diff options
Diffstat (limited to 'sandbox/mobile-android/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java')
| -rw-r--r-- | sandbox/mobile-android/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/sandbox/mobile-android/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java b/sandbox/mobile-android/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java new file mode 100644 index 0000000000..05d1d71558 --- /dev/null +++ b/sandbox/mobile-android/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/processor/DataBindingJavaInterfaceProcessor.java @@ -0,0 +1,191 @@ +/*
+ * 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.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
+import org.apache.tuscany.sca.databinding.annotation.DataBinding;
+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.JavaOperation;
+import org.apache.tuscany.sca.interfacedef.java.introspect.JavaInterfaceVisitor;
+
+/**
+ * The databinding annotation processor for java interfaces
+ *
+ * @version $Rev: 639350 $ $Date: 2008-03-20 08:43:46 -0800 (Thu, 20 Mar 2008) $
+ */
+public class DataBindingJavaInterfaceProcessor implements JavaInterfaceVisitor {
+ private DataBindingExtensionPoint dataBindingRegistry;
+
+ public DataBindingJavaInterfaceProcessor(DataBindingExtensionPoint dataBindingRegistry) {
+ super();
+ this.dataBindingRegistry = dataBindingRegistry;
+ }
+
+ 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());
+ 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, method.getParameterAnnotations()[i]);
+ 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, method.getAnnotations());
+ }
+ for (org.apache.tuscany.sca.interfacedef.DataType<?> d : operation.getFaultTypes()) {
+ if (d.getDataBinding() == null) {
+ d.setDataBinding(dataBindingId);
+ }
+ // TODO: Handle exceptions
+ dataBindingRegistry.introspectType(d, method.getAnnotations(), true);
+ }
+
+ // JIRA: TUSCANY-842
+ if (operation.getDataBinding() == null) {
+ assignOperationDataBinding(operation);
+ }
+
+ // FIXME: Do we want to heuristically check the wrapper style?
+ // introspectWrapperStyle(operation);
+ }
+ }
+
+ /*
+ * 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 void assignOperationDataBinding(Operation operation) {
+
+ String nonDefaultDataBindingName = null;
+
+ // 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());
+ opDataTypes.addAll(operation.getFaultTypes());
+
+ for (DataType<?> d : opDataTypes) {
+ if (d != null) {
+ String dataBinding = d.getDataBinding();
+ // Assumes JavaBeans DB is default
+ if (dataBinding != null && !dataBinding.equals(JavaBeansDataBinding.NAME)
+ && !dataBinding.equals(SimpleJavaDataBinding.NAME)) {
+ if (nonDefaultDataBindingName != null) {
+ if (!nonDefaultDataBindingName.equals(dataBinding)) {
+ // We've seen two different non-default DBs, e.g. SDO and JAXB
+ // so unset the string and break out of the loop
+ nonDefaultDataBindingName = null;
+ break;
+ } else {
+ continue;
+ }
+ } else {
+ nonDefaultDataBindingName = dataBinding;
+ }
+ }
+ }
+ }
+
+ // We have a DB worthy of promoting to operation level.
+ if (nonDefaultDataBindingName != null) {
+ operation.setDataBinding(nonDefaultDataBindingName);
+ }
+ }
+}
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