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authorlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2009-11-20 23:53:35 +0000
committerlresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>2009-11-20 23:53:35 +0000
commita3c48da9bb8971497d414f86e352123d95b9c3da (patch)
treefdf0f3636b65946c061c8b2e89d657b488be274e /sca-java-2.x/trunk/modules/core-databinding/src
parentcc7496466097c3cb8e793ebf3e332b025705aaa7 (diff)
Moving 2.x trunk
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@882795 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sca-java-2.x/trunk/modules/core-databinding/src')
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java131
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/WrapperJavaInterfaceProcessor.java126
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java104
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java112
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java270
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java251
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java223
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java103
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java81
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer30
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor19
-rw-r--r--sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeWireProcessor17
12 files changed, 1467 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java
new file mode 100644
index 0000000000..01a3c1813c
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java
@@ -0,0 +1,131 @@
+/*
+ * 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.processor;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
+import org.apache.tuscany.sca.databinding.annotation.DataBinding;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.JavaOperation;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+
+/**
+ * The databinding annotation processor for java interfaces
+ *
+ * @version $Rev$ $Date$
+ */
+public class DataBindingJavaInterfaceProcessor implements JavaInterfaceVisitor {
+ private DataBindingExtensionPoint dataBindingRegistry;
+
+ public DataBindingJavaInterfaceProcessor(ExtensionPointRegistry registry) {
+ super();
+ this.dataBindingRegistry = registry.getExtensionPoint(DataBindingExtensionPoint.class);
+ }
+
+ public void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException {
+ if (!javaInterface.isRemotable()) {
+ return;
+ }
+ List<Operation> operations = javaInterface.getOperations();
+ processInterface(javaInterface, operations);
+ }
+
+ private void processInterface(JavaInterface javaInterface, List<Operation> operations) {
+ Class<?> clazz = javaInterface.getJavaClass();
+ DataBinding dataBinding = clazz.getAnnotation(DataBinding.class);
+ String dataBindingId = null;
+ boolean wrapperStyle = false;
+ if (dataBinding != null) {
+ dataBindingId = dataBinding.value();
+ wrapperStyle = dataBinding.wrapped();
+ }
+
+ Map<String, Operation> opMap = new HashMap<String, Operation>();
+ for (Operation op : javaInterface.getOperations()) {
+ opMap.put(op.getName(), op);
+ // In the case of @WebMethod, the method name can be different from the operation name
+ if (op instanceof JavaOperation) {
+ opMap.put(((JavaOperation)op).getJavaMethod().getName(), op);
+ }
+ if (dataBindingId != null) {
+ op.setDataBinding(dataBindingId);
+ op.setWrapperStyle(wrapperStyle);
+ }
+ }
+ for (Method method : clazz.getMethods()) {
+ if (method.getDeclaringClass() == Object.class) {
+ continue;
+ }
+ Operation operation = opMap.get(method.getName());
+ if (operation == null) { // @WebMethod exclude=true
+ continue;
+ }
+ DataBinding methodDataBinding = clazz.getAnnotation(DataBinding.class);
+ if (methodDataBinding == null) {
+ methodDataBinding = dataBinding;
+ }
+ dataBindingId = null;
+ wrapperStyle = false;
+ if (dataBinding != null) {
+ dataBindingId = dataBinding.value();
+ wrapperStyle = dataBinding.wrapped();
+ operation.setDataBinding(dataBindingId);
+ operation.setWrapperStyle(wrapperStyle);
+ }
+
+ // FIXME: We need a better way to identify simple java types
+ int i = 0;
+ for (org.apache.tuscany.sca.interfacedef.DataType<?> d : operation.getInputType().getLogical()) {
+ if (d.getDataBinding() == null) {
+ d.setDataBinding(dataBindingId);
+ }
+ for (Annotation a : method.getParameterAnnotations()[i]) {
+ if (a.annotationType() == org.apache.tuscany.sca.databinding.annotation.DataType.class) {
+ String value = ((org.apache.tuscany.sca.databinding.annotation.DataType)a).value();
+ d.setDataBinding(value);
+ }
+ }
+ dataBindingRegistry.introspectType(d, operation);
+ i++;
+ }
+ if (operation.getOutputType() != null) {
+ DataType<?> d = operation.getOutputType();
+ if (d.getDataBinding() == null) {
+ d.setDataBinding(dataBindingId);
+ }
+ org.apache.tuscany.sca.databinding.annotation.DataType dt =
+ method.getAnnotation(org.apache.tuscany.sca.databinding.annotation.DataType.class);
+ if (dt != null) {
+ d.setDataBinding(dt.value());
+ }
+ dataBindingRegistry.introspectType(d, operation);
+ }
+ }
+ }
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/WrapperJavaInterfaceProcessor.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/WrapperJavaInterfaceProcessor.java
new file mode 100644
index 0000000000..a5526ab031
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/WrapperJavaInterfaceProcessor.java
@@ -0,0 +1,126 @@
+/*
+ * 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.processor;
+
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.databinding.javabeans.JavaBeansDataBinding;
+import org.apache.tuscany.sca.databinding.javabeans.SimpleJavaDataBinding;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
+
+/**
+ * The databinding annotation processor for java interfaces
+ *
+ * @version $Rev$ $Date$
+ */
+public class WrapperJavaInterfaceProcessor implements JavaInterfaceVisitor {
+ private static final String JAXB_DATABINDING = "javax.xml.bind.JAXBElement";
+ private DataBindingExtensionPoint dataBindingRegistry;
+
+ public WrapperJavaInterfaceProcessor(ExtensionPointRegistry registry) {
+ super();
+ this.dataBindingRegistry = registry.getExtensionPoint(DataBindingExtensionPoint.class);
+ }
+
+ public void visitInterface(JavaInterface javaInterface) throws InvalidInterfaceException {
+ if (!javaInterface.isRemotable()) {
+ return;
+ }
+ for (Operation operation : javaInterface.getOperations()) {
+ WrapperInfo wrapper = operation.getWrapper();
+ if (wrapper == null) {
+ continue;
+ }
+ // JIRA: TUSCANY-842
+ String db = wrapper.getDataBinding();
+ if (db == null || JAXB_DATABINDING.equals(db)) {
+ db = assignOperationDataBinding(operation);
+ }
+
+ // Introspect the wrapper data type
+ org.apache.tuscany.sca.databinding.DataBinding dbObj = dataBindingRegistry.getDataBinding(db);
+ WrapperHandler handler = dbObj == null ? null : dbObj.getWrapperHandler();
+ if (handler != null) {
+ wrapper.setInputWrapperType(handler.getWrapperType(operation, true));
+ wrapper.setOutputWrapperType(handler.getWrapperType(operation, false));
+ }
+ if (dbObj != null && handler == null) {
+ // To avoid JAXB wrapper bean generation
+ wrapper.setInputWrapperType(null);
+ wrapper.setOutputWrapperType(null);
+ }
+ }
+ }
+
+ /*
+ * Assigns an operation DB if one of the input types, output type, fault types has a non-default DB.
+ * However, if two of the input types, output type, fault types have two different non-default DBs
+ * ( e.g. SDO and JAXB), then we do nothing to the operation DB.
+ *
+ * The method logic assumes the JavaBeans DataBinding is the default
+ */
+ private String assignOperationDataBinding(Operation operation) {
+
+ Set<String> dbs = new HashSet<String>();
+
+ // Can't use DataType<?> since operation.getInputType() returns: DataType<List<DataType>>
+ List<DataType> opDataTypes = new LinkedList<DataType>();
+
+ opDataTypes.addAll(operation.getInputType().getLogical());
+ opDataTypes.add(operation.getOutputType());
+ for (DataType<DataType> ft : operation.getFaultTypes()) {
+ opDataTypes.add(ft.getLogical());
+ }
+
+ for (DataType<?> d : opDataTypes) {
+ if (d != null) {
+ String dataBinding = d.getDataBinding();
+ if ("java:array".equals(dataBinding)) {
+ dataBinding = ((DataType)d.getLogical()).getDataBinding();
+ }
+ if (dataBinding != null) {
+ dbs.add(dataBinding);
+ }
+ }
+ }
+
+ dbs.remove(JavaBeansDataBinding.NAME);
+ dbs.remove(SimpleJavaDataBinding.NAME);
+
+ if (dbs.size() == 1) {
+ String db = dbs.iterator().next();
+ operation.getWrapper().setDataBinding(db);
+ return db;
+ } else {
+ return operation.getWrapper().getDataBinding();
+ }
+ }
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java
new file mode 100644
index 0000000000..7146f0fa36
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java
@@ -0,0 +1,104 @@
+/*
+ * 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.transformers;
+
+import java.lang.reflect.Array;
+
+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.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sca.interfacedef.DataType;
+
+/**
+ * This is a special transformer to transform the output from one IDL to the
+ * other one
+ *
+ * @version $Rev$ $Date$
+ */
+public class Array2ArrayTransformer extends BaseTransformer<Object, Object> implements PullTransformer<Object, Object> {
+
+ protected Mediator mediator;
+
+ public Array2ArrayTransformer(ExtensionPointRegistry registry) {
+ super();
+ this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class);
+ }
+
+ @Override
+ public String getSourceDataBinding() {
+ return "java:array";
+ }
+
+ @Override
+ public String getTargetDataBinding() {
+ return "java:array";
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getSourceType()
+ */
+ @Override
+ protected Class<Object> getSourceType() {
+ return Object.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getTargetType()
+ */
+ @Override
+ protected Class<Object> getTargetType() {
+ return Object.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.Transformer#getWeight()
+ */
+ @Override
+ public int getWeight() {
+ return 10;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Object transform(Object array, TransformationContext context) {
+ try {
+ if (array == null) {
+ return null;
+ }
+ DataType<DataType> sourceType = context.getSourceDataType();
+ DataType<DataType> targetType = context.getTargetDataType();
+ int length = Array.getLength(array);
+ Object targetArray = Array.newInstance(targetType.getPhysical().getComponentType(), length);
+ for (int i = 0; i < length; i++) {
+ Object sourceItem = Array.get(array, i);
+ Object targetItem =
+ mediator.mediate(sourceItem, sourceType.getLogical(), targetType.getLogical(), context
+ .getMetadata());
+ Array.set(targetArray, i, targetItem);
+ }
+ return targetArray;
+ } catch (Exception e) {
+ throw new TransformationException(e);
+ }
+ }
+
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java
new file mode 100644
index 0000000000..71e2a24def
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java
@@ -0,0 +1,112 @@
+/*
+ * 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.transformers;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.databinding.DataBinding;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.FaultExceptionMapper;
+
+/**
+ * This is a special transformer to transform the exception from one IDL to the
+ * other one
+ *
+ * @version $Rev$ $Date$
+ */
+public class Exception2ExceptionTransformer extends BaseTransformer<Throwable, Throwable> implements
+ PullTransformer<Throwable, Throwable> {
+
+ protected Mediator mediator;
+ protected FaultExceptionMapper faultExceptionMapper;
+
+ public Exception2ExceptionTransformer(ExtensionPointRegistry registry) {
+ super();
+ UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class);
+ this.mediator = utilityExtensionPoint.getUtility(Mediator.class);
+ this.faultExceptionMapper = utilityExtensionPoint.getUtility(FaultExceptionMapper.class);
+ }
+
+ protected Exception2ExceptionTransformer(Mediator mediator, FaultExceptionMapper faultExceptionMapper) {
+ super();
+ this.mediator = mediator;
+ this.faultExceptionMapper = faultExceptionMapper;
+ }
+
+ @Override
+ public String getSourceDataBinding() {
+ return DataBinding.IDL_FAULT;
+ }
+
+ @Override
+ public String getTargetDataBinding() {
+ return DataBinding.IDL_FAULT;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getSourceType()
+ */
+ @Override
+ protected Class<Throwable> getSourceType() {
+ return Throwable.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getTargetType()
+ */
+ @Override
+ protected Class<Throwable> getTargetType() {
+ return Throwable.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.Transformer#getWeight()
+ */
+ @Override
+ public int getWeight() {
+ return 10000;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Throwable transform(Throwable source, TransformationContext context) {
+ DataType<DataType> sourceType = context.getSourceDataType();
+
+ DataType<DataType> targetType = context.getTargetDataType();
+
+ Object sourceFaultInfo = faultExceptionMapper.getFaultInfo(source, sourceType.getLogical().getPhysical(), context.getSourceOperation());
+ Object targetFaultInfo =
+ mediator.mediate(sourceFaultInfo, sourceType.getLogical(), targetType.getLogical(), context.getMetadata());
+
+ Throwable targetException =
+ faultExceptionMapper.wrapFaultInfo(targetType, source.getMessage(), targetFaultInfo, source.getCause(), context.getTargetOperation());
+
+ // FIXME
+ return targetException == null ? source : targetException;
+
+ }
+
+ public void setFaultExceptionMapper(FaultExceptionMapper faultExceptionMapper) {
+ this.faultExceptionMapper = faultExceptionMapper;
+ }
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java
new file mode 100644
index 0000000000..3422713bb3
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java
@@ -0,0 +1,270 @@
+/*
+ * 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.transformers;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.databinding.DataBinding;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
+import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+/**
+ * This is a special transformer to transform the input from one IDL to the
+ * other one
+ *
+ * @version $Rev$ $Date$
+ */
+public class Input2InputTransformer extends BaseTransformer<Object[], Object[]> implements
+ PullTransformer<Object[], Object[]> {
+ protected Mediator mediator;
+
+ public Input2InputTransformer(ExtensionPointRegistry registry) {
+ super();
+ this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class);
+ }
+
+ @Override
+ public String getSourceDataBinding() {
+ return DataBinding.IDL_INPUT;
+ }
+
+ @Override
+ public String getTargetDataBinding() {
+ return DataBinding.IDL_INPUT;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getSourceType()
+ */
+ @Override
+ protected Class<Object[]> getSourceType() {
+ return Object[].class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getTargetType()
+ */
+ @Override
+ protected Class<Object[]> getTargetType() {
+ return Object[].class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.Transformer#getWeight()
+ */
+ @Override
+ public int getWeight() {
+ return 10000;
+ }
+
+ /**
+ * Match the structure of the wrapper element. If it matches, then we can do
+ * wrapper to wrapper transformation. Otherwise, we do child to child.
+ * @param w1
+ * @param w2
+ * @return
+ */
+ private boolean matches(WrapperInfo w1, WrapperInfo w2) {
+ if (w1 == null || w2 == null) {
+ return false;
+ }
+ if (!w1.getInputWrapperElement().equals(w2.getInputWrapperElement())) {
+ return false;
+ }
+
+ // Compare the child elements
+ List<ElementInfo> list1 = w1.getInputChildElements();
+ List<ElementInfo> list2 = w2.getInputChildElements();
+ if (list1.size() != list2.size()) {
+ return false;
+ }
+ // FXIME: [rfeng] At this point, the J2W generates local elments under the namespace
+ // of the interface instead of "". We only compare the local parts only to work around
+ // the namespace mismatch
+ for (int i = 0; i < list1.size(); i++) {
+ String n1 = list1.get(i).getQName().getLocalPart();
+ String n2 = list2.get(i).getQName().getLocalPart();
+ if (!n1.equals(n2)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Object[] transform(Object[] source, TransformationContext context) {
+ // Check if the source operation is wrapped
+ DataType<List<DataType>> sourceType = context.getSourceDataType();
+ Operation sourceOp = context.getSourceOperation();
+ boolean sourceWrapped = sourceOp != null && sourceOp.isWrapperStyle() && sourceOp.getWrapper() != null;
+ boolean sourceBare = sourceOp != null && !sourceOp.isWrapperStyle() && sourceOp.getWrapper() == null;
+
+ // Find the wrapper handler for source data
+ WrapperHandler sourceWrapperHandler = null;
+ String sourceDataBinding = getDataBinding(sourceOp);
+ sourceWrapperHandler = getWrapperHandler(sourceDataBinding, sourceWrapped);
+
+ // Check if the target operation is wrapped
+ DataType<List<DataType>> targetType = context.getTargetDataType();
+ Operation targetOp = (Operation)context.getTargetOperation();
+ boolean targetWrapped = targetOp != null && targetOp.isWrapperStyle() && targetOp.getWrapper() != null;
+ boolean targetBare = targetOp != null && !targetOp.isWrapperStyle() && targetOp.getWrapper() == null;
+
+ // Find the wrapper handler for target data
+ WrapperHandler targetWrapperHandler = null;
+ String targetDataBinding = getDataBinding(targetOp);
+ targetWrapperHandler = getWrapperHandler(targetDataBinding, targetWrapped);
+
+ if ((!sourceWrapped && !sourceBare) && targetWrapped) {
+ // Unwrapped --> Wrapped
+ WrapperInfo wrapper = targetOp.getWrapper();
+ // ElementInfo wrapperElement = wrapper.getInputWrapperElement();
+
+ // Class<?> targetWrapperClass = wrapper != null ? wrapper.getInputWrapperClass() : null;
+
+ if (source == null) {
+ // Empty child elements
+ Object targetWrapper = targetWrapperHandler.create(targetOp, true);
+ return new Object[] {targetWrapper};
+ }
+
+ // If the source can be wrapped, wrapped it first
+ if (sourceWrapperHandler != null) {
+ WrapperInfo sourceWrapperInfo = sourceOp.getWrapper();
+ DataType sourceWrapperType = sourceWrapperInfo != null ? sourceWrapperInfo.getInputWrapperType() : null;
+
+ // We only do wrapper to wrapper transformation if the source has a wrapper and both sides
+ // match by XML structure
+ if (sourceWrapperType != null && matches(sourceOp.getWrapper(), targetOp.getWrapper())) {
+ Class<?> sourceWrapperClass = sourceWrapperType.getPhysical();
+
+ // Create the source wrapper
+ Object sourceWrapper = sourceWrapperHandler.create(sourceOp, true);
+
+ // Populate the source wrapper
+ if (sourceWrapper != null) {
+ sourceWrapperHandler.setChildren(sourceWrapper,
+ source,
+ sourceOp,
+ true);
+
+ // Transform the data from source wrapper to target wrapper
+ Object targetWrapper =
+ mediator.mediate(sourceWrapper, sourceWrapperType, targetType.getLogical().get(0), context
+ .getMetadata());
+ return new Object[] {targetWrapper};
+ }
+ }
+ }
+ // Fall back to child by child transformation
+ Object targetWrapper = targetWrapperHandler.create(targetOp, true);
+ List<DataType> argTypes = wrapper.getUnwrappedInputType().getLogical();
+ Object[] targetChildren = new Object[source.length];
+ for (int i = 0; i < source.length; i++) {
+ // ElementInfo argElement = wrapper.getInputChildElements().get(i);
+ DataType<XMLType> argType = argTypes.get(i);
+ targetChildren[i] =
+ mediator.mediate(source[i], sourceType.getLogical().get(i), argType, context.getMetadata());
+ }
+ targetWrapperHandler.setChildren(targetWrapper,
+ targetChildren,
+ targetOp,
+ true);
+ return new Object[] {targetWrapper};
+
+ } else if (sourceWrapped && (!targetWrapped && !targetBare)) {
+ // Wrapped to Unwrapped
+ Object sourceWrapper = source[0];
+ Object[] target = null;
+
+ // List<ElementInfo> childElements = sourceOp.getWrapper().getInputChildElements();
+ if (targetWrapperHandler != null) {
+ // ElementInfo wrapperElement = sourceOp.getWrapper().getInputWrapperElement();
+ // FIXME: This is a workaround for the wsdless support as it passes in child elements
+ // under the wrapper that only matches by position
+ if (sourceWrapperHandler.isInstance(sourceWrapper, sourceOp, true)) {
+
+ WrapperInfo targetWrapperInfo = targetOp.getWrapper();
+ DataType targetWrapperType =
+ targetWrapperInfo != null ? targetWrapperInfo.getInputWrapperType() : null;
+ if (targetWrapperType != null && matches(sourceOp.getWrapper(), targetOp.getWrapper())) {
+ Object targetWrapper =
+ mediator.mediate(sourceWrapper, sourceType.getLogical().get(0), targetWrapperType, context
+ .getMetadata());
+ target = targetWrapperHandler.getChildren(targetWrapper, targetOp, true).toArray();
+ return target;
+ }
+ }
+ }
+ Object[] sourceChildren = sourceWrapperHandler.getChildren(sourceWrapper, sourceOp, true).toArray();
+ target = new Object[sourceChildren.length];
+ for (int i = 0; i < sourceChildren.length; i++) {
+ DataType<XMLType> childType = sourceOp.getWrapper().getUnwrappedInputType().getLogical().get(i);
+ target[i] =
+ mediator.mediate(sourceChildren[i], childType, targetType.getLogical().get(i), context
+ .getMetadata());
+ }
+ return target;
+ } else {
+ // Assuming wrapper to wrapper conversion can be handled here as well
+ Object[] newArgs = new Object[source.length];
+ for (int i = 0; i < source.length; i++) {
+ Object child =
+ mediator.mediate(source[i], sourceType.getLogical().get(i), targetType.getLogical().get(i), context
+ .getMetadata());
+ newArgs[i] = child;
+ }
+ return newArgs;
+ }
+ }
+
+ private WrapperHandler getWrapperHandler(String dataBindingId, boolean required) {
+ WrapperHandler wrapperHandler = null;
+ if (dataBindingId != null) {
+ DataBinding dataBinding = mediator.getDataBindings().getDataBinding(dataBindingId);
+ wrapperHandler = dataBinding == null ? null : dataBinding.getWrapperHandler();
+ }
+ if (wrapperHandler == null && required) {
+ throw new TransformationException("No wrapper handler is provided for databinding: " + dataBindingId);
+ }
+ return wrapperHandler;
+ }
+
+ private String getDataBinding(Operation operation) {
+ WrapperInfo wrapper = operation.getWrapper();
+ if (wrapper != null) {
+ return wrapper.getDataBinding();
+ } else {
+ return null;
+ }
+ }
+
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java
new file mode 100644
index 0000000000..08442134b9
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java
@@ -0,0 +1,251 @@
+/*
+ * 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.transformers;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.databinding.DataBinding;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.TransformationException;
+import org.apache.tuscany.sca.databinding.WrapperHandler;
+import org.apache.tuscany.sca.databinding.impl.BaseTransformer;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
+import org.apache.tuscany.sca.interfacedef.util.WrapperInfo;
+import org.apache.tuscany.sca.interfacedef.util.XMLType;
+
+/**
+ * This is a special transformer to transform the output from one IDL to the
+ * other one
+ *
+ * @version $Rev$ $Date$
+ */
+public class Output2OutputTransformer extends BaseTransformer<Object, Object> implements
+ PullTransformer<Object, Object> {
+
+ protected Mediator mediator;
+
+ /**
+ * @param wrapperHandler
+ */
+ public Output2OutputTransformer(ExtensionPointRegistry registry) {
+ super();
+ this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class);
+ }
+
+ @Override
+ public String getSourceDataBinding() {
+ return DataBinding.IDL_OUTPUT;
+ }
+
+ @Override
+ public String getTargetDataBinding() {
+ return DataBinding.IDL_OUTPUT;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getSourceType()
+ */
+ @Override
+ protected Class<Object> getSourceType() {
+ return Object.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getTargetType()
+ */
+ @Override
+ protected Class<Object> getTargetType() {
+ return Object.class;
+ }
+
+ /**
+ * @see org.apache.tuscany.sca.databinding.Transformer#getWeight()
+ */
+ @Override
+ public int getWeight() {
+ return 10;
+ }
+
+ private String getDataBinding(Operation operation) {
+ WrapperInfo wrapper = operation.getWrapper();
+ if (wrapper != null) {
+ return wrapper.getDataBinding();
+ } else {
+ return null;
+ }
+ }
+
+ private WrapperHandler getWrapperHandler(String dataBindingId, boolean required) {
+ WrapperHandler wrapperHandler = null;
+ if (dataBindingId != null) {
+ DataBinding dataBinding = mediator.getDataBindings().getDataBinding(dataBindingId);
+ wrapperHandler = dataBinding == null ? null : dataBinding.getWrapperHandler();
+ }
+ if (wrapperHandler == null && required) {
+ throw new TransformationException("No wrapper handler is provided for databinding: " + dataBindingId);
+ }
+ return wrapperHandler;
+ }
+
+ /**
+ * Match the structure of the wrapper element. If it matches, then we can do
+ * wrapper to wrapper transformation. Otherwise, we do child to child.
+ * @param w1
+ * @param w2
+ * @return
+ */
+ private boolean matches(WrapperInfo w1, WrapperInfo w2) {
+ if (w1 == null || w2 == null) {
+ return false;
+ }
+ if (!w1.getOutputWrapperElement().equals(w2.getOutputWrapperElement())) {
+ return false;
+ }
+
+ // Compare the child elements
+ List<ElementInfo> list1 = w1.getOutputChildElements();
+ List<ElementInfo> list2 = w2.getOutputChildElements();
+ if (list1.size() != list2.size()) {
+ return false;
+ }
+ // FXIME: [rfeng] At this point, the J2W generates local elments under the namespace
+ // of the interface instead of "". We only compare the local parts only to work around
+ // the namespace mismatch
+ for (int i = 0; i < list1.size(); i++) {
+ String n1 = list1.get(i).getQName().getLocalPart();
+ String n2 = list2.get(i).getQName().getLocalPart();
+ if (!n1.equals(n2)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Object transform(Object response, TransformationContext context) {
+ try {
+ DataType<DataType> sourceType = context.getSourceDataType();
+ Operation sourceOp = context.getSourceOperation();
+ boolean sourceWrapped = sourceOp != null && sourceOp.isWrapperStyle() && sourceOp.getWrapper() != null;
+ boolean sourceBare = sourceOp != null && !sourceOp.isWrapperStyle() && sourceOp.getWrapper() == null;
+
+ WrapperHandler sourceWrapperHandler = null;
+ String sourceDataBinding = getDataBinding(sourceOp);
+ sourceWrapperHandler = getWrapperHandler(sourceDataBinding, sourceWrapped);
+
+ DataType<DataType> targetType = context.getTargetDataType();
+ Operation targetOp = (Operation)context.getTargetOperation();
+ boolean targetWrapped = targetOp != null && targetOp.isWrapperStyle() && targetOp.getWrapper() != null;
+ boolean targetBare = targetOp != null && !targetOp.isWrapperStyle() && targetOp.getWrapper() == null;
+
+ WrapperHandler targetWrapperHandler = null;
+ String targetDataBinding = getDataBinding(targetOp);
+ targetWrapperHandler = getWrapperHandler(targetDataBinding, targetWrapped);
+
+ if ((!sourceWrapped &&!sourceBare) && targetWrapped) {
+ // Unwrapped --> Wrapped
+ WrapperInfo wrapper = targetOp.getWrapper();
+ ElementInfo wrapperElement = wrapper.getOutputWrapperElement();
+ List<ElementInfo> childElements = wrapper.getOutputChildElements();
+ Class<?> targetWrapperClass = wrapper != null ? wrapper.getOutputWrapperClass() : null;
+
+ // If the source can be wrapped, wrapped it first
+ if (sourceWrapperHandler != null) {
+ WrapperInfo sourceWrapperInfo = sourceOp.getWrapper();
+ DataType sourceWrapperType =
+ sourceWrapperInfo != null ? sourceWrapperInfo.getOutputWrapperType() : null;
+
+ if (sourceWrapperType != null && matches(sourceOp.getWrapper(), targetOp.getWrapper())) {
+ Class<?> sourceWrapperClass = sourceWrapperType.getPhysical();
+
+ Object sourceWrapper = sourceWrapperHandler.create(sourceOp, false);
+ if (sourceWrapper != null) {
+ if (!childElements.isEmpty()) {
+ // Set the return value
+ sourceWrapperHandler.setChildren(sourceWrapper,
+ new Object[] {response},
+ sourceOp,
+ false);
+ }
+ Object targetWrapper =
+ mediator.mediate(sourceWrapper, sourceWrapperType, targetType.getLogical(), context
+ .getMetadata());
+ return targetWrapper;
+ }
+ }
+ }
+ Object targetWrapper = targetWrapperHandler.create(targetOp, false);
+
+ if (childElements.isEmpty()) {
+ // void output
+ return targetWrapper;
+ }
+
+ DataType<XMLType> argType = wrapper.getUnwrappedOutputType();
+ Object child = response;
+ child = mediator.mediate(response, sourceType.getLogical(), argType, context.getMetadata());
+ targetWrapperHandler.setChildren(targetWrapper, new Object[] {child}, targetOp, false);
+ return targetWrapper;
+ } else if (sourceWrapped && (!targetWrapped && !targetBare)) {
+ // Wrapped to Unwrapped
+ Object sourceWrapper = response;
+ List<ElementInfo> childElements = sourceOp.getWrapper().getOutputChildElements();
+ if (childElements.isEmpty()) {
+ // The void output
+ return null;
+ }
+ if (targetWrapperHandler != null) {
+ ElementInfo wrapperElement = sourceOp.getWrapper().getOutputWrapperElement();
+
+ // FIXME: This is a workaround for the wsdless support as it passes in child elements
+ // under the wrapper that only matches by position
+ if (sourceWrapperHandler.isInstance(sourceWrapper, sourceOp, false)) {
+
+ WrapperInfo targetWrapperInfo = targetOp.getWrapper();
+ DataType targetWrapperType =
+ targetWrapperInfo != null ? targetWrapperInfo.getOutputWrapperType() : null;
+
+ if (targetWrapperType != null && matches(sourceOp.getWrapper(), targetOp.getWrapper())) {
+ Object targetWrapper =
+ mediator.mediate(sourceWrapper, sourceType.getLogical(), targetWrapperType, context
+ .getMetadata());
+ return targetWrapperHandler.getChildren(targetWrapper, targetOp, false).get(0);
+ }
+ }
+ }
+ Object child = sourceWrapperHandler.getChildren(sourceWrapper, sourceOp, false).get(0);
+ DataType<?> childType = sourceOp.getWrapper().getUnwrappedOutputType();
+ return mediator.mediate(child, childType, targetType.getLogical(), context.getMetadata());
+ } else {
+ // FIXME: Do we want to handle wrapped to wrapped?
+ return mediator.mediate(response, sourceType.getLogical(), targetType.getLogical(), context
+ .getMetadata());
+ }
+ } catch (Exception e) {
+ throw new TransformationException(e);
+ }
+ }
+
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java
new file mode 100644
index 0000000000..d4018e22a7
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataBindingRuntimeWireProcessor.java
@@ -0,0 +1,223 @@
+/*
+ * 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);
+ }
+ }
+
+ }
+
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java
new file mode 100644
index 0000000000..17efe33321
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/DataTransformationInterceptor.java
@@ -0,0 +1,103 @@
+/*
+ * 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.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.interfacedef.Operation;
+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.Invocable;
+
+/**
+ * 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 Invocable invocable;
+ private Mediator mediator;
+
+ public DataTransformationInterceptor(Invocable invocable,
+ Operation sourceOperation,
+ Operation targetOperation,
+ Mediator mediator) {
+ super();
+ this.sourceOperation = sourceOperation;
+ this.targetOperation = targetOperation;
+ this.mediator = mediator;
+ this.invocable = invocable;
+ }
+
+ public Invoker getNext() {
+ return next;
+ }
+
+ public Message invoke(Message msg) {
+ Map<String, Object> metadata = new HashMap<String, Object>();
+ metadata.put(Invocable.class.getName(), invocable);
+ 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/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java
new file mode 100644
index 0000000000..a4466bfd1a
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/wire/PassByValueInterceptor.java
@@ -0,0 +1,81 @@
+/*
+ * 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;
+ }
+
+}
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer
new file mode 100644
index 0000000000..a1f5d37ff3
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.databinding.PullTransformer
@@ -0,0 +1,30 @@
+# 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.
+
+# Implementation classes for special transformers
+#
+# Java array --> Java array
+org.apache.tuscany.sca.core.databinding.transformers.Array2ArrayTransformer;source=java:array,target=java:array,weight=10,public=false
+# Java exception --> Java exception
+org.apache.tuscany.sca.core.databinding.transformers.Exception2ExceptionTransformer;source=idl:fault,target=idl:fault,weight=10,public=false
+# Input to Input
+org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer;source=idl:input,target=idl:input,weight=10,public=false
+# Output to Output
+org.apache.tuscany.sca.core.databinding.transformers.Output2OutputTransformer;source=idl:output,target=idl:output,weight=10,public=false
+# Group to Group
+org.apache.tuscany.sca.databinding.impl.Group2GroupTransformer;source=databinding:group,target=databinding:group,weight=10,public=false
+
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor
new file mode 100644
index 0000000000..875814fccc
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor
@@ -0,0 +1,19 @@
+# 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.
+
+org.apache.tuscany.sca.core.databinding.processor.DataBindingJavaInterfaceProcessor;ranking=300
+org.apache.tuscany.sca.core.databinding.processor.WrapperJavaInterfaceProcessor;ranking=200
diff --git a/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeWireProcessor b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeWireProcessor
new file mode 100644
index 0000000000..dfd86a3a53
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/core-databinding/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.RuntimeWireProcessor
@@ -0,0 +1,17 @@
+# 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.
+org.apache.tuscany.sca.core.databinding.wire.DataBindingRuntimeWireProcessor