From 62d55709374e7c299f720aa9066f8b3dcb315ac0 Mon Sep 17 00:00:00 2001 From: antelder Date: Mon, 18 Jul 2011 10:21:06 +0000 Subject: Create a branch for beta3 git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1147804 13f79535-47bb-0310-9956-ffa450edef68 --- .../local/LocalSCAReferenceBindingProvider.java | 127 +++++++++++++++++++++ 1 file changed, 127 insertions(+) create mode 100644 sca-java-2.x/branches/2.0-Beta3/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalSCAReferenceBindingProvider.java (limited to 'sca-java-2.x/branches/2.0-Beta3/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalSCAReferenceBindingProvider.java') diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalSCAReferenceBindingProvider.java b/sca-java-2.x/branches/2.0-Beta3/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalSCAReferenceBindingProvider.java new file mode 100644 index 0000000000..f04b6aeb4c --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta3/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/LocalSCAReferenceBindingProvider.java @@ -0,0 +1,127 @@ +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.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.Mediator; +import org.apache.tuscany.sca.interfacedef.Compatibility; +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.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.ServiceUnavailableException; + +public class LocalSCAReferenceBindingProvider implements EndpointReferenceAsyncProvider { + private RuntimeEndpointReference endpointReference; + + private InterfaceContractMapper interfaceContractMapper; + private ExtensionPointRegistry extensionPoints; + private Mediator mediator; + + public LocalSCAReferenceBindingProvider(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; + } + + @Override + public InterfaceContract getBindingInterfaceContract() { + RuntimeEndpoint endpoint = (RuntimeEndpoint) endpointReference.getTargetEndpoint(); + if (endpoint != null) { + return endpoint.getComponentTypeServiceInterfaceContract(); + } else { + return endpointReference.getComponentTypeReferenceInterfaceContract(); + } + } + + @Override + public Invoker createInvoker(Operation operation) { + Invoker result = 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; + } + } + // 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, mediator, passByValue, endpointReference, extensionPoints); + } + } + + 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; + } + + @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