Application: gvSIG desktop » gvSIG projections

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2006 Instituto de Desarrollo Regional and Generalitat Valenciana.

 *

 * 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 2

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha

 *   Campus Universitario s/n

 *   02071 Alabacete

 *   Spain

 *

 *   +34 967 599 200

 */

package org.gvsig.crs.repository;

import java.sql.ResultSet;

import java.sql.SQLException;

import es.idr.teledeteccion.connection.EpsgConnection;

import es.idr.teledeteccion.connection.Query;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.crs.Crs;

import org.gvsig.crs.CrsException;

import org.gvsig.crs.ICrs;

import org.gvsig.crs.ogr.Iau2wkt;

import org.gvsig.tools.dispose.Disposable;

/**

 * Repositorio de CRSs de IAU2000

 * 

 * @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)

 *

 */

public class Iau2000Repository implements ICrsRepository, Disposable {

    private static final Logger LOG =

        LoggerFactory.getLogger(Iau2000Repository.class);

        EpsgConnection connection = null;

        public Iau2000Repository() {

                connection = new EpsgConnection();        

        }

        /**

         * Obtiene un CRS a partir de su c?digo IAU2000.

         * 

         * @param code Codigo IAU2000 del CRS. 

         * @return ICrs 

         */

        public ICrs getCrs(String code) {

                String cadWKT = "";

                Crs crs = null;

                String sentence = "SELECT iau_code, iau_wkt, iau_proj, iau_geog, iau_datum " +                                                         

                                                  "FROM IAU2000 " +                                      

                          "WHERE iau_code = " + code;

                connection.setConnectionIAU2000();

                ResultSet result = Query.select(sentence,connection.getConnection());        

                try {

                        connection.shutdown();

                } catch (SQLException e) {

                    LOG.info("Error while shutting down the connection", e);

                }

                try {

                        if (!result.next())

                                return null;                        

                        cadWKT = result.getString("iau_wkt");                        

                } catch (SQLException e1) {

                    LOG.info("Error executing the SQL", e1);

                    return null;

                }                

                cadWKT = cadWKT.substring(0, cadWKT.length()-1) + ", AUTHORITY[\"IAU2000\","+ Integer.parseInt(code)+"]]";

                if (cadWKT.charAt(0) == 'P'){

                        Iau2wkt wk = new Iau2wkt(cadWKT);

                        cadWKT = wk.getWkt();

                }

                try {

                        crs = new Crs(Integer.parseInt(code),cadWKT);

                } catch (CrsException e) {

                    LOG.info("Impossible to parse the CRS", e);

                }

                return crs;

        }

        public void dispose() {

            try {

                this.connection.shutdown();

                this.connection = null;

            } catch (SQLException ex) {

                LOG.warn("Con't shutdown the connection.",ex);

            }

        }

}