PolygonAdapter.java

/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
 * This code is licensed under the GPL 2.0 license, available at the root
 * application directory.
 */

package org.geoserver.geofence.core.model.adapter;

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

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

// TODO: Auto-generated Javadoc
/**
 * The Class PolygonAdapter.
 */
public class PolygonAdapter extends XmlAdapter<String, Polygon> {

    /* (non-Javadoc)
     * @see javax.xml.bind.annotation.adapters.XmlAdapter#unmarshal(java.lang.Object)
     */
    @Override
    public Polygon unmarshal(String val) throws ParseException {
        WKTReader wktReader = new WKTReader();

        Geometry the_geom = wktReader.read(val);
        if (the_geom instanceof Polygon) {
            if (the_geom.getSRID() == 0)
                the_geom.setSRID(4326);

            return (Polygon) the_geom;
        }

        throw new ParseException("WKB val is not a Polygon.");
    }

    /* (non-Javadoc)
     * @see javax.xml.bind.annotation.adapters.XmlAdapter#marshal(java.lang.Object)
     */
    @Override
    public String marshal(Polygon the_geom) throws ParseException {
        if (the_geom != null) {
            WKTWriter wktWriter = new WKTWriter();
            if (the_geom.getSRID() == 0)
                the_geom.setSRID(4326);

            return wktWriter.write(the_geom);
        } else {
            throw new ParseException("Polygon obj is null.");
        }
    }
}