/*
* 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.net.URI;
import java.util.LinkedList;
import java.util.List;
import org.geotools.xml.XSIElementHandler;
import org.geotools.xml.schema.All;
import org.geotools.xml.schema.Element;
import org.geotools.xml.schema.ElementGrouping;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
* AllHandler purpose.
*
* <p>
* This represents an 'all' element in an xml schema.
* </p>
*
* @author dzwiers, Refractions Research, Inc. http://www.refractions.net
* @author $Author:$ (last modification)
*
*
* @source $URL$
* @version $Id$
*/
public class AllHandler extends ElementGroupingHandler {
/** 'all' */
public static final String LOCALNAME = "all";
private String id;
private int minOccurs;
private int maxOccurs;
private List elements;
private DefaultAll cache = null;
/**
* @see org.geotools.xml.XSIElementHandler#getHandler(java.lang.String,
* java.lang.String)
*/
public XSIElementHandler getHandler(String namespaceURI, String localName){
if (SchemaHandler.namespaceURI.equalsIgnoreCase(namespaceURI)) {
// child types
//
// annotation
// element
if (ElementTypeHandler.LOCALNAME.equalsIgnoreCase(localName)) {
if (elements == null) {
elements = new LinkedList();
}
ElementTypeHandler eh = new ElementTypeHandler();
elements.add(eh);
return eh;
}
}
return null;
}
/**
* @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){
id = atts.getValue("", "id");
if (id == null) {
id = atts.getValue(namespaceURI, "id");
}
String minOccurs1 = atts.getValue("", "minOccurs");
if (minOccurs1 == null) {
minOccurs1 = atts.getValue(namespaceURI, "minOccurs");
}
if (minOccurs1 == null || minOccurs1.length() == 0) {
this.minOccurs = 1;
} else {
this.minOccurs = Integer.parseInt(minOccurs1);
}
String maxOccurs1 = atts.getValue("", "maxOccurs");
if (maxOccurs1 == null) {
maxOccurs1 = atts.getValue(namespaceURI, "maxOccurs");
}
if (maxOccurs1 == null || maxOccurs1.length() == 0) {
this.maxOccurs = 1;
} else {
this.maxOccurs = Integer.parseInt(maxOccurs1);
}
}
/**
* @see org.geotools.xml.XSIElementHandler#getLocalName()
*/
public String getLocalName() {
return LOCALNAME;
}
/**
* @see org.geotools.xml.XSIHandlers.ElementGroupingHandler#compress(org.geotools.xml.XSIHandlers.SchemaHandler)
*/
protected ElementGrouping compress(SchemaHandler parent)
throws SAXException {
synchronized(this){
if (cache != null)
return cache;
cache = new DefaultAll();
}
cache.id = id;
cache.maxOccurs = maxOccurs;
cache.minOccurs = minOccurs;
if (elements != null) {
cache.elements = new Element[elements.size()];
for (int i = 0; i < cache.elements.length; i++){
cache.elements[i] = (Element) ((ElementTypeHandler) elements.get(i))
.compress(parent);
}
}
id = null;
elements = null;
return cache;
}
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return (LOCALNAME.hashCode() * ((id == null) ? 1 : id.hashCode()))
+ (minOccurs * maxOccurs);
}
/**
* @see org.geotools.xml.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
}
/**
* <p>
* Default implementation for when the parse is complete
* </p>
*
* @author dzwiers
*
* @see All
*/
private static class DefaultAll implements All {
// file visible to avoid set* methods.
Element[] elements;
String id;
int maxOccurs;
int minOccurs;
/**
* @see org.geotools.xml.xsi.ElementGrouping#findChildElement(java.lang.String)
*/
public Element findChildElement(String name) {
if (elements == null) {
return null;
}
for (int i = 0; i < elements.length; i++) {
Element t = elements[i].findChildElement(name);
if (t != null) { // found it
return t;
}
}
return null;
}
/**
* @see org.geotools.xml.xsi.All#getElements()
*/
public Element[] getElements() {
return elements;
}
/**
* @see org.geotools.xml.xsi.All#getId()
*/
public String getId() {
return id;
}
/**
* @see org.geotools.xml.xsi.ElementGrouping#getMaxOccurs()
*/
public int getMaxOccurs() {
return maxOccurs;
}
/**
* @see org.geotools.xml.xsi.ElementGrouping#getMinOccurs()
*/
public int getMinOccurs() {
return minOccurs;
}
/**
* @see org.geotools.xml.xsi.ElementGrouping#getGrouping()
*/
public int getGrouping() {
return ALL;
}
public Element findChildElement(String localName, URI namespaceURI) {
if (elements == null) {
return null;
}
for (int i = 0; i < elements.length; i++) {
Element t = elements[i].findChildElement(localName, namespaceURI);
if (t != null) { // found it
return t;
}
}
return null;
}
}
}