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/*
* 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.List;
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 {
// Set the data types regardless in case the
// user overrides the remotable status in the SCDL
//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();
}
for (Operation op : javaInterface.getOperations()) {
JavaOperation operation = (JavaOperation) op;
// In the case of @WebMethod, the method name can be different from the operation name
if (dataBindingId != null) {
op.setDataBinding(dataBindingId);
op.setInputWrapperStyle(wrapperStyle);
op.setOutputWrapperStyle(wrapperStyle);
}
Method method = operation.getJavaMethod();
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.setInputWrapperStyle(wrapperStyle);
operation.setOutputWrapperStyle(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) {
for ( org.apache.tuscany.sca.interfacedef.DataType<?> d : operation.getOutputType().getLogical()) {
if ( d != null ) {
// The DataType is null for void operations
if ( d.getDataBinding() == null ) {
d.setDataBinding(dataBindingId);
}
dataBindingRegistry.introspectType(d, operation);
}
}
org.apache.tuscany.sca.databinding.annotation.DataType dt =
method.getAnnotation(org.apache.tuscany.sca.databinding.annotation.DataType.class);
if (dt != null) {
operation.getOutputType().getLogical().get(0).setDataBinding(dt.value());
}
}
}
}
}
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