diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire')
3 files changed, 0 insertions, 384 deletions
diff --git a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java b/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java deleted file mode 100644 index 90b6f24872..0000000000 --- a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java +++ /dev/null @@ -1,194 +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.assembly.ComponentReference; -import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint; -import org.apache.tuscany.sca.databinding.Mediator; -import org.apache.tuscany.sca.interfacedef.DataType; -import org.apache.tuscany.sca.interfacedef.FaultExceptionMapper; -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.RuntimeWire; -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; - private DataBindingExtensionPoint dataBindings; - private FaultExceptionMapper faultExceptionMapper; - - public DataBindingRuntimeWireProcessor(Mediator mediator, - DataBindingExtensionPoint dataBindings, - FaultExceptionMapper faultExceptionMapper) { - super(); - this.mediator = mediator; - this.dataBindings = dataBindings; - this.faultExceptionMapper = faultExceptionMapper; - } - - 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); - } - - public void process(RuntimeWire wire) { - InterfaceContract sourceContract = wire.getEndpointReference().getInterfaceContract(); - InterfaceContract targetContract = wire.getEndpoint().getInterfaceContract(); - if (targetContract == null) { - targetContract = sourceContract; - } - - if (!sourceContract.getInterface().isRemotable()) { - return; - } - List<InvocationChain> chains = wire.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(wire, 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 = - (wire.getEndpointReference().getReference() instanceof ComponentReference) ? Phase.REFERENCE_INTERFACE - : Phase.SERVICE_INTERFACE; - chain.addInterceptor(phase, interceptor); - } - } - - } - - /** - * 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; - } - -} diff --git a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java b/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java deleted file mode 100644 index 679897b59b..0000000000 --- a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java +++ /dev/null @@ -1,109 +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.lang.reflect.InvocationTargetException; -import java.util.HashMap; -import java.util.Map; - -import org.apache.tuscany.sca.databinding.Mediator; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl; -import org.apache.tuscany.sca.interfacedef.util.FaultException; -import org.apache.tuscany.sca.interfacedef.util.XMLType; -import org.apache.tuscany.sca.invocation.DataExchangeSemantics; -import org.apache.tuscany.sca.invocation.Interceptor; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.invocation.Message; -import org.apache.tuscany.sca.runtime.RuntimeWire; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * An interceptor to transform data across databindings on the wire - * - * @version $Rev$ $Date$ - */ -public class DataTransformationInterceptor implements Interceptor, DataExchangeSemantics { - private Invoker next; - - private Operation sourceOperation; - - private Operation targetOperation; - private RuntimeWire wire; - private Mediator mediator; - - public DataTransformationInterceptor(RuntimeWire wire, - Operation sourceOperation, - Operation targetOperation, - Mediator mediator) { - super(); - this.sourceOperation = sourceOperation; - this.targetOperation = targetOperation; - this.mediator = mediator; - this.wire = wire; - } - - public Invoker getNext() { - return next; - } - - public Message invoke(Message msg) { - Map<String, Object> metadata = new HashMap<String, Object>(); - metadata.put("wire", wire); - Object input = mediator.mediateInput(msg.getBody(), sourceOperation, targetOperation, metadata); - msg.setBody(input); - Message resultMsg = next.invoke(msg); - Object result = resultMsg.getBody(); - if (sourceOperation.isNonBlocking()) { - // Not to reset the message body - return resultMsg; - } - - - if (resultMsg.isFault()) { - Object transformedFault = null; - if ((result instanceof Exception) && !(result instanceof RuntimeException)) { - transformedFault = mediator.mediateFault(result, sourceOperation, targetOperation, metadata); - if (transformedFault != result) { - resultMsg.setFaultBody(transformedFault); - } - } - // - // Leave it to another layer to actually throw the Exception which constitutes - // the message body. We don't throw it here. - // - } else { - assert !(result instanceof Throwable) : "Expected messages that are not throwable " + result; - Object newResult = mediator.mediateOutput(result, sourceOperation, targetOperation, metadata); - resultMsg.setBody(newResult); - } - - return resultMsg; - } - - public void setNext(Invoker next) { - this.next = next; - } - - public boolean allowsPassByReference() { - return true; - } - -} diff --git a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java b/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java deleted file mode 100644 index a4466bfd1a..0000000000 --- a/tags/java/sca/2.0-M3-RC4/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java +++ /dev/null @@ -1,81 +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 org.apache.tuscany.sca.databinding.Mediator; -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.Invoker; -import org.apache.tuscany.sca.invocation.Message; -import org.oasisopen.sca.ServiceRuntimeException; - -/** - * Implementation of an interceptor that enforces pass-by-value semantics - * on operation invocations by copying the operation input and output data. - * - * @version $Rev$ $Date$ - */ -public class PassByValueInterceptor implements Interceptor { - - private Mediator mediator; - private Operation operation; - private Invoker nextInvoker; - private InvocationChain chain; - - /** - * Constructs a new PassByValueInterceptor. - * @param dataBindings databinding extension point - * @param operation the intercepted operation - */ - public PassByValueInterceptor(Mediator mediator, InvocationChain chain, Operation operation) { - this.mediator = mediator; - this.chain = chain; - this.operation = operation; - } - - public Message invoke(Message msg) { - if (chain.allowsPassByReference()) { - return nextInvoker.invoke(msg); - } - - msg.setBody(mediator.copyInput(msg.getBody(), operation)); - - Message resultMsg = nextInvoker.invoke(msg); - - if (!resultMsg.isFault() && operation.getOutputType() != null) { - resultMsg.setBody(mediator.copyOutput(resultMsg.getBody(), operation)); - } - - if (resultMsg.isFault()) { - resultMsg.setFaultBody(mediator.copyFault(resultMsg.getBody(), operation)); - } - return resultMsg; - } - - public Invoker getNext() { - return nextInvoker; - } - - public void setNext(Invoker next) { - this.nextInvoker = next; - } - -} |