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Diffstat (limited to '')
6 files changed, 953 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Array2ArrayTransformer.java new file mode 100644 index 0000000000..4997a872ba --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/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.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.BaseTransformer#getSourceType() + */ + @Override + protected Class<Object> getSourceType() { + return Object.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.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/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Collection2CollectionTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Collection2CollectionTransformer.java new file mode 100644 index 0000000000..dcd3c3fda3 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Collection2CollectionTransformer.java @@ -0,0 +1,108 @@ +/* + * 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.Collection; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.BaseTransformer; +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.interfacedef.DataType; + +/** + * This is a special transformer to transform the output from one IDL to the + * other one + * + * @version $Rev$ $Date$ + */ +public class Collection2CollectionTransformer extends BaseTransformer<Collection, Collection> implements + PullTransformer<Collection, Collection> { + + private static final String JAVA_COLLECTION = "java:collection"; + protected Mediator mediator; + + public Collection2CollectionTransformer(ExtensionPointRegistry registry) { + super(); + this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class); + } + + @Override + public String getSourceDataBinding() { + return JAVA_COLLECTION; + } + + @Override + public String getTargetDataBinding() { + return JAVA_COLLECTION; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getSourceType() + */ + @Override + protected Class<Collection> getSourceType() { + return Collection.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getTargetType() + */ + @Override + protected Class<Collection> getTargetType() { + return Collection.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.Transformer#getWeight() + */ + @Override + public int getWeight() { + return 10; + } + + @SuppressWarnings("unchecked") + public Collection transform(Collection sourceCollection, TransformationContext context) { + try { + if (sourceCollection == null) { + return null; + } + DataType<DataType> sourceType = context.getSourceDataType(); + DataType<DataType> targetType = context.getTargetDataType(); + Collection targetCollection = createCollection(targetType.getPhysical()); + for (Object sourceItem : sourceCollection) { + Object targetItem = + mediator.mediate(sourceItem, sourceType.getLogical(), targetType.getLogical(), context + .getMetadata()); + targetCollection.add(targetItem); + } + return targetCollection; + } catch (Exception e) { + throw new TransformationException(e); + } + } + + private Collection createCollection(Class<?> collectionClass) throws Exception { + return (Collection) collectionClass.newInstance(); + } + +} diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java new file mode 100644 index 0000000000..e78610cce0 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/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.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.BaseTransformer#getSourceType() + */ + @Override + protected Class<Throwable> getSourceType() { + return Throwable.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.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/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Input2InputTransformer.java new file mode 100644 index 0000000000..2efc3578bd --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/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.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.BaseTransformer#getSourceType() + */ + @Override + protected Class<Object[]> getSourceType() { + return Object[].class; + } + + /** + * @see org.apache.tuscany.sca.databinding.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/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java new file mode 100644 index 0000000000..5be7ba1da4 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Map2MapTransformer.java @@ -0,0 +1,108 @@ +/* + * 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.Map; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.databinding.BaseTransformer; +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.interfacedef.DataType; + +/** + * This is a special transformer to transform the output from one IDL to the + * other one + * + * @version $Rev$ $Date$ + */ +public class Map2MapTransformer extends BaseTransformer<Map, Map> implements PullTransformer<Map, Map> { + + private static final String JAVA_MAP = "java:map"; + protected Mediator mediator; + + public Map2MapTransformer(ExtensionPointRegistry registry) { + super(); + this.mediator = registry.getExtensionPoint(UtilityExtensionPoint.class).getUtility(Mediator.class); + } + + @Override + public String getSourceDataBinding() { + return JAVA_MAP; + } + + @Override + public String getTargetDataBinding() { + return JAVA_MAP; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getSourceType() + */ + @Override + protected Class<Map> getSourceType() { + return Map.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.BaseTransformer#getTargetType() + */ + @Override + protected Class<Map> getTargetType() { + return Map.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.Transformer#getWeight() + */ + @Override + public int getWeight() { + return 10; + } + + @SuppressWarnings("unchecked") + public Map transform(Map sourceMap, TransformationContext context) { + try { + if (sourceMap == null) { + return null; + } + DataType<DataType> sourceType = context.getSourceDataType(); + DataType<DataType> targetType = context.getTargetDataType(); + Map targetMap = createMap(targetType.getPhysical()); + for (Object sourceItem : sourceMap.entrySet()) { + Map.Entry entry = (Map.Entry)sourceItem; + Object targetValue = + mediator.mediate(entry.getValue(), sourceType.getLogical(), targetType.getLogical(), context + .getMetadata()); + targetMap.put(entry.getKey(), targetValue); + } + return targetMap; + } catch (Exception e) { + throw new TransformationException(e); + } + } + + private Map createMap(Class<?> collectionClass) throws Exception { + return (Map)collectionClass.newInstance(); + } + +} diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java b/sca-java-2.x/branches/2.0-Beta1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Output2OutputTransformer.java new file mode 100644 index 0000000000..71dcc654eb --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/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.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.BaseTransformer#getSourceType() + */ + @Override + protected Class<Object> getSourceType() { + return Object.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.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); + } + } + +} |