Application: gvSIG desktop

package org.gvsig.gpe.kml;

import java.util.Hashtable;

import org.gvsig.exceptions.BaseException;

import org.gvsig.gpe.gml.factories.IGeometriesFactory;

import org.gvsig.gpe.kml.engine.AbstractFeaturesParser;

import org.gvsig.gpe.kml.engine.IFeaturesParser;

import org.gvsig.gpe.kml.engine.IReaderFile;

import org.gvsig.gpe.kml.exceptions.KmlImpossibleCreateParser;

import org.gvsig.gpe.kml.warnings.NotNamespaceParserWarning;

import org.gvsig.gpe.kml.warnings.WarningsContainer;

/* 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: KmlParsersFactory.java 11157 2007-04-12 10:21:52Z jorpiell $

 * $Log$

 * Revision 1.2  2007-04-12 10:21:52  jorpiell

 * Add the writers

 *

 * Revision 1.1  2007/03/07 08:19:10  jorpiell

 * Pasadas las clases de KML de libGPE-GML a libGPE-KML

 *

 * Revision 1.1  2007/02/28 11:48:31  csanchez

 * *** empty log message ***

 *

 * Revision 1.1  2007/02/20 10:53:20  jorpiell

 * A?adidos los proyectos de kml y gml antiguos

 *

 * Revision 1.1  2007/02/12 13:49:18  jorpiell

 * A?adido el driver de KML

 *

 *

 */

/**

 * @author Jorge Piera Llodr? (piera_jor@gva.es)

 */

public class KmlParsersFactory {

        private WarningsContainer warnings = null;

        private static Hashtable supportedVersions = new Hashtable();

        private static Hashtable parserVersions = new Hashtable();

        static {

                supportedVersions.put("http://earth.google.com/kml/2.1",KmlFeaturesParser.class);        

                supportedVersions.put("http://earth.google.com/kml/2.0",KmlFeaturesParser.class);                

                supportedVersions.put("unknown",KmlFeaturesParser.class);                

        }

        public IFeaturesParser createParser(String nameSpace, IGeometriesFactory factory, IReaderFile reader) throws BaseException{

                Class clazz = (Class) supportedVersions.get(nameSpace);

                if (clazz == null){

                        clazz = (Class) supportedVersions.get("unknown");

                        //WARNING VERSION NOT SUPPORTED OR NOT SPECIFIED

                        warnings.setElement(new NotNamespaceParserWarning(nameSpace));

                }

                if (clazz != null){

                        //Utilizamos un interfaz con los tipos y las geometrias b?sicas de GML

                        //?Otra opcion seria parsear el schemas de opengis, para obtener los tipos b?sicos?

                        Class [] args = {IReaderFile.class,IGeometriesFactory.class};

                        Object [] params = {reader,factory};

                        //pasamos el parser con el que estamos leyendo el gml y el interfaz de geometrias

                        //para continuar con la comprobaci?n del fichero GML

                        try {

                                return (AbstractFeaturesParser)clazz.getConstructor(args).newInstance(params);

                        } catch (Exception e) {

                                throw new KmlImpossibleCreateParser(nameSpace,e);

                        }

                }

                return null ;                

        }

}