/*
* 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.databinding.sdo;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.databinding.TransformationContext;
import org.apache.tuscany.sca.databinding.WrapperHandler;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
import org.apache.tuscany.sca.interfacedef.util.TypeInfo;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
import commonj.sdo.DataObject;
import commonj.sdo.Property;
import commonj.sdo.Sequence;
import commonj.sdo.Type;
import commonj.sdo.helper.DataFactory;
import commonj.sdo.helper.HelperContext;
import commonj.sdo.helper.XMLDocument;
import commonj.sdo.helper.XSDHelper;
/**
* SDO Wrapper Handler
*/
public class SDOWrapperHandler implements WrapperHandler<Object> {
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#create(ElementInfo, TransformationContext)
*/
public Object create(ElementInfo element, TransformationContext context) {
DataObject wrapper = null;
HelperContext helperContext = SDOContextHelper.getHelperContext(context);
Type sdoType = getSDOType(helperContext, element);
if (sdoType != null) {
DataFactory dataFactory = helperContext.getDataFactory();
return dataFactory.create(sdoType);
}
return null;
}
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#setChild(java.lang.Object, int, ElementInfo,
* java.lang.Object)
*/
public void setChild(Object wrapper, int i, ElementInfo childElement, Object value) {
DataObject wrapperDO =
(wrapper instanceof XMLDocument) ? ((XMLDocument)wrapper).getRootObject() : (DataObject)wrapper;
wrapperDO.set(i, value);
}
@SuppressWarnings("unchecked")
public List getChildren(Object wrapper, List<ElementInfo> childElements, TransformationContext context) {
DataObject wrapperDO =
(wrapper instanceof XMLDocument) ? ((XMLDocument)wrapper).getRootObject() : (DataObject)wrapper;
List<Property> properties = wrapperDO.getInstanceProperties();
List<Object> elements = new ArrayList<Object>();
Type type = wrapperDO.getType();
if (type.isSequenced()) {
// Add values in the sequence
Sequence sequence = wrapperDO.getSequence();
for (int i = 0; i < sequence.size(); i++) {
// Skip mixed text
if (sequence.getProperty(i) != null) {
elements.add(sequence.getValue(i));
}
}
} else {
for (Property p : properties) {
Object child = wrapperDO.get(p);
if (p.isMany()) {
for (Object c : (Collection<?>)child) {
elements.add(c);
}
} else {
elements.add(child);
}
}
}
return elements;
}
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#getWrapperType(org.apache.tuscany.sca.interfacedef.util.ElementInfo, List, org.apache.tuscany.sca.databinding.TransformationContext)
*/
public DataType getWrapperType(ElementInfo element, List<ElementInfo> childElements, TransformationContext context) {
// FIXME: [rfeng] Temporarily disable the wrapping support for SDO to work around a few issues
// in the WSDL-less story: https://issues.apache.org/jira/browse/TUSCANY-1713
// if (true) {
// return null;
// }
HelperContext helperContext = SDOContextHelper.getHelperContext(context);
Type sdoType = getSDOType(helperContext, element);
if (sdoType != null) {
// Check if child elements matches
for (ElementInfo child : childElements) {
if (sdoType.getProperty(child.getQName().getLocalPart()) == null) {
return null;
}
}
Class physical = sdoType.getInstanceClass();
DataType<XMLType> wrapperType =
new DataTypeImpl<XMLType>(SDODataBinding.NAME, physical, new XMLType(element));
return wrapperType;
} else {
return null;
}
}
/**
* @param helperContext
* @param element
* @return
*/
private Type getSDOType(HelperContext helperContext, ElementInfo element) {
XSDHelper xsdHelper = helperContext.getXSDHelper();
Type sdoType = null;
Property prop =
xsdHelper.getGlobalProperty(element.getQName().getNamespaceURI(), element.getQName().getLocalPart(), true);
if (prop != null) {
sdoType = prop.getType();
} else {
TypeInfo type = element.getType();
QName typeName = type != null ? type.getQName() : null;
if (typeName != null) {
sdoType = helperContext.getTypeHelper().getType(typeName.getNamespaceURI(), typeName.getLocalPart());
}
}
return sdoType;
}
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#isInstance(java.lang.Object, org.apache.tuscany.sca.interfacedef.util.ElementInfo, java.util.List, org.apache.tuscany.sca.databinding.TransformationContext)
*/
public boolean isInstance(Object wrapper,
ElementInfo element,
List<ElementInfo> childElements,
TransformationContext context) {
HelperContext helperContext = SDOContextHelper.getHelperContext(context);
Type sdoType = getSDOType(helperContext, element);
if (sdoType != null) {
return sdoType.isInstance(wrapper);
}
return false;
}
}