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diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java b/sca-java-2.x/tags/2.0.1-RC1/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java
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+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java
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+/*
+ * 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.client.impl;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Component;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.assembly.ComponentService;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.assembly.Multiplicity;
+import org.apache.tuscany.sca.assembly.Service;
+import org.apache.tuscany.sca.context.CompositeContext;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory;
+import org.apache.tuscany.sca.core.invocation.ProxyFactory;
+import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;
+import org.apache.tuscany.sca.runtime.ContributionDescription;
+import org.apache.tuscany.sca.runtime.DomainRegistry;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
+import org.oasisopen.sca.NoSuchDomainException;
+import org.oasisopen.sca.NoSuchServiceException;
+import org.oasisopen.sca.ServiceRuntimeException;
+
+/**
+ * An InvocationHandler for invoking services where the component is not running locally.
+ * It has two modes of operation for the cases where there either is or is not an existing
+ * Tuscany runtime locally. The SCAClient API has no close so when there is no existing
+ * local runtime then one must be created and destroyed for each service invocation.
+ */
+public class RemoteServiceInvocationHandler implements InvocationHandler {
+
+ private String domainURI;
+ private String serviceName;
+ public Class<?> serviceInterface;
+
+ private ExtensionPointRegistry extensionsRegistry;
+ private DomainRegistry domainRegistry;
+
+ private InvocationHandler handler;
+ private boolean reuse;
+
+ /**
+ * Constructor for when there is an existing Tuscany runtime for the domain
+ */
+ public RemoteServiceInvocationHandler(ExtensionPointRegistry extensionsRegistry, DomainRegistry domainRegistry, String serviceName, Class<?> serviceInterface) {
+ this.extensionsRegistry = extensionsRegistry;
+ this.domainRegistry = domainRegistry;
+ this.domainURI = domainRegistry.getDomainURI();
+ this.serviceName = serviceName;
+ this.serviceInterface = serviceInterface;
+ this.reuse = true;
+ }
+
+ /**
+ * Constructor for when there is no existing Tuscany runtime for the domain
+ * @param endpointRegistry2
+ * @param extensionPointRegistry
+ * @throws NoSuchServiceException
+ */
+ public RemoteServiceInvocationHandler(ExtensionPointRegistry extensionsRegistry, DomainRegistry domainRegistry, String domainURI, String serviceName, Class<?> serviceInterface) throws NoSuchDomainException, NoSuchServiceException {
+ this.extensionsRegistry = extensionsRegistry;
+ this.domainRegistry = domainRegistry;
+ this.domainURI = domainURI;
+ this.serviceName = serviceName;
+ this.serviceInterface = serviceInterface;
+ this.reuse = false;
+ if (serviceInterface == null) {
+ getHandler();
+ }
+ }
+
+ public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+ try {
+
+ return getHandler().invoke(proxy, method, args);
+
+ } finally {
+ if (!reuse) {
+ extensionsRegistry.stop();
+ extensionsRegistry = null;
+ handler = null;
+ }
+ }
+ }
+
+ private InvocationHandler getHandler() throws NoSuchDomainException, NoSuchServiceException {
+ if (handler == null) {
+ if (extensionsRegistry == null) {
+ extensionsRegistry = RuntimeUtils.createExtensionPointRegistry();
+ }
+ if (domainRegistry == null) {
+ domainRegistry = RuntimeUtils.getClientEndpointRegistry(extensionsRegistry, domainURI);
+ }
+
+ FactoryExtensionPoint factories = extensionsRegistry.getExtensionPoint(FactoryExtensionPoint.class);
+ AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class);
+ JavaInterfaceFactory javaInterfaceFactory = factories.getFactory(JavaInterfaceFactory.class);
+ ProxyFactory proxyFactory = new ExtensibleProxyFactory(extensionsRegistry.getExtensionPoint(ProxyFactoryExtensionPoint.class));
+
+ CompositeContext compositeContext = new CompositeContext(extensionsRegistry, domainRegistry, null, domainURI, null, null);
+
+ EndpointFinder endpointFinder = RuntimeUtils.getEndpointFinder(extensionsRegistry);
+ Endpoint endpoint = endpointFinder.findEndpoint(domainRegistry, serviceName);
+
+ if (serviceInterface == null) {
+ try {
+ findInterface(endpoint);
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ RuntimeEndpointReference epr;
+ try {
+ epr = createEndpointReference(javaInterfaceFactory, compositeContext, assemblyFactory, endpoint, serviceInterface);
+ } catch (Exception e) {
+ throw new ServiceRuntimeException(e);
+ }
+
+ this.handler = Proxy.getInvocationHandler(proxyFactory.createProxy(serviceInterface, epr));
+ }
+ return handler;
+ }
+
+ private void findInterface(Endpoint endpoint) throws MalformedURLException, ClassNotFoundException {
+ Interface iface = endpoint.getService().getInterfaceContract().getInterface();
+ if (iface instanceof JavaInterface) {
+ String curi = domainRegistry.getContainingCompositesContributionURI(endpoint.getComponent().getName());
+ if (curi != null) {
+ ContributionDescription ic = domainRegistry.getInstalledContribution(curi);
+ ClassLoader cl = new URLClassLoader(new URL[]{new URL(ic.getURL())});
+ serviceInterface = cl.loadClass(((JavaInterface)iface).getName());
+ }
+ }
+ }
+
+ private RuntimeEndpointReference createEndpointReference(JavaInterfaceFactory javaInterfaceFactory, CompositeContext compositeContext, AssemblyFactory assemblyFactory, Endpoint endpoint, Class<?> businessInterface) throws CloneNotSupportedException, InvalidInterfaceException {
+ Component component = endpoint.getComponent();
+ ComponentService service = endpoint.getService();
+ ComponentReference componentReference = assemblyFactory.createComponentReference();
+ componentReference.setName("$sca.client$." + service.getName());
+
+ componentReference.setCallback(service.getCallback());
+ componentReference.getTargets().add(service);
+ componentReference.getPolicySets().addAll(service.getPolicySets());
+ componentReference.getRequiredIntents().addAll(service.getRequiredIntents());
+ componentReference.getBindings().add(endpoint.getBinding());
+
+ InterfaceContract interfaceContract = service.getInterfaceContract();
+ Service componentTypeService = service.getService();
+ if (componentTypeService != null && componentTypeService.getInterfaceContract() != null) {
+ interfaceContract = componentTypeService.getInterfaceContract();
+ }
+ interfaceContract = getInterfaceContract(javaInterfaceFactory, interfaceContract, businessInterface);
+ componentReference.setInterfaceContract(interfaceContract);
+ componentReference.setMultiplicity(Multiplicity.ONE_ONE);
+ // component.getReferences().add(componentReference);
+
+ // create endpoint reference
+ EndpointReference endpointReference = assemblyFactory.createEndpointReference();
+ endpointReference.setComponent(component);
+ endpointReference.setReference(componentReference);
+ endpointReference.setBinding(endpoint.getBinding());
+ endpointReference.setUnresolved(false);
+ endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
+
+ endpointReference.setTargetEndpoint(endpoint);
+
+ componentReference.getEndpointReferences().add(endpointReference);
+ ((RuntimeComponentReference)componentReference).setComponent((RuntimeComponent)component);
+ ((RuntimeEndpointReference)endpointReference).bind(compositeContext);
+
+ return (RuntimeEndpointReference) endpointReference;
+ }
+
+ /**
+ * @param interfaceContract
+ * @param businessInterface
+ * @return
+ * @throws CloneNotSupportedException
+ * @throws InvalidInterfaceException
+ */
+ private InterfaceContract getInterfaceContract(JavaInterfaceFactory javaInterfaceFactory, InterfaceContract interfaceContract, Class<?> businessInterface)
+ throws CloneNotSupportedException, InvalidInterfaceException {
+ if (businessInterface == null) {
+ return interfaceContract;
+ }
+ boolean compatible = false;
+ if (interfaceContract != null && interfaceContract.getInterface() != null) {
+ Interface interfaze = interfaceContract.getInterface();
+ if (interfaze instanceof JavaInterface) {
+ Class<?> cls = ((JavaInterface)interfaze).getJavaClass();
+ if (cls != null && businessInterface.isAssignableFrom(cls)) {
+ compatible = true;
+ }
+ }
+ }
+
+ if (!compatible) {
+ // The interface is not assignable from the interface contract
+ interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
+ JavaInterface callInterface = javaInterfaceFactory.createJavaInterface(businessInterface);
+ interfaceContract.setInterface(callInterface);
+ if (callInterface.getCallbackClass() != null) {
+ interfaceContract.setCallbackInterface(javaInterfaceFactory.createJavaInterface(callInterface
+ .getCallbackClass()));
+ }
+ }
+
+ return interfaceContract;
+ }
+
+}