/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Emil Ong
*/
package com.caucho.jaxb.mapping;
import com.caucho.jaxb.JAXBContextImpl;
import com.caucho.util.L10N;
import org.w3c.dom.Node;
import static javax.xml.XMLConstants.*;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.UnmarshalException;
import javax.xml.bind.annotation.XmlElementRef;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.caucho.jaxb.accessor.Accessor;
import com.caucho.jaxb.property.ArrayProperty;
import com.caucho.jaxb.property.ListProperty;
import com.caucho.jaxb.property.MultiProperty;
import com.caucho.jaxb.property.Property;
import com.caucho.jaxb.skeleton.ClassSkeleton;
public class ElementRefMapping extends XmlMapping {
private static final L10N L = new L10N(ElementRefMapping.class);
public ElementRefMapping(JAXBContextImpl context, Accessor accessor)
{
super(context, accessor);
}
// XXX this method probably shouldn't have side effects
public void putQNames(Map<QName,XmlMapping> map)
throws JAXBException
{
Class cl = _accessor.getType();
// XXX process this
XmlElementRef elementRef = _accessor.getAnnotation(XmlElementRef.class);
if (Collection.class.isAssignableFrom(cl)) {
if (_accessor.getGenericType() instanceof ParameterizedType) {
ParameterizedType ptype =
(ParameterizedType) _accessor.getGenericType();
Type[] args = ptype.getActualTypeArguments();
if (args.length != 1)
throw new JAXBException(L.l("Collections annotated with @XmlElementRef must be parameterized: {0}", _accessor.getName()));
else if (args[0] instanceof Class)
cl = (Class) args[0];
else
throw new JAXBException(L.l("Unknown type {0} on field or property {1}", args[0], _accessor.getName()));
}
else
throw new JAXBException(L.l("Collections annotated with @XmlElementRef must be parameterized: {0}", _accessor.getName()));
}
else if (cl.isArray())
cl = cl.getComponentType();
List<ClassSkeleton> skeletons = _context.getRootElements(cl);
if (skeletons.size() == 0)
throw new JAXBException(L.l("The type ({0}) of field {1} is unknown to this context", cl, _accessor.getName()));
Map<QName,Property> qnameToPropertyMap = new HashMap<QName,Property>();
Map<Class,Property> classToPropertyMap = new HashMap<Class,Property>();
for (int i = 0; i < skeletons.size(); i++) {
ClassSkeleton skeleton = skeletons.get(i);
map.put(skeleton.getElementName(), this);
QName qname = skeleton.getElementName();
Property property = _context.createProperty(skeleton.getType());
qnameToPropertyMap.put(qname, property);
classToPropertyMap.put(skeleton.getType(), property);
}
_property = new MultiProperty(qnameToPropertyMap, classToPropertyMap);
if (List.class.isAssignableFrom(_accessor.getType()))
_property = new ListProperty(_property);
else if (_accessor.getType().isArray()) {
Class cType = _accessor.getType().getComponentType();
_property = ArrayProperty.createArrayProperty(_property, cType);
}
}
public void generateSchema(XMLStreamWriter out)
throws JAXBException, XMLStreamException
{
out.writeEmptyElement(XML_SCHEMA_PREFIX, "element",
W3C_XML_SCHEMA_NS_URI);
XmlElementRef elementRef = _accessor.getAnnotation(XmlElementRef.class);
if (_property.getMaxOccurs() != null)
out.writeAttribute("maxOccurs", _property.getMaxOccurs());
// XXX
out.writeAttribute("ref", "XXX");
}
public QName getQName(Object obj)
throws JAXBException
{
if (obj instanceof JAXBElement) {
JAXBElement element = (JAXBElement) obj;
return element.getName();
}
else {
ClassSkeleton skeleton = _context.findSkeletonForObject(obj);
if (skeleton == null || skeleton.getElementName() == null)
throw new JAXBException(L.l("Cannot find root element name for object {0}", obj));
return skeleton.getElementName();
}
}
}