Application: gvSIG desktop

/*

 * Created on 10-abr-2006

 *

 * 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: 

 * $Log: 

 */

package org.gvsig.topology.topologyrules.jtsisvalidrules;

import org.gvsig.fmap.core.FGeometryUtil;

import org.gvsig.jts.JtsUtil;

import org.gvsig.topology.AbstractTopologyRule;

import org.gvsig.topology.Messages;

import org.gvsig.topology.Topology;

import org.gvsig.topology.TopologyError;

import org.gvsig.topology.TopologyRuleDefinitionException;

import org.gvsig.topology.WrongLyrForTopologyException;

import com.hardcode.gdbms.driver.exceptions.ReadDriverException;

import com.iver.cit.gvsig.fmap.core.IFeature;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.vividsolutions.jts.geom.Geometry;

import com.vividsolutions.jts.geom.GeometryCollection;

import com.vividsolutions.jts.geom.MultiPolygon;

import com.vividsolutions.jts.geom.Polygon;

public class PolygonMustNotHaveHoles extends AbstractTopologyRule {

        public PolygonMustNotHaveHoles(Topology topology, FLyrVect lyr) {

                super(topology, lyr);

        }

        public PolygonMustNotHaveHoles(FLyrVect lyr) {

                super(lyr);

        }

        public PolygonMustNotHaveHoles(){}

        public String getDescription() {

                return Messages.getText("POLYGON_MUST_NOT_HAVE_DUPLICATED_RINGS");

        }

        public void checkPreconditions() throws TopologyRuleDefinitionException {

                int shapeType;

                try {

                        shapeType = this.originLyr.getShapeType();

                        int numDimensions = FGeometryUtil.getDimensions(shapeType);

                        if (numDimensions != 2)

                                throw new WrongLyrForTopologyException(

                                                "MustNotHaveHoles solo aplica sobre capas de dimension 2");

                } catch (ReadDriverException e) {

                        throw new TopologyRuleDefinitionException(

                                        "Error al tratar de verificar el tipo de geometria");

                }

        }

        public void validateFeature(IFeature feature) {

                Geometry jtsGeo = feature.getGeometry().toJTSGeometry();

                if (jtsGeo instanceof Polygon) {

                        Polygon polygon = (Polygon) jtsGeo;

                        if (polygon.getNumInteriorRing() > 0) {

                                createTopologyError(feature);

                        }

                } else if (jtsGeo instanceof MultiPolygon) {

                        MultiPolygon multiPoly = (MultiPolygon) jtsGeo;

                        for (int i = 0; i < multiPoly.getNumGeometries(); i++) {

                                Polygon polygon = (Polygon) multiPoly.getGeometryN(i);

                                if (polygon.getNumInteriorRing() > 0) {

                                        createTopologyError(feature);

                                }

                        }

                } else if (jtsGeo instanceof GeometryCollection) {

                        MultiPolygon multiPoly = JtsUtil

                                        .convertIfPossible((GeometryCollection) jtsGeo);

                        for (int i = 0; i < multiPoly.getNumGeometries(); i++) {

                                Polygon polygon = (Polygon) multiPoly.getGeometryN(i);

                                if (polygon.getNumInteriorRing() > 0) {

                                        createTopologyError(feature);

                                }

                        }

                }

        }

        private void createTopologyError(IFeature feature) {

                IFeature[] features = { feature };

                TopologyError error = 

                        new TopologyError(feature.getGeometry(), this, features, topology);

                addTopologyError(error);

        }

}