| gvSIG desktop 1

package org.gvsig.gpe.gml.parser.v2.features;

import java.io.IOException;

import org.gvsig.gpe.gml.parser.GPEDefaultGmlParser;

import org.gvsig.gpe.gml.utils.GMLGeometries;

import org.gvsig.gpe.gml.utils.GMLUtilsParser;

import org.gvsig.xmlschema.som.IXSElementDeclaration;

import org.gvsig.xmlschema.utils.TypeUtils;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

 *

 * $Id: ElementTypeBinding.java 350 2008-01-09 12:53:07Z jpiera $

 * $Log$

 * Revision 1.8  2007/06/14 13:50:05  jorpiell

 * The schema jar name has been changed

 *

 * Revision 1.7  2007/06/07 14:53:30  jorpiell

 * Add the schema support

 *

 * Revision 1.6  2007/05/18 10:41:01  csanchez

 * Actualizaci?n libGPE-GML eliminaci?n de clases inecesarias

 *

 * Revision 1.5  2007/05/16 13:00:48  csanchez

 * Actualizaci?n de libGPE-GML

 *

 * Revision 1.4  2007/05/15 09:51:59  jorpiell

 * The namespace is deleted from the element name

 *

 * Revision 1.3  2007/05/15 09:35:09  jorpiell

 * the tag names cant have blanc spaces

 *

 * Revision 1.2  2007/05/15 08:04:16  jorpiell

 * If the element type is a geometry, the element value wiil be the toString geometry method

 *

 * Revision 1.1  2007/05/14 09:30:30  jorpiell

 * Add the FeatureMember tag

 *

 *

 */

/**

 * This class is used to parse some xml tags that

 * represents a xml element. 

 * @author Jorge Piera LLodr? (jorge.piera@iver.es)

 * @see http://www.w3.org/XML/Schema

 */

public class ElementTypeBinding {

        /**

         * It parses a xml element

         * @param parser

         * The XML parser

         * @param handler

         * The GPE parser that contains the content handler and

         * the error handler

         * @param feature

         * The feature is needed to add the geometry

         * @param parentElement

         * The parent element

         * @return

         * A Element

         * @throws XmlPullParserException

         * @throws IOException

         */

        public Object parse(XmlPullParser parser,GPEDefaultGmlParser handler, Object feature, Object parentElement, IXSElementDeclaration parentType) throws XmlPullParserException, IOException {

                boolean endFeature = false;

                boolean isGeometryTag = false;

                int currentTag;                

                Object element = null;        

                Object value = null;

                Object geometry = null;

                boolean isInitialized = false;

                //Used to finish to parse the current element

                String elementRootType = parser.getName();

                String type = null;        

                //Find the element type

                IXSElementDeclaration elementType = null;

                if (parentType != null){

                        elementType = parentType.getSubElementByName(elementRootType);

                        if (elementType == null){

                                type = TypeUtils.getXSType(String.class);

                        }else{

                                type = elementType.getTypeName();

                        }

                }else{

                        type = TypeUtils.getXSType(String.class);

                }

                String tag = parser.getName();

                currentTag = parser.getEventType();

                while (!endFeature){

                        switch(currentTag){

                        case XmlPullParser.START_TAG:

                                if (!(tag.compareTo(elementRootType)==0)){

                                        //If is a geometry

                                        if (GMLGeometries.isGML(tag)){

                                                geometry = handler.getProfile().getGeometryBinding().

                                                                parse(parser, handler);

                                                handler.getContentHandler().addGeometryToFeature(geometry, feature);

                                                if (geometry==null){

                                                        System.out.println("\t\t\tGEOMETRIA VACIA");

                                                        //Warning geometria vacia

                                                }

                                                isGeometryTag=true;

                                        }else {

                                                //If is not a geometry could be a complex feature

                                                if (!isInitialized){

                                                        String elementName = getElementName(elementRootType);

                                                        element = handler.getContentHandler().startElement(GMLUtilsParser.removeBlancSymbol(elementName), 

                                                                        null,

                                                                        type,

                                                                        parentElement);

                                                        isInitialized = true;

                                                }

                                                handler.getProfile().getElementTypeBinding().

                                                        parse(parser, handler, feature, element, elementType);

                                        }                                

                                }

                                break;

                        case XmlPullParser.END_TAG:

                                if (tag.compareTo(elementRootType) == 0){                                                

                                        endFeature = true;

                                        //If not is complex the element has not been created yet

                                        if (!isInitialized){

                                                String elementName = getElementName(elementRootType);

                                                element = handler.getContentHandler().startElement(GMLUtilsParser.removeBlancSymbol(elementName), 

                                                                value,

                                                                type,

                                                                parentElement);

                                                isInitialized = true;

                                        }

                                        handler.getContentHandler().endElement(element,isGeometryTag);

                                }

                                break;

                        case XmlPullParser.TEXT:                                        

                                if (geometry == null){

                                        value = TypeUtils.getValue(elementType, parser.getText());

                                }

                                break;

                        }

                        if (!endFeature){                                        

                                currentTag = parser.next();

                                tag = parser.getName();

                        }

                }                        

                return element;                

        }

        /**

         * Removes the namespace from a element name

         * @return

         * The element name without namespace

         */

        private static String getElementName(String element){

                return element.substring(element.indexOf(":") + 1,element.length());

        }

}