/*
 *    GeoTools - OpenSource mapping toolkit
 *    http://geotools.org
 *    (C) 2004-2006, GeoTools Project Managment Committee (PMC)
 *    
 *    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 org.geotools.xml.XSIElementHandler;
import org.xml.sax.Attributes;


/**
 * ImportHandler purpose.
 * 
 * <p>
 * Represents an 'include' element
 * </p>
 *
 * @author dzwiers, Refractions Research, Inc. http://www.refractions.net
 * @author $Author:$ (last modification)
 * @source $URL: http://svn.geotools.org/geotools/tags/2.4.1/modules/library/xml/src/main/java/org/geotools/xml/handlers/xsi/IncludeHandler.java $
 * @version $Id: IncludeHandler.java 22266 2006-10-19 11:30:55Z acuster $
 */
public class IncludeHandler extends XSIElementHandler {
    /** 'include' */
    public final static String LOCALNAME = "include";
    private static int offset = 0;

    //    private String id;
    private String schemaLocation;
    private int hashCodeOffset = getOffset();

    /*
     * helper for hashCode()
     */
    private static int getOffset() {
        return offset++;
    }

    /**
     * @see java.lang.Object#hashCode()
     */
    public int hashCode() {
        return (LOCALNAME.hashCode() * ((schemaLocation == null) ? 1
                                                                 : schemaLocation
        .hashCode())) + hashCodeOffset;
    }

    /**
     * @see org.geotools.xml.XSIElementHandler#getHandler(java.lang.String,
     *      java.lang.String)
     */
    public XSIElementHandler getHandler(String namespaceURI, String localName){
        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){
        schemaLocation = atts.getValue("", "schemaLocation");

        if (schemaLocation == null) {
            schemaLocation = atts.getValue(namespaceURI, "schemaLocation");
        }
    }

    /**
     * @see org.geotools.xml.XSIElementHandler#getLocalName()
     */
    public String getLocalName() {
        return LOCALNAME;
    }

    /**
     * <p>
     * returns the schemaLocation attribute
     * </p>
     *
     */
    public String getSchemaLocation() {
        return schemaLocation;
    }

    /**
     * @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
    }
}
