diff options
Diffstat (limited to 'java/sca/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java')
-rw-r--r-- | java/sca/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/java/sca/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java b/java/sca/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java deleted file mode 100644 index d4018e22a7..0000000000 --- a/java/sca/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java +++ /dev/null @@ -1,223 +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.core.databinding.wire; - -import java.util.List; - -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.DataType; -import org.apache.tuscany.sca.interfacedef.InterfaceContract; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Interceptor; -import org.apache.tuscany.sca.invocation.InvocationChain; -import org.apache.tuscany.sca.invocation.Phase; -import org.apache.tuscany.sca.runtime.RuntimeEndpoint; -import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; -import org.apache.tuscany.sca.runtime.RuntimeWireProcessor; - -/** - * This processor is responsible to add an interceptor to invocation chain if - * the source and target operations have different databinding requirements - * - * @version $Rev$ $Date$ - */ -public class DataBindingRuntimeWireProcessor implements RuntimeWireProcessor { - private Mediator mediator; - - public DataBindingRuntimeWireProcessor(ExtensionPointRegistry registry) { - super(); - this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class); - } - - public boolean isTransformationRequired(DataType source, DataType target) { - if (source == null || target == null) { // void return type - return false; - } - if (source == target) { - return false; - } - - // Output type can be null - if (source == null && target == null) { - return false; - } else if (source == null || target == null) { - return true; - } - String sourceDataBinding = source.getDataBinding(); - String targetDataBinding = target.getDataBinding(); - if (sourceDataBinding == targetDataBinding) { - return false; - } - if (sourceDataBinding == null || targetDataBinding == null) { - // TODO: If any of the databinding is null, then no transformation - return false; - } - return !sourceDataBinding.equals(targetDataBinding); - } - - public boolean isTransformationRequired(Operation source, Operation target) { - if (source == target) { - return false; - } - - if (source.isWrapperStyle() != target.isWrapperStyle()) { - return true; - } - - // Check output type - DataType sourceOutputType = source.getOutputType(); - DataType targetOutputType = target.getOutputType(); - - // Note the target output type is now the source for checking - // compatibility - if (isTransformationRequired(targetOutputType, sourceOutputType)) { - return true; - } - - List<DataType> sourceInputType = source.getInputType().getLogical(); - List<DataType> targetInputType = target.getInputType().getLogical(); - - int size = sourceInputType.size(); - if (size != targetInputType.size()) { - // TUSCANY-1682: The wrapper style may have different arguments - return true; - } - for (int i = 0; i < size; i++) { - if (isTransformationRequired(sourceInputType.get(i), targetInputType.get(i))) { - return true; - } - } - - return false; - } - - private boolean isTransformationRequired(InterfaceContract sourceContract, - Operation sourceOperation, - InterfaceContract targetContract, - Operation targetOperation) { - if (targetContract == null) { - targetContract = sourceContract; - } - if (sourceContract == targetContract) { - return false; - } - return isTransformationRequired(sourceOperation, targetOperation); - } - - /** - * FIXME: TUSCANY-2586, temporary work around till the JIRA is fixed to prevent - * the PassByValueInterceptor being used for services when the binding protocol - * doesn't need the copies done. - */ - protected boolean isOnMessage(Operation op) { - return "onMessage".equals(op.getName()); - } - - /** - * Pass-by-value copies are required if the interfaces are remotable unless the - * implementation uses the @AllowsPassByReference annotation. - */ - protected boolean isRemotable(InvocationChain chain, Operation sourceOperation, Operation targetOperation) { - if (!sourceOperation.getInterface().isRemotable()) { - return false; - } - if (!targetOperation.getInterface().isRemotable()) { - return false; - } - return true; - } - - public void process(RuntimeEndpoint endpoint) { - InterfaceContract sourceContract = endpoint.getBindingInterfaceContract(); - InterfaceContract targetContract = endpoint.getComponentTypeServiceInterfaceContract(); - if (targetContract == null) { - targetContract = sourceContract; - } - - if (!sourceContract.getInterface().isRemotable()) { - return; - } - List<InvocationChain> chains = endpoint.getInvocationChains(); - for (InvocationChain chain : chains) { - Operation sourceOperation = chain.getSourceOperation(); - Operation targetOperation = chain.getTargetOperation(); - - Interceptor interceptor = null; - if (isTransformationRequired(sourceContract, sourceOperation, targetContract, targetOperation)) { - // Add the interceptor to the source side because multiple - // references can be wired to the same service - interceptor = - new DataTransformationInterceptor(endpoint, sourceOperation, targetOperation, mediator); - } else { - // assume pass-by-values copies are required if interfaces are remotable and there is no data binding - // transformation, i.e. a transformation will result in a copy so another pass-by-value copy is unnecessary - if (!isOnMessage(targetOperation) && isRemotable(chain, sourceOperation, targetOperation)) { - interceptor = - new PassByValueInterceptor(mediator, chain, targetOperation); - } - } - if (interceptor != null) { - String phase = Phase.SERVICE_INTERFACE; - chain.addInterceptor(phase, interceptor); - } - } - - } - - public void process(RuntimeEndpointReference endpointReference) { - InterfaceContract sourceContract = endpointReference.getComponentTypeReferenceInterfaceContract(); - InterfaceContract targetContract = endpointReference.getBindingInterfaceContract(); - if (targetContract == null) { - targetContract = sourceContract; - } - - if (!sourceContract.getInterface().isRemotable()) { - return; - } - List<InvocationChain> chains = endpointReference.getInvocationChains(); - for (InvocationChain chain : chains) { - Operation sourceOperation = chain.getSourceOperation(); - Operation targetOperation = chain.getTargetOperation(); - - Interceptor interceptor = null; - if (isTransformationRequired(sourceContract, sourceOperation, targetContract, targetOperation)) { - // Add the interceptor to the source side because multiple - // references can be wired to the same service - interceptor = - new DataTransformationInterceptor(endpointReference, sourceOperation, targetOperation, mediator); - } else { - // assume pass-by-values copies are required if interfaces are remotable and there is no data binding - // transformation, i.e. a transformation will result in a copy so another pass-by-value copy is unnecessary - if (!isOnMessage(targetOperation) && isRemotable(chain, sourceOperation, targetOperation)) { - interceptor = - new PassByValueInterceptor(mediator, chain, targetOperation); - } - } - if (interceptor != null) { - String phase = Phase.REFERENCE_INTERFACE; - chain.addInterceptor(phase, interceptor); - } - } - - } - -} |