MultiPolygon.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * 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
 * Lesser General Public License for more details. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package ddf.geo.formatter;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.abdera.ext.geo.Position;

import com.vividsolutions.jts.geom.Geometry;

public class MultiPolygon extends Polygon {

    public static final String TYPE = "MultiPolygon";

    public MultiPolygon(Geometry geometry) {
        super(geometry);

    }

    public static CompositeGeometry toCompositeGeometry(List coordinates) {
        com.vividsolutions.jts.geom.Polygon[] allPolygons =
                new com.vividsolutions.jts.geom.Polygon[coordinates.size()];

        for (int i = 0; i < allPolygons.length; i++) {
            allPolygons[i] = buildPolygon((List) coordinates.get(i));

        }
        return new MultiPolygon(GEOMETRY_FACTORY.createMultiPolygon(allPolygons));
    }

    @Override
    public Map toJsonMap() {
        Map map = new HashMap();

        if (TYPE.equals(geometry.getGeometryType())) {

            map.put(TYPE_KEY, TYPE);

            List<List> listOfPolygons = new ArrayList<List>();

            for (int i = 0; i < geometry.getNumGeometries(); i++) {
                List polygon =
                        buildJsonPolygon((com.vividsolutions.jts.geom.Polygon) geometry.getGeometryN(
                                i));
                listOfPolygons.add(polygon);
            }

            map.put(COORDINATES_KEY, listOfPolygons);

        } else {
            throw new UnsupportedOperationException("Geometry is not a " + TYPE);
        }

        return map;

    }

    @Override
    public List<Position> toGeoRssPositions() {

        List<Position> positions = new ArrayList<Position>();

        if (null != geometry) {
            for (int i = 0; i < geometry.getNumGeometries(); i++) {
                CompositeGeometry compositeGeo =
                        CompositeGeometry.getCompositeGeometry(geometry.getGeometryN(i));
                if (null != compositeGeo) {
                    positions.addAll(compositeGeo.toGeoRssPositions());
                }
            }
        }

        return positions;

    }

}