/*
* 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.embedded.impl;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.assembly.CompositeService;
import org.apache.tuscany.sca.assembly.SCABinding;
import org.apache.tuscany.sca.assembly.SCABindingFactory;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
import org.apache.tuscany.sca.assembly.xml.Constants;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.service.ContributionService;
import org.apache.tuscany.sca.core.assembly.ActivationException;
import org.apache.tuscany.sca.core.assembly.CompositeActivator;
import org.apache.tuscany.sca.core.context.ServiceReferenceImpl;
import org.apache.tuscany.sca.definitions.SCADefinitions;
import org.apache.tuscany.sca.host.embedded.SCADomain;
import org.apache.tuscany.sca.host.embedded.management.ComponentManager;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentContext;
import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
import org.osoa.sca.CallableReference;
import org.osoa.sca.ServiceReference;
import org.osoa.sca.ServiceRuntimeException;
/**
* An SCA domain facade implementation.
*
* @version $Rev: 608074 $ $Date: 2008-01-02 10:35:24 +0000 (Wed, 02 Jan 2008) $
*/
public class EmbeddedSCADomain extends SCADomain {
private String uri;
private Composite domainComposite;
private ReallySmallRuntime runtime;
private ComponentManagerImpl componentManager = new ComponentManagerImpl(this);
/**
* Constructs a new domain facade.
*
* @param runtimeClassLoader
* @param domainURI
*/
public EmbeddedSCADomain(ClassLoader runtimeClassLoader,
String domainURI) {
this.uri = domainURI;
// Create a runtime
runtime = new ReallySmallRuntime(runtimeClassLoader);
}
public void start() throws ActivationException {
// Start the runtime
runtime.start();
// Create an in-memory domain level composite
AssemblyFactory assemblyFactory = runtime.getAssemblyFactory();
domainComposite = assemblyFactory.createComposite();
domainComposite.setName(new QName(Constants.SCA10_NS, "domain"));
domainComposite.setURI(uri);
getCompositeActivator().setDomainComposite(domainComposite);
}
public void stop() throws ActivationException {
// Stop the runtime
runtime.stop();
// Cleanup
domainComposite = null;
}
public void updateContributionSCADefinitions(List<SCADefinitions> scaDefns) {
runtime.updateSCADefinitions(scaDefns);
}
public void buildComposite(Composite composite) throws CompositeBuilderException {
runtime.buildComposite(composite);
}
public ContributionService getContributionService() {
return runtime.getContributionService();
}
public CompositeBuilder getCompositeBuilder() {
return runtime.getCompositeBuilder();
}
public CompositeActivator getCompositeActivator() {
return runtime.getCompositeActivator();
}
public Composite getDomainComposite() {
return domainComposite;
}
@Override
public ComponentManager getComponentManager() {
return componentManager;
}
@Override
public void close() {
super.close();
}
@Override
public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException {
return (R)runtime.getProxyFactory().cast(target);
}
@Override
public <B> B getService(Class<B> businessInterface, String serviceName) {
ServiceReference<B> serviceReference = getServiceReference(businessInterface, serviceName);
if (serviceReference == null) {
throw new ServiceRuntimeException("Service not found: " + serviceName);
}
return serviceReference.getService();
}
private <B> ServiceReference<B> createServiceReference(Class<B> businessInterface, String targetURI) {
try {
AssemblyFactory assemblyFactory = runtime.getAssemblyFactory();
Composite composite = assemblyFactory.createComposite();
composite.setName(new QName(Constants.SCA10_TUSCANY_NS, "default"));
RuntimeComponent component = (RuntimeComponent)assemblyFactory.createComponent();
component.setName("default");
component.setURI("default");
runtime.getCompositeActivator().configureComponentContext(component);
composite.getComponents().add(component);
RuntimeComponentReference reference = (RuntimeComponentReference)assemblyFactory.createComponentReference();
reference.setName("default");
ModelFactoryExtensionPoint factories =
runtime.getExtensionPointRegistry().getExtensionPoint(ModelFactoryExtensionPoint.class);
JavaInterfaceFactory javaInterfaceFactory = factories.getFactory(JavaInterfaceFactory.class);
InterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
interfaceContract.setInterface(javaInterfaceFactory.createJavaInterface(businessInterface));
reference.setInterfaceContract(interfaceContract);
component.getReferences().add(reference);
reference.setComponent(component);
SCABindingFactory scaBindingFactory = factories.getFactory(SCABindingFactory.class);
SCABinding binding = scaBindingFactory.createSCABinding();
binding.setURI(targetURI);
reference.getBindings().add(binding);
return new ServiceReferenceImpl<B>(businessInterface, component, reference, binding, runtime
.getProxyFactory(), runtime.getCompositeActivator());
} catch (Exception e) {
throw new ServiceRuntimeException(e);
}
}
@Override
public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String name) {
// Extract the component name
String componentName;
String serviceName;
int i = name.indexOf('/');
if (i != -1) {
componentName = name.substring(0, i);
serviceName = name.substring(i + 1);
} else {
componentName = name;
serviceName = null;
}
// Lookup the component in the domain
Component component = componentManager.getComponent(componentName);
if (component == null) {
// The component is not local in the partition, try to create a remote service ref
return createServiceReference(businessInterface, name);
}
RuntimeComponentContext componentContext = null;
// If the component is a composite, then we need to find the
// non-composite component that provides the requested service
if (component.getImplementation() instanceof Composite) {
for (ComponentService componentService : component.getServices()) {
if (serviceName == null || serviceName.equals(componentService.getName())) {
CompositeService compositeService = (CompositeService)componentService.getService();
if (compositeService != null) {
if (serviceName != null) {
serviceName = "$promoted$." + serviceName;
}
componentContext =
((RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext();
return componentContext.createSelfReference(businessInterface, compositeService
.getPromotedService());
}
break;
}
}
// No matching service is found
throw new ServiceRuntimeException("Composite service not found: " + name);
} else {
componentContext = ((RuntimeComponent)component).getComponentContext();
if (serviceName != null) {
return componentContext.createSelfReference(businessInterface, serviceName);
} else {
return componentContext.createSelfReference(businessInterface);
}
}
}
@Override
public String getURI() {
return uri;
}
}