany/branches/sca-java-1.x/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SpringImplementation.java
(added)
+++
tuscany/branches/sca-java-1.x/modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/SpringImplementation.java
Wed May 6 11:41:49 2009
@@ -0,0 +1,216 @@
+/*
+ * 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.net.URL;
+import java.util.Hashtable;
+import java.util.List;
+
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentType;
+import org.apache.tuscany.sca.assembly.Extensible;
+import org.apache.tuscany.sca.assembly.Implementation;
+import org.apache.tuscany.sca.assembly.Property;
+import org.apache.tuscany.sca.assembly.Reference;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.assembly.builder.ComponentPreProcessor;
+import org.apache.tuscany.sca.assembly.impl.ImplementationImpl;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * Represents a Spring implementation.
+ *
+ * @version $Rev: 511195 $ $Date: 2007-02-24 02:29:46 +0000 (Sat, 24 Feb 2007)
$
+ */
+public class SpringImplementation extends ImplementationImpl implements
Implementation, ComponentPreProcessor, Extensible {
+
+ // The location attribute which points to the Spring application-context
XML file
+ private String location;
+ // The application-context file as a Spring Resource
+ private URL resource;
+ private ComponentType componentType;
+ // Mapping of Services to Beans
+ private Hashtable<String, SpringBeanElement> serviceMap;
+ // Mapping of property names to Java class
+ private Hashtable<String, Class> propertyMap;
+ // List of unresolved bean property references
+ private Hashtable<String, Reference> unresolvedBeanRef;
+
+ public SpringImplementation() {
+ this.location = null;
+ this.resource = null;
+ setUnresolved(true);
+ serviceMap = new Hashtable<String, SpringBeanElement>();
+ propertyMap = new Hashtable<String, Class>();
+ unresolvedBeanRef = new Hashtable<String, Reference>();
+ } // end method SpringImplementation
+
+ /* Returns the location attribute for this Spring implementation */
+ public String getLocation() {
+ return location;
+ }
+
+ /**
+ * Sets the location attribute for this Spring implementation
+ * location - a URI to the Spring application-context file
+ */
+ public void setLocation(String location) {
+ this.location = location;
+ return;
+ }
+
+ public void setResource(URL resource) {
+ this.resource = resource;
+ }
+
+ public URL getResource() {
+ return resource;
+ }
+
+ /*
+ * Returns the componentType for this Spring implementation
+ */
+ public ComponentType getComponentType() {
+ return componentType;
+ }
+
+ /*
+ * Sets the componentType for this Spring implementation
+ */
+ public void setComponentType(ComponentType componentType) {
+ this.componentType = componentType;
+ }
+
+ @Override
+ public List<Service> getServices() {
+ return componentType.getServices();
+ }
+
+ @Override
+ public List<Reference> getReferences() {
+ return componentType.getReferences();
+ }
+
+ @Override
+ public List<Property> getProperties() {
+ return componentType.getProperties();
+ }
+
+ /**
+ * Returns the Spring Bean which implements a particular service
+ * @param service the service
+ * @return the bean which implements the service, as a SpringBeanElement
+ */
+ public SpringBeanElement getBeanFromService(Service service) {
+ SpringBeanElement theBean = serviceMap.get(service.getName());
+ return theBean;
+ }
+
+ /**
+ * Sets the mapping from a service to the Spring Bean that implements the
service
+ * @param service the service
+ * @param theBean a SpringBeanElement for the Bean implementing the service
+ */
+ public void setBeanForService(Service service, SpringBeanElement theBean) {
+ serviceMap.put(service.getName(), theBean);
+ }
+
+ /**
+ * Add a mapping from a SCA property name to a Java class for the property
+ * @param propertyName
+ * @param propertyClass
+ */
+ public void setPropertyClass(String propertyName, Class propertyClass) {
+ if (propertyName == null || propertyClass == null)
+ return;
+ propertyMap.put(propertyName, propertyClass);
+ return;
+ } // end method setPropertyClass
+
+ /**
+ * Gets the Java Class for an SCA property
+ * @param propertyName - the property name
+ * @return - a Class object for the type of the property
+ */
+ public Class getPropertyClass(String propertyName) {
+ return propertyMap.get(propertyName);
+ } // end method getPropertyClass
+
+ public void setUnresolvedBeanRef(String refName, Reference reference) {
+ if (refName == null || reference == null)
+ return;
+ unresolvedBeanRef.put(refName, reference);
+ return;
+ } // end method setUnresolvedBeanRef
+
+ public Reference getUnresolvedBeanRef(String refName) {
+ return unresolvedBeanRef.get(refName);
+ } // end method getUnresolvedBeanRef
+
+
+ /**
+ * Use preProcess to validate and map the references and properties
dynamically
+ */
+ public void preProcess(Component component) {
+ if (!(component instanceof RuntimeComponent))
+ return;
+
+ RuntimeComponent rtc = (RuntimeComponent) component;
+
+ for (Reference reference : rtc.getReferences()) {
+ if (unresolvedBeanRef.containsKey(reference.getName())) {
+ Reference ref = unresolvedBeanRef.get(reference.getName());
+ componentType.getReferences().add(
+ createReference(reference,
ref.getInterfaceContract()));
+ unresolvedBeanRef.remove(reference.getName());
+ }
+ }
+
+ for (Property property : rtc.getProperties()) {
+ if (unresolvedBeanRef.containsKey(property.getName())) {
+
componentType.getProperties().add(createProperty(property));
+ this.setPropertyClass(property.getName(),
property.getClass());
+ unresolvedBeanRef.remove(property.getName());
+ }
+ }
+ }
+
+ protected Reference createReference(Reference reference, InterfaceContract
interfaze) {
+ Reference newReference;
+ try {
+ newReference = (Reference)reference.clone();
+ if (newReference.getInterfaceContract() == null)
+ newReference.setInterfaceContract(interfaze);
+ } catch (CloneNotSupportedException e) {
+ throw new AssertionError(e); // should not ever happen
+ }
+ return newReference;
+ }
+
+ protected Property createProperty(Property property) {
+ Property newProperty;
+ try {
+ newProperty = (Property)property.clone();
+ } catch (CloneNotSupportedException e) {
+ throw new AssertionError(e); // should not ever happen
+ }
+ return newProperty;
+ }
+}
