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.gdal.prov.gml;

import java.io.File;

import org.gdal.ogr.DataSource;

import org.gdal.ogr.Driver;

import org.gdal.ogr.ogr;

import org.gvsig.fmap.dal.DataParameters;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.DataStoreProvider;

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

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

import org.gvsig.gdal.prov.ogr.BasicOGRDataStoreProviderFactory;

import org.gvsig.gdal.prov.ogr.OGRDataStoreProviderFactory;

import org.gvsig.tools.dynobject.DynObject;

/**

 * @author <a href="mailto:lmarques@disid.com">Lluis Marques</a>

 *

 */

public class GMLDataStoreProviderFactory extends BasicOGRDataStoreProviderFactory implements

    OGRDataStoreProviderFactory {

    private static final String DRIVER_NAME = "GML";

    /**

     * @param name

     *            Name of factory

     * @param description

     *            Description of factory

     */

    public GMLDataStoreProviderFactory(String name, String description) {

        super(name, description);

    }

    @Override

    public DataStoreProvider createProvider(DataParameters dataParameters,

        DataStoreProviderServices providerServices) throws InitializeException {

        return new GMLDataStoreProvider((DataStoreParameters) dataParameters, providerServices);

    }

    @Override

    public DynObject createParameters() {

        return new GMLDataStoreParameters();

    }

    @Override

    public DynObject createParameters(Object connectionObject) {

        if (canOpen(connectionObject)) {

            return new GMLDataStoreParameters();

        }

        return null;

    }

    @Override

    public DynObject createDataExplorerParameters(Object connectionObject) {

        if (canOpen(connectionObject)) {

            return new GMLDataExplorerParameters();

        }

        return null;

    }

    private boolean canOpen(Object connectionObject) {

        if (connectionObject instanceof File) {

            File file = (File) connectionObject;

            if (file.isFile() && file.exists()) {

                Driver driver = ogr.GetDriverByName(getDriver());

                DataSource dataSource = driver.Open(file.getAbsolutePath());

                if (dataSource != null) {

                    dataSource.delete();

                    dataSource = null;

                    return true;

                }

            }

        } else if (connectionObject instanceof String) {

            String connectionString = (String) connectionObject;

            Driver driver = ogr.GetDriverByName(getDriver());

            DataSource dataSource = driver.Open(connectionString);

            if (dataSource != null) {

                dataSource.delete();

                dataSource = null;

                return true;

            }

        } else {

            throw new IllegalArgumentException(

                "Connection object must be a file or a connection string");

        }

        return false;

    }

    @Override

    public String getDriver() {

        return DRIVER_NAME;

    }

}