Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 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 3

 * 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.fmap.dal.store.simplereader;

import java.io.File;

import java.io.IOException;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.DataStoreParameters;

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

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

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

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

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

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

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

import org.gvsig.fmap.dal.serverexplorer.filesystem.impl.AbstractFilesystemServerExplorerProvider;

import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProvider;

import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProviderServices;

import org.gvsig.tools.dataTypes.DataTypes;

public abstract class SimpleReaderFilesystemServerProvider extends AbstractFilesystemServerExplorerProvider

        implements FilesystemServerExplorerProvider, ResourceConsumer {

    protected FilesystemServerExplorerProviderServices serverExplorer;

    protected abstract String getFileExtension(); // ej: .csv .gml .kml

    @Override

    public int getMode() {

        return DataServerExplorer.MODE_FEATURE | DataServerExplorer.MODE_GEOMETRY;

    }

    @Override

    public boolean accept(File file) {

        String pathname = file.getName().toLowerCase();

        if ( pathname.endsWith(this.getFileExtension())){

            return true;

        }

        return false;

    }

    @Override

    public boolean canCreate() {

        return false;

    }

    @Override

    public void initialize(FilesystemServerExplorerProviderServices serverExplorer) {

        this.serverExplorer = serverExplorer;

    }

    @Override

    public void remove(DataStoreParameters parameters) throws RemoveException {

        SimpleReaderStoreParameters params = (SimpleReaderStoreParameters) parameters;

        File file = params.getFile();

        if (!file.exists()) {

            throw new RemoveException(this.getDataStoreProviderName(),

                    new FileNotFoundException(params.getFile()));

        }

        if (!file.delete()) {

            throw new RemoveException(this.getDataStoreProviderName(),

                    new IOException()); // FIXME Exception

        }

    }

    @Override

    public boolean closeResourceRequested(ResourceProvider resource) {

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

        return !(this.equals(resource));

    }

    /*

         * (non-Javadoc)

         *

         * @see

         * org.gvsig.fmap.dal.resource.spi.ResourceConsumer#resourceChanged(org.

         * gvsig.fmap.dal.resource.spi.ResourceProvider)

     */

    @Override

    public void resourceChanged(ResourceProvider resource) {

        // Do nothing

    }

    protected EditableFeatureType fixFeatureType(FeatureType featureType) {

        EditableFeatureType newFeatureType;

        if (featureType instanceof EditableFeatureType) {

            newFeatureType = (EditableFeatureType) featureType.getCopy();

        } else {

            newFeatureType = featureType.getEditable();

        }

        for (int i = 0; i < newFeatureType.size(); i++) {

            EditableFeatureAttributeDescriptor attr = (EditableFeatureAttributeDescriptor) newFeatureType.getAttributeDescriptor(i);

            String s;

            switch (attr.getType()) {

                case DataTypes.INT:

                    s = String.valueOf(Integer.MAX_VALUE);

                    attr.setSize(18);

                    attr.setPrecision(0);

                    attr.setScale(0);

                    break;

                case DataTypes.LONG:

                    s = String.valueOf(Long.MAX_VALUE);

                    attr.setSize(18);

                    attr.setPrecision(0);

                    attr.setScale(0);

                    break;

                case DataTypes.FLOAT:

                    attr.setSize(18);

                    attr.setPrecision(6);

                    attr.setScale(0);

                    break;

                case DataTypes.DOUBLE:

                    attr.setSize(18);

                    attr.setPrecision(6);

                    attr.setScale(0);

                    break;

            }

        }

        return newFeatureType;

    }

}