GMLBaseMultiPointParser.java

/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   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, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gml.api.parser.base.geometry.multi.point;

import com.google.common.base.Preconditions;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.Point;
import java.util.ArrayList;
import java.util.List;
import org.geosdi.geoplatform.gml.api.MultiPoint;
import org.geosdi.geoplatform.gml.api.MultiPointProperty;
import org.geosdi.geoplatform.gml.api.PointArrayProperty;
import org.geosdi.geoplatform.gml.api.PointProperty;
import org.geosdi.geoplatform.gml.api.parser.base.AbstractGMLBaseParser;
import org.geosdi.geoplatform.gml.api.parser.base.AbstractGMLBaseSRSParser;
import org.geosdi.geoplatform.gml.api.parser.base.geometry.point.GMLBasePointParser;
import org.geosdi.geoplatform.gml.api.parser.exception.ParserException;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
public class GMLBaseMultiPointParser
        extends AbstractGMLBaseParser<MultiPoint, MultiPointProperty, com.vividsolutions.jts.geom.MultiPoint> {

    private GMLBasePointParser pointParser;
    private MemberBuilder pointMember = new PointMemberBuilder();
    private MemberBuilder pointMembers = new PointMembersBuilder();

    public GMLBaseMultiPointParser(GeometryFactory theGeometryFactory,
            AbstractGMLBaseSRSParser theSrsParser,
            GMLBasePointParser thePointParser) {
        super(theGeometryFactory, theSrsParser);

        this.pointParser = thePointParser;
    }

    @Override
    protected com.vividsolutions.jts.geom.MultiPoint canParseGeometry(
            MultiPoint gmlGeometry)
            throws ParserException {

        List<Point> points = new ArrayList<Point>();

        this.pointMember.builMember(gmlGeometry, points);
        this.pointMembers.builMember(gmlGeometry, points);

        if (points.isEmpty()) {
            throw new IllegalArgumentException("PointMember and PointMembers "
                    + "can't be both null.");
        }

        return geometryFactory.createMultiPoint(points.toArray(
                new Point[points.size()]));
    }

    @Override
    public com.vividsolutions.jts.geom.MultiPoint parseGeometry(
            MultiPointProperty propertyType)
            throws ParserException {

        Preconditions.checkNotNull(propertyType, "The MultiPoint Property "
                + "must be not null.");

        if (propertyType.isSetMultiPoint()) {
            return super.parseGeometry(propertyType.getMultiPoint());
        }

        throw new ParserException("There is no GML MultiPoint to Parse.");
    }

    protected interface MemberBuilder {

        void builMember(MultiPoint gmlGeometry,
                List<Point> points) throws ParserException;
    }

    protected class PointMemberBuilder implements MemberBuilder {

        @Override
        public void builMember(MultiPoint gmlGeometry,
                List<Point> points) throws ParserException {

            if (gmlGeometry.isSetPointMember()) {
                for (PointProperty property : gmlGeometry.getPointMember()) {
                    points.add(pointParser.parseGeometry(property.getPoint()));
                }
            }
        }
    }

    protected class PointMembersBuilder implements MemberBuilder {

        @Override
        public void builMember(MultiPoint gmlGeometry,
                List<Point> points) throws ParserException {

            if (gmlGeometry.isSetPointMembers()) {
                PointArrayProperty pointArrayProp = gmlGeometry.getPointMembers();

                for (org.geosdi.geoplatform.gml.api.Point point : pointArrayProp.getPoint()) {
                    points.add(pointParser.parseGeometry(point));
                }
            }
        }
    }
}