Application: gvSIG desktop » gvSIG raster

/* TileRasterCache, a library to download tiles from several sources.

 *

 * Copyright (C) 2010 Prodevelop SL.

 *

 * 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:

 *  

 *   Prodevelop Integraci�n de Tecnolog�as SL

 *   Plaza don Juan de Vilarrasa , 14-5

 *   46000 Valencia

 *   Spain

 *

 *   +34 963 510 612

 *   +34 963 510 968

 *   gis@prodevelop.es

 *   http://www.prodevelop.es

 *   

 *   author: Alberto Romeu Carrasco (aromeu@prodevelop.es)

 */

package org.gvsig.raster.cache.tile.impl.disk;

import java.io.File;

/**

 * This IFileSystemStrategy creates a directory for each zoom level of a layer.

 * Inside the directory of a zoom level, creates a directory for each X row and

 * inside the directory of an X row stores a file with the Y row, so

 * OSM/0/0/0.tile represents the tile http://osm/0/0/0.png

 * 

 * This strategy is the most spread for mobile map viewers (although is not the most efficient)

 * @author aromeu

 *

 */

public class FlatXFileSystemStrategy extends DefaultFileSystemStrategy {

        public FlatXFileSystemStrategy() {

                super();

        }

        public FlatXFileSystemStrategy(String tileNameSuffix) {

                super(tileNameSuffix);                

        }

        public String getRelativeToLayerDirTilePath(int row, 

                        int col, 

                        int zoomLevel, 

                        String var, 

                        String z, 

                        String time) {

                if(zoomLevel < 0) {  //Real zoom level

                        return new StringBuffer()

                        .append(var)

                        .append(File.separator)

                        .append(z)

                        .append(File.separator)

                        .append(time)

                        .append(File.separator)

                        .append("real")

                        .append(File.separator)

                        .append(col)

                        .append(File.separator)

                        .append(row).toString();

                } else {

                        return new StringBuffer()

                        .append(var)

                        .append(File.separator)

                        .append(z)

                        .append(File.separator)

                        .append(time)

                        .append(File.separator)

                        .append(zoomLevel)

                        .append(File.separator)

                        .append(col)

                        .append(File.separator)

                        .append(row).toString();

                }

        }

        public String getLayerNameSuffix() {

                return "_flatx";

        }        

        public String getName() {

                return FLATX;

        }        

}