Application: gvSIG desktop » gvSIG data providers based on gdal

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2016 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 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., 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.raster.gdal.provider;

import org.gdal.gdal.Driver;

import org.gdal.gdalconst.gdalconstConstants;

import org.gvsig.fmap.dal.DataParameters;

import org.gvsig.fmap.dal.DataStoreProvider;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.OpenException;

import org.gvsig.fmap.dal.raster.spi.AbstractRasterStoreProviderFactory;

import org.gvsig.fmap.dal.raster.spi.RasterStoreProvider;

import org.gvsig.fmap.dal.spi.DataStoreProviderServices;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.DynStruct_v2;

import org.gvsig.tools.persistence.PersistenceManager;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Factory for Raster GDAL provider

 * @author dmartinezizquierdo

 *

 */

public class RasterGdalStoreProviderFactory extends AbstractRasterStoreProviderFactory {

    private static final Logger logger = LoggerFactory.getLogger(RasterGdalStoreProviderFactory.class);

    private Driver gdalDriver;

    private String openingParams;

    protected RasterGdalStoreProviderFactory(String name, String description,Driver gdalDriver, String openingParams) {

        super(name, description);

        this.gdalDriver=gdalDriver;

        this.openingParams=openingParams;

    }

    @Override

    public DataStoreProvider createProvider(DataParameters parameters,

 DataStoreProviderServices providerServices)

        throws InitializeException {

        // FIXME: This drivers are not loaded and maybe will be deployed in

        // their own plugin

        /*

        // POSTGIS uses its own driver

        if (gdalDriver.getShortName().equalsIgnoreCase("PostGISRaster")) {

            return new RasterGdalPostgisStoreProvider((RasterGdalStoreParameters) parameters, providerServices);

        }

        // WCS uses its own driver

        if (gdalDriver.getShortName().equalsIgnoreCase("WCS")) {

            return new RasterGdalWCSStoreProvider((RasterGdalStoreParameters) parameters, providerServices);

        }

        // WMS uses its own driver

        if (gdalDriver.getShortName().equalsIgnoreCase("WMS")) {

            return new RasterGdalWMSStoreProvider((RasterGdalStoreParameters) parameters, providerServices);

        }

        */

        String allowCreate = (String) gdalDriver.GetMetadata_Dict().get(gdalconstConstants.GDAL_DCAP_CREATE);

        String allowCreateCopy = (String) gdalDriver.GetMetadata_Dict().get(gdalconstConstants.GDAL_DCAP_CREATECOPY);

        RasterStoreProvider provider;

        if (allowCreate != null && allowCreate.equalsIgnoreCase("YES")) {

            provider = new RasterGdalStoreProviderCreate((RasterGdalFileStoreParameters) parameters, providerServices);

            // return provider;

        } else if (allowCreateCopy != null && allowCreateCopy.equalsIgnoreCase("YES")) {

            provider =

                new RasterGdalStoreProviderCreateCopy((RasterGdalFileStoreParameters) parameters, providerServices);

        } else {

            provider = new DefaultRasterGdalStoreProvider((RasterGdalFileStoreParameters) parameters, providerServices);

        }

        try {

            provider.open();

        } catch (OpenException e) {

            throw new InitializeException("Can't open provider: ", e);

        }

        return provider;

    }

    /**

     * Creates provider to create a new store

     * @param parameters

     * @return DataStoreProvider

     * @throws InitializeException

     */

    public DataStoreProvider createProvider(DataParameters parameters) throws InitializeException {

        //TODO: If a specific provider must be used, it must be defined here.

//        if (parameters.getDynClass().getName().equals("NewRasterGdalStoreParameters_GTiff") ){

//

//            return new RasterGdalGTiffStoreProvider((NewRasterGdalStoreParameters)parameters,this.gdalDriver);

//

//        }

        String allowCreate=(String)gdalDriver.GetMetadata_Dict().get(gdalconstConstants.GDAL_DCAP_CREATE);

        String allowCreateCopy=(String)gdalDriver.GetMetadata_Dict().get(gdalconstConstants.GDAL_DCAP_CREATECOPY);

        if ( allowCreate!=null && allowCreate.equalsIgnoreCase("YES") ){

            return new RasterGdalStoreProviderCreate((NewRasterGdalStoreParameters)parameters, this.gdalDriver);

        }

        if ( allowCreateCopy!=null && allowCreateCopy.equalsIgnoreCase("YES") ){

            return new RasterGdalStoreProviderCreateCopy((NewRasterGdalStoreParameters)parameters, this.gdalDriver);

        }

        return new DefaultRasterGdalStoreProvider((NewRasterGdalStoreParameters)parameters, this.gdalDriver);

    }

    @Override

    public DynObject createParameters() {

        PersistenceManager persistenceManager = ToolsLocator.getPersistenceManager();

        DynStruct_v2 openingStruct = (DynStruct_v2)persistenceManager.getDefinition(this.openingParams);

        DynStruct_v2 rasterGdalFileStoreParametersStruct = (DynStruct_v2)persistenceManager.getDefinition(RasterGdalFileStoreParameters.PARAMETERS_DEFINITION_NAME);

        if ( openingStruct.isInstance(rasterGdalFileStoreParametersStruct.newInstance()) ){

            return new RasterGdalFileStoreParameters(this.openingParams, getName());

        }else{

            return new  RasterGdalStoreParameters(this.openingParams, getName());

        }

    }

    /**

     * Returns the gdal driver from the provider store factory

     * @return gdalDriver

     */

    public Driver getDriver(){

        return gdalDriver;

    }

}