/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2004-2008, 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.xml.handlers.xsi;
import java.util.LinkedList;
import java.util.List;
import org.geotools.xml.XSIElementHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
/**
* <p>
* Represents an Extension element
* </p>
*
* @author dzwiers www.refractions.net
* @source $URL$
*/
public class ExtensionHandler extends XSIElementHandler {
/** 'extension' */
public static final String LOCALNAME = "extension";
private String base;
// private AnyAttributeHandler anyAttribute;
// TODO USE the anyAttribute !
private Object child;
private List attributeDec;
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return LOCALNAME.hashCode() * ((base == null) ? 1 : base.hashCode()) * ((child == null)
? 1 : child.hashCode());
}
/**
* @see org.geotools.xml.XSIElementHandler#getHandler(java.lang.String,
* java.lang.String)
*/
public XSIElementHandler getHandler(String namespaceURI, String localName)
throws SAXException {
if (SchemaHandler.namespaceURI.equalsIgnoreCase(namespaceURI)) {
// child types
//
logger.fine("Getting Handler for " + localName
+ " inside Extension");
// all
if (AllHandler.LOCALNAME.equalsIgnoreCase(localName)) {
AllHandler ah = new AllHandler();
if (child == null) {
child = ah;
} else {
throw new SAXNotRecognizedException(getLocalName()
+ " may only have one '" + AllHandler.LOCALNAME
+ "' declaration.");
}
return ah;
}
if (AttributeHandler.LOCALNAME.equalsIgnoreCase(localName)) {
if (attributeDec == null) {
attributeDec = new LinkedList();
}
AttributeHandler ah = new AttributeHandler();
attributeDec.add(ah);
return ah;
}
// attributeGroup
if (AttributeGroupHandler.LOCALNAME.equalsIgnoreCase(localName)) {
if (attributeDec == null) {
attributeDec = new LinkedList();
}
AttributeGroupHandler ah = new AttributeGroupHandler();
attributeDec.add(ah);
return ah;
}
// choice
if (ChoiceHandler.LOCALNAME.equalsIgnoreCase(localName)) {
ChoiceHandler ah = new ChoiceHandler();
if (child == null) {
child = ah;
} else {
throw new SAXNotRecognizedException(getLocalName()
+ " may only have one '" + ChoiceHandler.LOCALNAME
+ "' declaration.");
}
return ah;
}
// group
if (GroupHandler.LOCALNAME.equalsIgnoreCase(localName)) {
GroupHandler ah = new GroupHandler();
if (child == null) {
child = ah;
} else {
throw new SAXNotRecognizedException(getLocalName()
+ " may only have one '" + GroupHandler.LOCALNAME
+ "' declaration.");
}
return ah;
}
// sequence
if (SequenceHandler.LOCALNAME.equalsIgnoreCase(localName)) {
SequenceHandler ah = new SequenceHandler();
if (child == null) {
child = ah;
} else {
throw new SAXNotRecognizedException(getLocalName()
+ " may only have one '" + SequenceHandler.LOCALNAME
+ "' declaration.");
}
return ah;
}
}
logger.info("Handler not found for " + localName + " in Extension");
return null;
}
/**
* @see org.geotools.xml.XSIElementHandler#getLocalName()
*/
public String getLocalName() {
return LOCALNAME;
}
/**
* @see org.geotools.xml.XSIElementHandler#startElement(java.lang.String,
* java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(String namespaceURI, String localName,
Attributes atts){
base = atts.getValue("", "base");
if (base == null) {
base = atts.getValue(namespaceURI, "base");
}
}
/**
* <p>
* gets a list of AttributeHandlers
* </p>
*
*/
public List getAttributeDeclarations() {
return attributeDec;
}
/**
* <p>
* Returns the 'base' attribute
* </p>
*
*/
public String getBase() {
return base;
}
/**
* <p>
* Returns the child handler
* </p>
*
*/
public Object getChild() {
return child;
}
/* (non-Javadoc)
* @see schema.XSIElementHandler#getHandlerType()
*/
public int getHandlerType() {
return DEFAULT;
}
/**
* @see org.geotools.xml.XSIElementHandler#endElement(java.lang.String,
* java.lang.String)
*/
public void endElement(String namespaceURI, String localName){
// do nothing
}
}