Application: gvSIG desktop

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

 *

 * Copyright (C) 2006 Prodevelop 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

 *

 *   Prodevelop Integraci?n de Tecnolog?as SL

 *   Conde Salvatierra de ?lava , 34-10

 *   46004 Valencia

 *   Spain

 *

 *   +34 963 510 612

 *   +34 963 510 968

 *   gis@prodevelop.es

 *   http://www.prodevelop.es

 */

package es.prodevelop.cit.gvsig.jdbc_spatial;

import java.security.KeyException;

import org.apache.log4j.Logger;

import com.iver.andami.PluginServices;

import com.iver.andami.plugins.Extension;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.cit.gvsig.About;

import com.iver.cit.gvsig.fmap.MapContext;

import com.iver.cit.gvsig.fmap.MapControl;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLayerVectorialDB;

import com.iver.cit.gvsig.fmap.layers.FLyrVect;

import com.iver.cit.gvsig.project.documents.view.gui.View;

import com.iver.utiles.extensionPoints.ExtensionPoint;

import com.iver.utiles.extensionPoints.ExtensionPoints;

import com.iver.utiles.extensionPoints.ExtensionPointsSingleton;

/**

 * This extension adds the export-to-oracle button.

 *

 * @author jldominguez

 *

 */

public class ExportOracleExtension extends Extension {

    private static Logger logger = Logger.getLogger(ExportOracleExtension.class.getName());

    public static boolean ORACLE_JAR_PRESENT = false;

    public void initialize() {

            ORACLE_JAR_PRESENT = isOracleJarPresent();

            if (!ORACLE_JAR_PRESENT) {

                    logger.info("*-----------------------------------------------------------------------*");

                    logger.info("* Oracle library not found!                                             *");

                    logger.info("* You need to place the Oracle JDBC library in gvSIG's main LIB folder. *");

                    logger.info("* Read the Oracle driver user manual for details.                       *");

                    logger.info("*-----------------------------------------------------------------------*");

            } else {

                    logger.info("*-----------------------------------------------------------------------*");

                    logger.info("* Found the Oracle JDBC library! :)                                     *");

                    logger.info("*-----------------------------------------------------------------------*");

            }

        // about

        java.net.URL newurl = createResourceUrl("about/jdbc-os-about.html");

        About claseAbout = (About) PluginServices.getExtension(com.iver.cit.gvsig.About.class);

        claseAbout.getAboutPanel().addAboutUrl("JDBC Oracle Spatial", newurl);

        ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance();

        try {

                        ((ExtensionPoint)extensionPoints.get("Layers")).addAlias(FLayerVectorialDB.class.getName(), "VectorialDB");

                } catch (KeyException e) {

                        logger.error("While adding alias to extension point: " + e.getMessage());

                }

        OraEpsgTableLoader loader = new OraEpsgTableLoader();

        if (!loader.createOracleEpsgTable()) {

                logger.error("Unable to create ORA_EPSG datasource!");

        }

    }

    private boolean isOracleJarPresent() {

            try {

                    Class rowid_class = Class.forName("oracle.sql.ROWID");

            } catch (Exception ex) {

                    logger.error("Unbale to instantiate ROWID (oracle jar missing?) : " + ex.getMessage());

                    return false;

            }

                return true;

        }

        public void execute(String actionCommand) {

        if (actionCommand.compareToIgnoreCase("EXPORT_TO_ORACLE_SPATIAL") == 0) {

            FLyrVect lyrv = null;

            MapContext mx = null;

            try {

                IWindow w = PluginServices.getMDIManager().getActiveWindow();

                if (w instanceof View) {

                    View v = (View) w;

                    MapControl mc = v.getMapControl();

                    mx = mc.getMapContext();

                    FLayer[] lyrs = mx.getLayers().getActives();

                    if (lyrs.length == 1) {

                        FLayer lyr = lyrs[0];

                        if (lyr instanceof FLyrVect) {

                            lyrv = (FLyrVect) lyr;

                            ExportToOracle export = new ExportToOracle();

                            export.toOracle(mx, lyrv);

                        }

                    }

                }

            }

            catch (Exception ex) {

                    logger.error(

                    "Unexpected error while getting active vect layer: " +

                    ex.getMessage());

                    logger.error("Nothing done.");

            }

        }

    }

    public boolean isEnabled() {

        return isVisible();

    }

    /**

     * Is visible when there is one vector layer selected

     */

    public boolean isVisible() {

            if (!ORACLE_JAR_PRESENT) {

                    return false;

            }

            // if (true) return true;

        try {

            IWindow w = PluginServices.getMDIManager().getActiveWindow();

            if (w instanceof View) {

                View v = (View) w;

                MapControl mc = v.getMapControl();

                MapContext mx = mc.getMapContext();

                FLayer[] lyrs = mx.getLayers().getActives();

                if (lyrs.length == 1) {

                    FLayer lyr = lyrs[0];

                    if ((lyr instanceof FLyrVect) && (true)) {

                        return true;

                    }

                }

            }

        } catch (Exception ex) {

            return false;

        }

        return false;

    }

    private java.net.URL createResourceUrl(String path) {

        return getClass().getClassLoader().getResource(path);

    }

}