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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
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 * Version 2] license."  If you don't indicate a single choice of license, a
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 */

package com.sun.grizzly.http.webxml.parser.handler;

import java.io.IOException;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

public class SAXWebXmlHandler extends DefaultHandler {

	private boolean dtdFound = false;
	private boolean xsdFound = false;
	private String version = null;
	
	public void reset(){
		dtdFound = false;
		xsdFound = false;
		version = null;
	}
	
	public void startElement(String namespaceURI, String localName, String qName, Attributes atts) {

		if(dtdFound){
			return;
		}
		
		if (qName.toUpperCase().equals("WEB-APP")) {
			
			// look for version attribute
			version = atts.getValue("version");
			
			// if version not found extract it from xsi
			if(version==null){
				String value = atts.getValue("xsi:schemaLocation");
				
				if(value!=null){
					xsdFound = true;
					int index = value.lastIndexOf("/");
					if(index>0){
						version = value.substring(index+1);
					}
				}
			}
			
		}
	}

	@Override
	public InputSource resolveEntity(String publicId, String systemId) throws IOException, SAXException {
		// DTD
		if(systemId.toUpperCase().endsWith(".DTD")){
			dtdFound = true;
			
			int index = systemId.lastIndexOf("/");
			if(index>0){
				version = systemId.substring(index+1);
			}
		}
		
		return null;
	}
	
	public boolean getDtdFound() {
		return dtdFound;
	}

	public void setDtdFound(boolean dtdFound) {
		this.dtdFound = dtdFound;
	}

	public boolean getXsdFound() {
		return xsdFound;
	}

	public void setXsdFound(boolean xsdFound) {
		this.xsdFound = xsdFound;
	}

	public String getVersion() {
		return version;
	}

	public void setVersion(String version) {
		this.version = version;
	}

}