/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library 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. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.feature.xpath;
import java.util.Iterator;
import org.apache.commons.jxpath.ri.QName;
import org.apache.commons.jxpath.ri.model.NodePointer;
import org.eclipse.xsd.XSDAttributeDeclaration;
import org.eclipse.xsd.XSDElementDeclaration;
import org.geotools.xml.Schemas;
import org.opengis.feature.type.ComplexType;
import org.opengis.feature.type.Name;
import org.opengis.feature.type.PropertyDescriptor;
import org.opengis.feature.type.PropertyType;
/**
* Special node pointer for an XML-attribute inside an attribute.
*
* @author Niels Charlier (Curtin University of Technology)
*
*
*
*
*
* @source $URL$
*/
public class DescriptorXmlAttributeNodePointer extends NodePointer {
/**
*
*/
private static final long serialVersionUID = 8096170689141331692L;
/**
* The name of the node.
*/
Name name;
/**
* The underlying descriptor
*/
PropertyDescriptor descriptor;
protected DescriptorXmlAttributeNodePointer(NodePointer parent, PropertyDescriptor descriptor, Name name) {
super(parent);
this.name = name;
this.descriptor = descriptor;
}
public boolean isLeaf() {
return true;
}
public boolean isCollection() {
return false;
}
public boolean isAttribute() {
return true;
}
public QName getName() {
return new QName( name.getURI(), name.getLocalPart() );
}
public Object getBaseValue() {
return null;
}
public Object getImmediateNode() {
//first try regular way
PropertyType pt = descriptor.getType();
if (pt instanceof ComplexType) {
ComplexType ct = (ComplexType) pt;
PropertyDescriptor ad = ct.getDescriptor("@" + name.getLocalPart());
if (ad != null) {
return ad;
}
}
XSDElementDeclaration decl = (XSDElementDeclaration) descriptor.getUserData().get(
XSDElementDeclaration.class);
Iterator it = Schemas.getAttributeDeclarations(decl).iterator();
while (it.hasNext()) {
XSDAttributeDeclaration attDecl = ((XSDAttributeDeclaration) it.next());
if (attDecl.getURI().equals(
(name.getNamespaceURI() == null ? "" : name.getNamespaceURI()) + "#"
+ name.getLocalPart())) {
return name;
}
}
return null;
}
public void setValue(Object value) {
throw new UnsupportedOperationException("Feature types are immutable");
}
@Override
public int compareChildNodePointers(NodePointer arg0, NodePointer arg1) {
return 0;
}
@Override
public int getLength() {
return 0;
}
}