| gvSIG desktop 1

/*

 * Created on 07-sep-2007

 *

 * 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;

import java.util.Collection;

import java.util.Iterator;

import org.gvsig.topology.AbstractTopologyRule;

import org.gvsig.topology.IOneLyrRule;

import org.gvsig.topology.Messages;

import org.gvsig.topology.Topology;

import org.gvsig.topology.TopologyError;

import org.gvsig.topology.TopologyRuleDefinitionException;

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

import com.iver.cit.gvsig.fmap.core.FMultiPoint2D;

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

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

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

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

import com.vividsolutions.jts.geom.Coordinate;

import com.vividsolutions.jts.geom.Geometry;

import org.gvsig.jts.RepeatedPointTester;

/**

 * This rule checks that a geometry (line or polygon)

 * dont have consecutive repeated points)

 * 

 * @author azabala

 *

 */

public class MustNotHaveRepeatedPoints extends AbstractTopologyRule implements IOneLyrRule {

        //TODO Test that internazionalization are running well

        String ruleName = Messages.getText("must_not_have_repeated_points");

        /**

         * tests if a geometry has repeated points

         */

        RepeatedPointTester tester = new RepeatedPointTester();

        /**

         * Default constructor

         *

         */

        public MustNotHaveRepeatedPoints(Topology topology, FLyrVect originLyr){

                super(topology, originLyr);

        }

        public MustNotHaveRepeatedPoints(FLyrVect originLyr){

                super(originLyr);

        }

        public MustNotHaveRepeatedPoints(){}

        public String getDescription() {

                return ruleName;

        }

        public void checkPreconditions() throws TopologyRuleDefinitionException {

                //This rule doesnt apply to Point vectorial layers.

                try {

                        int shapeType = this.originLyr.getShapeType();

                        if(shapeType == FShape.POINT)

                                throw new TopologyRuleDefinitionException();

                } catch (ReadDriverException e) {

                        e.printStackTrace();

                        throw new TopologyRuleDefinitionException("Error leyendo el tipo de geometria del driver",e);

                }        

        }

        /**

         * Validates this rule with a feature of the origin layer

         * @param feature feature of the origin layer this rule is checking

         */

        public void validateFeature(IFeature feature) {

                IGeometry geometry = feature.getGeometry();

                Geometry jtsGeometry = geometry.toJTSGeometry();

                if(tester.hasRepeatedPoint(jtsGeometry)){

                        Collection<Coordinate> repeatedCoords = tester.getRepeatedCoordinates();

                    int numRepeatedPoints = repeatedCoords.size();

                    double[] x = new double[numRepeatedPoints];

                    double[] y = new double[numRepeatedPoints];

                    Iterator<Coordinate> coordsIt = repeatedCoords.iterator();

                    int count = 0;

                    while(coordsIt.hasNext()){

                            Coordinate coord = (Coordinate) coordsIt.next();

                            x[count] = coord.x;

                            y[count] = coord.y;

                            count++;

                    }

                    FMultiPoint2D multiPoint = new FMultiPoint2D(x, y);

                    //FIXME Create a TopologyErrorFactory

                    TopologyError topologyError = 

                                        new TopologyError(multiPoint, 

                                                                                this, 

                                                                         feature,

                                                                        topology);

                        topologyError.setID(errorContainer.getErrorFid());

                        addTopologyError(topologyError);

                }//if

                tester.clear();

        } 

}