Application: gvSIG desktop » gvSIG data provider for GPE

package org.gvsig.gpe.gml.utils;

import java.util.Hashtable;

import javax.xml.namespace.QName;

/* 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: GMLGeometries.java 202 2007-11-27 12:00:11Z jpiera $

 * $Log$

 * Revision 1.1  2007/05/18 10:41:01  csanchez

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

 *

 * Revision 1.2  2007/05/14 09:31:33  jorpiell

 * Add a new method to compare geometries

 *

 * 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  2006/12/22 11:25:04  csanchez

 * Nuevo parser GML 2.x para gml's sin esquema

 *

 *

 */

/************************************************************

 * class < Geometries >                                                                                *

 * It contains the standard tags specified in GML 2.x                *

 * Also, it has functions to parse geometry tags.                        *

 * This class help us with the "gml" namespace.                                *

 *                                                                                                                         *

 * @author Carlos S?nchez Peri??n (sanchez_carper@gva.es)        *

 ************************************************************/

public class GMLGeometries{

        //It has all the drawable geometries

        private static Hashtable gmlTags = new Hashtable();

        //It has all the tags of GML that it specifies a feature

        //private static Hashtable features = new Hashtable();

        static{

                //complex geometry elements

                gmlTags.put("_Geometry","");

                gmlTags.put("_GeometryCollection","");

                gmlTags.put("geometryMember","");

                gmlTags.put("pointMember","");

                gmlTags.put("lineStringMember","");

                gmlTags.put("polygonMember","");

                gmlTags.put("outerBoundaryIs","");

                gmlTags.put("innerBoundaryIs","");

                //primitive geometry elements

                gmlTags.put("Point","");

                gmlTags.put("LineString","");

                gmlTags.put("LinearRing","");

                gmlTags.put("Polygon","");

                gmlTags.put("Box","");

                //aggregate geometry elements

                gmlTags.put("MultiGeometry","");

                gmlTags.put("MultiPoint","");

                gmlTags.put("MultiLineString","");

                gmlTags.put("MultiPolygon","");

                //coordinate elements

                gmlTags.put("coord","");

                gmlTags.put("X","");

                gmlTags.put("Y","");

                gmlTags.put("Z","");

                gmlTags.put("coordinates","");

                //this attribute gives the location where an element is defined

                gmlTags.put("remoteSchema","");

                //features

                gmlTags.put("_Feature","");

                gmlTags.put("_FeatureCollection","");

                gmlTags.put("featureMember","");

                //some basic geometric properties of features

                gmlTags.put("_geometryProperty","");

                gmlTags.put("geometryProperty","");

                gmlTags.put("boundedBy","");

                gmlTags.put("pointProperty","");

                gmlTags.put("polygonProperty","");

                gmlTags.put("lineStringProperty","");

                gmlTags.put("multiPointProperty","");

                gmlTags.put("multiLineStringProperty","");

                gmlTags.put("multiPolygonProperty","");

                gmlTags.put("multiGeometryProperty","");

                //common aliases for geometry properties

                gmlTags.put("location","");

                gmlTags.put("centerOf","");

                gmlTags.put("position","");

                gmlTags.put("extentOf","");

                gmlTags.put("coverage","");

                gmlTags.put("edgeOf","");

                gmlTags.put("centerLineOf","");

                gmlTags.put("multiLocation","");

                gmlTags.put("multiCenterOf","");

                gmlTags.put("multiPosition","");

                gmlTags.put("multiCenterLineOf","");

                gmlTags.put("multiEdgeOf","");

                gmlTags.put("multiCoverage","");

                gmlTags.put("multiExtentOf","");

                //common feature descriptors

                gmlTags.put("description","");

                gmlTags.put("name","");

                /**********************************************************

                 * Added geometries for GML 3 SFP(Simple Feature Profile) *

                 **********************************************************/

                gmlTags.put("MultiPoint","");

                gmlTags.put("MultiCurve","");

                gmlTags.put("MultiSurface","");

                gmlTags.put("pointMember","");

                gmlTags.put("surfaceMember","");

                gmlTags.put("Curve","");

                gmlTags.put("segments","");

                gmlTags.put("curveMember","");

                gmlTags.put("LineStringSegment","");

                gmlTags.put("patches","");

                gmlTags.put("PolygonPatch","");

                gmlTags.put("Surface","");

                gmlTags.put("Polygon","");

                gmlTags.put("exterior","");

                gmlTags.put("interior","");

                gmlTags.put("LinearRing","");

                gmlTags.put("Point","");

                gmlTags.put("LineString","");

                gmlTags.put("pos","");

                gmlTags.put("posList","");

                gmlTags.put("Envelope","");

                gmlTags.put("boundedBy","");

                gmlTags.put("description","");

                gmlTags.put("name","");

                gmlTags.put("curveProperty","");

                gmlTags.put("surfaceProperty","");

                gmlTags.put("multiCurveProperty","");

                gmlTags.put("multiSurfaceProperty","");

        }

        private QName tag;

        /**

         * It search a tag in the geometry hashtable

         *         -if it isn't, then returns false.

         *         -else it is a GML 2.x stardard geometry and return true

         * @return 

         * 

         * @return boolean

         **/

        public static boolean isGeometryGML(QName tag){

                return (gmlTags.get(tag.getLocalPart())!=null);

        }

        /**

         * Return if the tag is a geometry

         * @param tag

         * XML tag to compare

         * @return 

         * true if the tag is a geometry

         */

        public static boolean isGML(QName tag){

                if (tag.getNamespaceURI() != null){

                                 if(tag.getNamespaceURI().equals(GMLTags.GML_NAMESPACE_URI))

                                        return isGeometryGML(tag);

                }                

                return false;

        }

}