From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001 From: lresende Date: Thu, 26 Sep 2013 20:33:20 +0000 Subject: 2.0 branch for possible maintenance release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68 --- .../DefaultLocalSCAReferenceBindingProvider.java | 224 +++++++++++++++++++++ 1 file changed, 224 insertions(+) create mode 100644 sca-java-2.x/branches/2.0/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java (limited to 'sca-java-2.x/branches/2.0/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java') diff --git a/sca-java-2.x/branches/2.0/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java b/sca-java-2.x/branches/2.0/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java new file mode 100644 index 0000000000..270345fb5f --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java @@ -0,0 +1,224 @@ +/* + * 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.binding.local; + +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.binding.local.LocalSCABindingInvoker; +import org.apache.tuscany.sca.binding.sca.transform.BindingSCATransformer; +import org.apache.tuscany.sca.binding.sca.transform.SameDBCopyTransformer; +import org.apache.tuscany.sca.binding.sca.transform.WSDLMediateTransformer; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.databinding.util.OperationDataBindingHelper; +import org.apache.tuscany.sca.databinding.xml.DOMDataBinding; +import org.apache.tuscany.sca.interfacedef.Compatibility; +import org.apache.tuscany.sca.interfacedef.IncompatibleInterfaceContractException; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterfaceContract; +import org.apache.tuscany.sca.invocation.InvocationChain; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.EndpointReferenceAsyncProvider; +import org.apache.tuscany.sca.provider.SCABindingMapper; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeEndpoint; +import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; +import org.oasisopen.sca.ServiceRuntimeException; +import org.oasisopen.sca.ServiceUnavailableException; + +/** +* +* @version $Rev$ $Date$ +*/ +public class DefaultLocalSCAReferenceBindingProvider implements EndpointReferenceAsyncProvider { + private RuntimeEndpointReference endpointReference; + + protected InterfaceContractMapper interfaceContractMapper; + protected ExtensionPointRegistry extensionPoints; + protected Mediator mediator; + protected InterfaceContract componentTypeRefInterfaceContract; + protected InterfaceContract wsdlBindingInterfaceContract; // Computed lazily + + public DefaultLocalSCAReferenceBindingProvider(ExtensionPointRegistry extensionPoints, RuntimeEndpointReference endpointReference, SCABindingMapper mapper) { + this.extensionPoints = extensionPoints; + UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class); + this.interfaceContractMapper = utilities.getUtility(InterfaceContractMapper.class); + this.mediator = utilities.getUtility(Mediator.class); + + this.endpointReference = endpointReference; + } + + protected String getDataBinding() { + return DOMDataBinding.NAME; + } + + protected InterfaceContract getWSDLBindingInterfaceContract() { + if (this.wsdlBindingInterfaceContract != null) { + return this.wsdlBindingInterfaceContract; + } + + InterfaceContract wsdlInterfaceContract = (WSDLInterfaceContract)endpointReference.getGeneratedWSDLContract(componentTypeRefInterfaceContract); + + // Validation may be unnecessary. This check may already be guaranteed at this point, not sure. + Endpoint target = endpointReference.getTargetEndpoint(); + InterfaceContract targetInterfaceContract = target.getComponentServiceInterfaceContract(); + try { + interfaceContractMapper.checkCompatibility(wsdlInterfaceContract, targetInterfaceContract, + Compatibility.SUBSET, true, false); + } catch (IncompatibleInterfaceContractException exc) { + throw new ServiceRuntimeException(exc); + } + + String dataBinding = getDataBinding(); + + // Clone + try { + wsdlInterfaceContract = (WSDLInterfaceContract)wsdlInterfaceContract.clone(); + } catch (CloneNotSupportedException exc) { + throw new ServiceRuntimeException(exc); + } + + if (wsdlInterfaceContract.getInterface() != null) { + wsdlInterfaceContract.getInterface().resetDataBinding(dataBinding); + } + if (wsdlInterfaceContract.getCallbackInterface() != null) { + wsdlInterfaceContract.getCallbackInterface().resetDataBinding(dataBinding); + } + this.wsdlBindingInterfaceContract = wsdlInterfaceContract; + + return wsdlInterfaceContract; + } + + @Override + public InterfaceContract getBindingInterfaceContract() { + // Since we want to disable DataTransformationInterceptor and handle copy in the binding + this.componentTypeRefInterfaceContract = endpointReference.getComponentTypeReferenceInterfaceContract(); + return componentTypeRefInterfaceContract; + } + + + + @Override + public Invoker createInvoker(Operation operation) { + Invoker result = null; + BindingSCATransformer bindingTransformer = null; + + Endpoint target = endpointReference.getTargetEndpoint(); + if (target != null) { + RuntimeComponentService service = (RuntimeComponentService) target.getService(); + if (service != null) { // not a callback wire + + InvocationChain chain = ((RuntimeEndpoint) target).getInvocationChain(operation); + + boolean passByValue = false; + Operation targetOp = chain.getTargetOperation(); + if (!operation.getInterface().isRemotable()) { + if (interfaceContractMapper.isCompatibleByReference(operation, targetOp, Compatibility.SUBSET)) { + passByValue = false; + } + } else { + Reference ref = endpointReference.getReference().getReference(); + // The spec says both ref and service needs to + // allowsPassByReference + boolean allowsPBR = (endpointReference.getReference().isAllowsPassByReference() || (ref != null && ref.isAllowsPassByReference())) && chain.allowsPassByReference(); + + if (allowsPBR && interfaceContractMapper.isCompatibleByReference(operation, targetOp, Compatibility.SUBSET)) { + passByValue = false; + } else if (interfaceContractMapper.isCompatibleWithoutUnwrapByValue(operation, targetOp, Compatibility.SUBSET)) { + passByValue = true; + } else { + throw new IllegalStateException(); + } + bindingTransformer = getBindingTransformer(operation, targetOp); + } + + // it turns out that the chain source and target operations are + // the same, and are the operation + // from the target, not sure if thats by design or a bug. The + // SCA binding invoker needs to know + // the source and target class loaders so pass in the real + // source operation in the constructor + result = chain == null ? null : new LocalSCABindingInvoker(chain, operation, passByValue, endpointReference, extensionPoints, bindingTransformer); + } + } + + if (result == null) { + throw new ServiceUnavailableException("Unable to create SCA binding invoker for local target " + endpointReference.getComponent().getName() + " reference " + + endpointReference.getReference().getName() + " (bindingURI=" + endpointReference.getBinding().getURI() + " operation=" + operation.getName() + ")"); + } + + return result; + } + + protected BindingSCATransformer getBindingTransformer(Operation sourceOperation, Operation targetOperation) { + boolean differentDataBindings = OperationDataBindingHelper.isTransformationRequired(sourceOperation, targetOperation); + + if (differentDataBindings) { + InterfaceContract bindingInterfaceContract = getWSDLBindingInterfaceContract(); + if (!bindingInterfaceContract.getInterface().isRemotable()) { + throw new IllegalStateException("This method should only have been called for a remotable interface."); + } + Operation wsdlBindingOperation = interfaceContractMapper.map(bindingInterfaceContract.getInterface(), sourceOperation); + return new WSDLMediateTransformer(mediator, sourceOperation, wsdlBindingOperation, targetOperation); + } else { + return new SameDBCopyTransformer(mediator, sourceOperation, targetOperation); + } + + } + + @Override + public boolean supportsOneWayInvocation() { + // Default for Local invocation + return false; + } + + @Override + public boolean supportsNativeAsync() { + return true; + } + + @Override + public void configure() { + // Nothing required for Local invocation + } + + @Override + public void start() { + // Nothing required for Local invocation + } + + @Override + public void stop() { + // Nothing required for Local invocation + } + + /** + * Allows us to replace the delegate EPR with the real EPR so that the local binding + * optimization operates against the correct invocation chains. + */ + public void setEndpointReference(RuntimeEndpointReference endpointReference){ + this.endpointReference = endpointReference; + } + + +} -- cgit v1.2.3