Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.geom.jts.coerce;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.tools.dataTypes.CoercionException;

import org.gvsig.tools.dataTypes.DataTypesManager.Coercion;

/**

 * Convert a object to Geometry.

 *

 * Support convert: - Geometry to Geometry (do nothing) - WKB (byte[]) to

 * Geometry - WKT (String/toString) to Geometry

 *

 *

 * @author gvSIG Team

 * @version $Id$

 *

 */

@SuppressWarnings("UseSpecificCatch")

public class CoerceToGeometry implements Coercion {

    public Object coerce(Object value) throws CoercionException {

        try {

            if (value == null || value instanceof Geometry) {

                return value;

            }

            Geometry geom;

            GeometryManager manager = GeometryLocator.getGeometryManager();

            if (value instanceof byte[]) {

                geom = manager.createFrom((byte[]) value);

            } else {

                // Si no puede pasear el WKT devuelbe null y no lanza una 

                // excepcion.

                geom = manager.createFrom(value.toString());

            }

            if (geom == null) {

                throw new CoercionException();

            }

            return geom;

        } catch (Exception e) {

            throw new CoercionException(e);

        }

    }

}