From a6a270c9a2e228b446e60aaa2568164a941f6c4d Mon Sep 17 00:00:00 2001 From: antelder Date: Sat, 14 May 2011 07:53:44 +0000 Subject: Move all the code for making service proxys to a seperate helper class. Seems like a lot of this should be provided by the Tuscany SPI somewhere but need to work out the best places git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1102970 13f79535-47bb-0310-9956-ffa450edef68 --- .../org/apache/tuscany/sca/impl/ServiceHelper.java | 182 +++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ServiceHelper.java (limited to 'sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany') diff --git a/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ServiceHelper.java b/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ServiceHelper.java new file mode 100644 index 0000000000..ffb3281ebc --- /dev/null +++ b/sca-java-2.x/trunk/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/ServiceHelper.java @@ -0,0 +1,182 @@ +/* + * 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.impl; + +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.deployment.Deployer; +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.EndpointRegistry; +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.NoSuchServiceException; +import org.oasisopen.sca.ServiceRuntimeException; + +/** + * All the code for creating a service proxy in this helper class as it feels like + * it doesn't all belong in the node but i can't see where to refactor it to yet. + * (perhaps its just the remote proxy bit that needs to go somewhere else?) + */ +public class ServiceHelper { + + public static T getService(Class interfaze, String serviceURI, EndpointRegistry endpointRegistry, ExtensionPointRegistry extensionPointRegistry, Deployer deployer) throws NoSuchServiceException { + + List endpoints = endpointRegistry.findEndpoint(serviceURI); + if (endpoints.size() < 1) { + throw new NoSuchServiceException(serviceURI); + } + + String serviceName = null; + if (serviceURI.contains("/")) { + int i = serviceURI.indexOf("/"); + if (i < serviceURI.length() - 1) { + serviceName = serviceURI.substring(i + 1); + } + } + + Endpoint ep = endpoints.get(0); + if (((RuntimeComponent)ep.getComponent()).getComponentContext() != null) { + return ((RuntimeComponent)ep.getComponent()).getServiceReference(interfaze, serviceName).getService(); + } else { + return getRemoteProxy(interfaze, ep, endpointRegistry, extensionPointRegistry, deployer); + } + } + + private static T getRemoteProxy(Class serviceInterface, Endpoint endpoint, EndpointRegistry endpointRegistry, ExtensionPointRegistry extensionPointRegistry, Deployer deployer) throws NoSuchServiceException { + FactoryExtensionPoint factories = extensionPointRegistry.getExtensionPoint(FactoryExtensionPoint.class); + AssemblyFactory assemblyFactory = factories.getFactory(AssemblyFactory.class); + JavaInterfaceFactory javaInterfaceFactory = factories.getFactory(JavaInterfaceFactory.class); + ProxyFactory proxyFactory = + new ExtensibleProxyFactory(extensionPointRegistry.getExtensionPoint(ProxyFactoryExtensionPoint.class)); + + CompositeContext compositeContext = + new CompositeContext(extensionPointRegistry, endpointRegistry, null, null, null, + deployer.getSystemDefinitions()); + + RuntimeEndpointReference epr; + try { + epr = + createEndpointReference(javaInterfaceFactory, + compositeContext, + assemblyFactory, + endpoint, + serviceInterface); + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + + return proxyFactory.createProxy(serviceInterface, epr); + } + + private static 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; + } + + private static 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; + } +} -- cgit v1.2.3