diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-sca-runtime/src/main/java/org/apache/tuscany/sca/binding/local/DefaultLocalSCAReferenceBindingProvider.java b/sca-java-2.x/tags/2.0.1-RC1/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/tags/2.0.1-RC1/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;
+ }
+
+
+}
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