org.geolatte.geom.codec.db.sqlserver.Decoders Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of geolatte-geom Show documentation

This geoLatte-geom library offers a geometry model that conforms to the OGC Simple Features for SQL specification.

The newest version!

/*
 * This file is part of the GeoLatte project.
 *
 *     GeoLatte 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
 *     (at your option) any later version.
 *
 *     GeoLatte 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.
 *
 *     You should have received a copy of the GNU Lesser General Public License
 *     along with GeoLatte.  If not, see .
 *
 * Copyright (C) 2010 - 2013 and Ownership of code is shared by:
 * Qmino bvba - Romeinsestraat 18 - 3001 Heverlee  (http://www.qmino.com)
 * Geovise bvba - Generaal Eisenhowerlei 9 - 2140 Antwerpen (http://www.geovise.com)
 */

package org.geolatte.geom.codec.db.sqlserver;

import org.geolatte.geom.Geometry;
import org.geolatte.geom.codec.db.Decoder;

import java.util.ArrayList;
import java.util.List;

/**
 * Decodes SQL Server Geometry objects to JTS Geometrys.
 *
 * @author Karel Maesen, Geovise BVBA.
 */
public class Decoders {

    final private static List DECODERS = new ArrayList();

    static {
        //Decoders
        DECODERS.add(new PointSqlServerDecoder());
        DECODERS.add(new LineStringSqlServerDecoder());
        DECODERS.add(new PolygonSqlServerDecoder());
        DECODERS.add(new MultiLineStringSqlServerDecoder());
        DECODERS.add(new MultiPolygonSqlServerDecoder());
        DECODERS.add(new MultiPointSqlServerDecoder());
        DECODERS.add(new GeometryCollectionSqlServerDecoder());
    }


    private static Decoder decoderFor(SqlServerGeometry object) {
        for (Decoder decoder : DECODERS) {
            if (decoder.accepts(object)) {
                return decoder;
            }
        }
        throw new IllegalArgumentException("No decoder for type " + object.openGisType());
    }

    /**
     * Decodes the SQL Server Geometry object to its JTS Geometry instance
     *
     * @param raw
     * @return
     */
    public static Geometry decode(byte[] raw) {
        SqlServerGeometry sqlServerGeom = SqlServerGeometry.deserialize(raw);
        Decoder decoder = decoderFor(sqlServerGeom);
        return decoder.decode(sqlServerGeom);
    }

    /**
     * Returns the decoder capable of decoding an object of the specified OpenGisType
     *
     * @param type OpenGisType for which a decoder is returned
     * @return
     */
    public static Decoder decoderFor(OpenGisType type) {
        for (AbstractSqlServerDecoder decoder : DECODERS) {
            if (decoder.accepts(type)) {
                return decoder;
            }
        }
        throw new IllegalArgumentException("No decoder for type " + type);
    }

}