/*
* 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 Adam Megacz
*/
package com.caucho.jaxb.property;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import com.caucho.jaxb.BinderImpl;
import com.caucho.jaxb.JAXBUtil;
import com.caucho.jaxb.NodeIterator;
import com.caucho.jaxb.mapping.Namer;
import com.caucho.util.L10N;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
/**
* a Collection Property
*/
public class CollectionProperty extends IterableProperty {
public static final L10N L = new L10N(CollectionProperty.class);
public CollectionProperty(Property componentProperty)
{
_componentProperty = componentProperty;
}
public Object read(Unmarshaller u, XMLStreamReader in, Object previous)
throws IOException, XMLStreamException, JAXBException
{
Collection collection = (Collection) previous;
if (collection == null)
collection = createCollection();
collection.add(_componentProperty.read(u, in, null));
return collection;
}
public Object bindFrom(BinderImpl binder, NodeIterator node, Object previous)
throws IOException, JAXBException
{
Node child = node.getNode();
Collection collection = (Collection) previous;
collection.add(_componentProperty.bindFrom(binder, node, null));
return collection;
}
public void write(Marshaller m, XMLStreamWriter out,
Object value, Namer namer)
throws IOException, XMLStreamException, JAXBException
{
if (value != null) {
validateType(value);
Collection collection = (Collection) value;
for (Object o : collection)
_componentProperty.write(m, out, o, namer);
}
}
public Node bindTo(BinderImpl binder, Node node,
Object value, Namer namer)
throws IOException, JAXBException
{
if (value != null) {
validateType(value);
Collection collection = (Collection) value;
Node child = node.getFirstChild();
for (Object o : collection) {
if (child != null) {
// try to reuse as many of the child nodes as possible
Node newNode = _componentProperty.bindTo(binder, child, o, namer);
if (newNode != child) {
node.replaceChild(child, newNode);
binder.invalidate(child);
}
child = child.getNextSibling();
node = JAXBUtil.skipIgnorableNodes(node);
}
else {
QName qname = namer.getQName(value);
Node newNode = JAXBUtil.elementFromQName(qname, node);
newNode = _componentProperty.bindTo(binder, newNode, o, namer);
node.appendChild(newNode);
}
}
}
return node;
}
public QName getSchemaType()
{
return _componentProperty.getSchemaType();
}
public boolean isXmlPrimitiveType()
{
return getComponentProperty().isXmlPrimitiveType();
}
public String getMaxOccurs()
{
return "unbounded";
}
public boolean isNullable()
{
return true;
}
protected Collection createCollection()
{
return new ArrayList();
}
protected void validateType(Object obj)
{
if (! (obj instanceof Collection))
throw new ClassCastException(L.l("Argument is not a Collection: {0}", obj));
}
}