GeometryAdapter.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.core.model.adapter;

import javax.xml.bind.annotation.adapters.XmlAdapter;

import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.io.ParseException;
import com.vividsolutions.jts.io.WKTReader;
import com.vividsolutions.jts.io.WKTWriter;

/**
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 * 
 */
public class GeometryAdapter<T extends Geometry> extends XmlAdapter<String, T> {

    /**
     * (non-Javadoc)
     *
     * @see javax.xml.bind.annotation.adapters.XmlAdapter#unmarshal(java.lang.Object)
     */
    @SuppressWarnings("unchecked")
    @Override
    public T unmarshal(String v) throws ParseException {
        if (v != null) {
            WKTReader reader = new WKTReader();

            Geometry theGeom = reader.read(v);
            if (theGeom.getSRID() == 0) {
                theGeom.setSRID(4326);
            }

            try {
                return (T) theGeom;
            } catch (ClassCastException e) {
                throw new ParseException("WKT v is a "
                        + theGeom.getClass().getName());
            }
        }
        return null;
    }

    /**
     * (non-Javadoc)
     *
     * @see javax.xml.bind.annotation.adapters.XmlAdapter#marshal(java.lang.Object)
     */
    @Override
    public String marshal(T v) throws ParseException {
        if (v != null) {
            WKTWriter writer = new WKTWriter();
            String wkt = writer.write(v);
            return wkt;
        }
        return null;
    }
}