Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.remoteclient.wfs.filters.filterencoding;

import java.awt.geom.PathIterator;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.Geometry.TYPES;

import org.gvsig.fmap.geom.primitive.GeneralPathX;

import org.gvsig.fmap.geom.primitive.Surface;

import org.gvsig.remoteclient.wfs.filters.operations.WFSGeometryFilterOperation;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public class GeometryFEQuery extends SpatialFEQuery{

        private Geometry geometry = null;

        public GeometryFEQuery(WFSGeometryFilterOperation geometryOperation) {

                super(geometryOperation);

                this.geometry = geometryOperation.getGeometry();        

        }

        public String getFilterEncoding(){

                StringBuffer request = new StringBuffer();

                if (geometry.getType() == TYPES.SURFACE){

                        Surface surface = (Surface)geometry;

                        request.append("<ogc:Intersects>");

                        request.append("<ogc:PropertyName>" + spatialFilterOperation.getAttributeName() + "</ogc:PropertyName>");

                        request.append("<gml:MultiSurface srsName=\"" + spatialFilterOperation.getSrsName() + "\">");

                        request.append("<gml:surfaceMember>");

                        request.append("<gml:Polygon>");

                        request.append("<gml:exterior>");

                        request.append("<gml:LinearRing>");

                        request.append("<gml:coordinates cs=\",\" decimal=\".\" ts=\" \">");

                        GeneralPathX generalPath = surface.getGeneralPath();

                        PathIterator it = generalPath.getPathIterator(null);

                        int type;

                        double[] coordinates = new double[6];

                        double[] firstCoordinates = null;

                        while (!it.isDone()){

                                type = it.currentSegment(coordinates);

                                switch (type) {

                                        case PathIterator.SEG_MOVETO:

                                        case PathIterator.SEG_LINETO:

                                                request.append(coordinates[0]);

                                                request.append(",");

                                                request.append(coordinates[1]);        

                                                request.append(" ");

                                                if (firstCoordinates == null){

                                                        firstCoordinates = new double[2];

                                                        firstCoordinates[0] = coordinates[0];

                                                        firstCoordinates[1] = coordinates[1];

                                                }

                                                break;

                                }                                

                                it.next();

                        }

                        if ((coordinates[0] != firstCoordinates[0]) || 

                                        (coordinates[1] != firstCoordinates[1])){

                                request.append(firstCoordinates[0]);

                                request.append(",");

                                request.append(firstCoordinates[1]);        

                        }

                        request.append("</gml:coordinates>");

                        request.append("</gml:LinearRing>");

                        request.append("</gml:exterior>");

                        request.append("</gml:Polygon>");

                        request.append("</gml:surfaceMember>");

                        request.append("</gml:MultiSurface>");

                        request.append("</ogc:Intersects>");

                }

                return request.toString();

        }

}