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

import com.hardcode.gdbms.engine.instruction.FieldNotFoundException;

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

import com.iver.cit.gvsig.fmap.crs.CRSFactory;

import com.iver.cit.gvsig.fmap.drivers.DriverIOException;

import com.iver.cit.gvsig.fmap.drivers.IVectorialDatabaseDriver;

import com.iver.cit.gvsig.fmap.drivers.WithDefaultLegend;

import com.iver.cit.gvsig.fmap.rendering.LegendFactory;

import com.iver.cit.gvsig.fmap.rendering.VectorialLegend;

import com.iver.utiles.XMLEntity;

import org.cresques.cts.IProjection;

public class FLayerVectorialDB extends FLyrVect {

    private boolean loaded = false;

    private IVectorialDatabaseDriver dbDriver = null;

    /* Esto deberia ir en el FLyrDefault */

    public void setProjectionByName(String projectionName)

        throws Exception {

        IProjection proj = CRSFactory.getCRS(projectionName);

        if (proj == null) {

            throw new Exception("No se ha encontrado la proyeccion: " +

                projectionName);

        }

        this.setProjection(proj);

    }

    public void setDriver(IVectorialDatabaseDriver driver) {

        this.dbDriver = driver;

    }

    public void setDriverByName(String driverName) {

        this.setDriver((IVectorialDatabaseDriver) LayerFactory.getDM()

                                                             .getDriver(driverName));

    }

    public IVectorialDatabaseDriver getDriver() {

        return this.dbDriver;

    }

    /* FIXME: esto tendria que tener declarado un throws de algo*/

    public void wakeUp() {

        if (!loaded) {

            try {

                this.load();

            }

            catch (DriverIOException e) {

                // TODO Auto-generated catch block

                e.printStackTrace();

            }

        }

    }

    public void load() throws DriverIOException {

        if ((this.getName() == null) || (this.getName().length() == 0)) {

            this.setAvailable(false);

            //TODO: traducir???

            throw new DriverIOException("No se ha especificado nombre de capa");

        }

        if (this.dbDriver == null) {

            this.setAvailable(false);

            //TODO: traducir???

            throw new DriverIOException("No se ha especificado driver");

        }

        if (this.getProjection() == null) {

            this.setAvailable(false);

            //TODO: traducir???

            throw new DriverIOException("No se ha especificado proyeccion");

        }

        try {

            ((IVectorialDatabaseDriver) this.dbDriver).load();

        }

        catch (Exception e) {

            this.setAvailable(false);

            throw new DriverIOException(e);

        }

        try {

            VectorialDBAdapter dbAdapter = new VectorialDBAdapter();

            dbAdapter.setDriver(this.dbDriver);

            this.setSource(dbAdapter);

        }

        catch (Exception e) {

            this.setAvailable(false);

            throw new DriverIOException(e);

        }

        try {

            this.putLoadSelection();

            this.putLoadLegend();

            this.initializeLegendDefault();

        }

        catch (Exception e) {

            this.setAvailable(false);

            //TODO: traducir???

            throw new DriverIOException(e);

        }

        this.cleanLoadOptions();

    }

    /* Esto deberia ir en FLyrVect */

    private void initializeLegendDefault()

        throws FieldNotFoundException, DriverException {

        if (this.getLegend() == null) {

            if (this.getRecordset().getDriver() instanceof WithDefaultLegend) {

                WithDefaultLegend aux = (WithDefaultLegend) this.getRecordset()

                                                                .getDriver();

                this.setLegend((VectorialLegend) aux.getDefaultLegend());

            }

            else {

                this.setLegend(LegendFactory.createSingleSymbolLegend(

                        this.getShapeType()));

            }

        }

    }

    public void setXMLEntity(XMLEntity xml) throws XMLException {

        IProjection proj = null;

        if (xml.contains("proj")) {

            proj = CRSFactory.getCRS(xml.getStringProperty("proj"));

        }

        else {

            proj = this.getMapContext().getViewPort().getProjection();

        }

        this.setName(xml.getName());

        this.setProjection(proj);

        String driverName = xml.getStringProperty("db");

        IVectorialDatabaseDriver driver;

        try {

            driver = (IVectorialDatabaseDriver) LayerFactory.getDM()

                                                           .getDriver(driverName);

            //Hay que separar la carga de los datos del XMLEntity del load.

            driver.setXMLEntity(xml.getChild(2));

            this.setDriver(driver);

        }

        catch (Exception e) {

            throw new XMLException(e);

        }

        super.setXMLEntityNew(xml);

    }

}