| gvSIG desktop 1

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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.

 *

 */

/*

* AUTHORS (In addition to CIT):

* 2008 IVER T.I. S.A.   {{Task}}

*/

/**

 *

 */

package org.gvsig.fmap.dal.store.shp;

import java.io.File;

import java.io.IOException;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.NewDataStoreParameters;

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

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

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

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

import org.gvsig.fmap.dal.feature.EditableFeatureType;

import org.gvsig.fmap.dal.feature.FeatureType;

import org.gvsig.fmap.dal.resource.file.FileResource;

import org.gvsig.fmap.dal.resource.spi.ResourceProvider;

import org.gvsig.fmap.dal.store.dbf.DBFFilesystemServerProvider;

/**

 * @author jmvivo

 *

 */

public class SHPFilesystemServerProvider extends DBFFilesystemServerProvider {

        public boolean accept(File pathname) {

                return pathname.getName().toLowerCase().endsWith(".shp");

        }

        public boolean canCreate() {

                return true;

        }

        public boolean canCreate(NewDataStoreParameters parameters) {

                if (!super.canCreate(parameters)) {

                        return false;

                }

                SHPNewStoreParameters params = (SHPNewStoreParameters) parameters;

                if (params.getSHPFile().getParentFile().canWrite()) {

                        return false;

                }

                if (params.getSHPFile().exists()) {

                        if (!params.getSHPFile().canWrite()) {

                                return false;

                        }

                }

                if (params.getSHXFile().getParentFile().canWrite()) {

                        return false;

                }

                if (params.getSHXFile().exists()) {

                        if (!params.getSHXFile().canWrite()) {

                                return false;

                        }

                }

                return true;

        }

        public boolean closeResourceRequested(ResourceProvider resource) {

                // while it is using a resource anyone can't close it

                return false;

        }

        public void create(NewDataStoreParameters parameters, boolean overwrite)

        throws CreateException {

                SHPNewStoreParameters params = (SHPNewStoreParameters) parameters;

                FeatureType fType = params.getDefaultFeatureType();

                // TODO Comprobar que el campo de geometria

                EditableFeatureType dbfFtype = fType.getEditable();

                SHPStoreProvider.removeGeometryColumn(dbfFtype);

                File shpFile = params.getSHPFile();

                File shxFile = params.getSHXFile();

                if (shpFile.exists()) {

                        if (overwrite) {

                                if (!shpFile.delete()) {

                                        throw new CreateException(this.getDataStoreProviderName(), new IOException(

                                                        "cannot delete file: " + shpFile.getPath()));

                                }

                                if (shxFile.exists()) {

                                        if (!shxFile.delete()) {

                                                throw new CreateException(this.getDataStoreProviderName(),

                                                                new IOException("cannot delete file: "

                                                                                + shxFile.getPath()));

                                        }

                                }

                        } else {

                                throw new CreateException(this.getDataStoreProviderName(),

                                                new IOException(

                                                "file already exist"));

        }

                }

                FileResource resource;

                try {

                        resource = (FileResource) this.serverExplorer

                                        .getServerExplorerProviderServices().createResource(

                                                        FileResource.NAME,

                                        new Object[] { shpFile.getAbsolutePath() });

                } catch (InitializeException e1) {

                        throw new CreateException(shpFile.getPath(), e1);

                }

                resource.addConsumer(this);

                SHPFeatureWriter writer = null;

                try {

                        resource.begin();

                        writer = new SHPFeatureWriter(this.getDataStoreProviderName());

                        writer.begin(params, fType, dbfFtype, 0);

                        writer.end();

                        resource.notifyChanges();

                } catch (Exception e) {

                        throw new CreateException(this.getDataStoreProviderName(), e);

                } finally {

                        resource.end();

                        resource.removeConsumer(this);

                }

        }

        public NewDataStoreParameters getCreateParameters() {

                SHPNewStoreParameters params = (SHPNewStoreParameters) super

                                .getCreateParameters();

                EditableFeatureType fType = (EditableFeatureType) params

                                .getDefaultFeatureType();

                SHPStoreProvider.addGeometryColumn(fType);

                params.setDefaultFeatureType(fType);

                return params;

        }

        protected NewDataStoreParameters createInstanceNewDataStoreParameters() {

                return new SHPNewStoreParameters();

        }

        public String getDataStoreProviderName() {

                return SHPStoreProvider.NAME;

        }

        public String getDescription() {

                return SHPStoreProvider.DESCRIPTION;

        }

        public DataStoreParameters getParameters(File file) throws DataException {

                DataManager manager = DALLocator.getDataManager();

                SHPStoreParameters params = (SHPStoreParameters) manager

                                .createStoreParameters(this.getDataStoreProviderName());

                params.setSHPFileName(file.getPath());

                return params;

        }

        public void remove(DataStoreParameters parameters) throws RemoveException {

                // TODO Auto-generated method stub

                super.remove(parameters);

        }

}