diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta3-RC2/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta3-RC2/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta3-RC2/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java b/sca-java-2.x/tags/2.0-Beta3-RC2/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java deleted file mode 100644 index 7b75943fc3..0000000000 --- a/sca-java-2.x/tags/2.0-Beta3-RC2/modules/sca-client-impl/src/main/java/org/apache/tuscany/sca/client/impl/RemoteServiceInvocationHandler.java +++ /dev/null @@ -1,250 +0,0 @@ -/* - * 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 java.util.List; - -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.DomainRegistry; -import org.apache.tuscany.sca.runtime.ContributionDescription; -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); - - List<Endpoint> eps = domainRegistry.findEndpoint(serviceName); - if (eps == null || eps.size() < 1) { - throw new NoSuchServiceException(serviceName); - } - Endpoint endpoint = eps.get(0); // TODO: what should be done with multiple endpoints? - - 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; - } - -} |