/*******************************************************************************
* Copyright (c) MOBAC developers
*
* 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, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package mobac.mapsources.mappacks.openstreetmap;
import java.io.IOException;
import java.util.concurrent.Semaphore;
import mobac.exceptions.TileException;
public class Mapnik extends AbstractOsmMapSource {
private static final String MAP_MAPNIK = "http://tile.openstreetmap.org";
/**
* Maximum of 2 download threads
*
* @see http://wiki.openstreetmap.org/wiki/Tile_usage_policy
*/
private static final Semaphore SEM = new Semaphore(2);
public Mapnik() {
super("Mapnik");
maxZoom = 16;
}
@Override
public byte[] getTileData(int zoom, int x, int y, LoadMethod loadMethod) throws IOException, TileException,
InterruptedException {
SEM.acquire();
try {
return super.getTileData(zoom, x, y, loadMethod);
} finally {
SEM.release();
}
}
@Override
public String getTileUrl(int zoom, int tilex, int tiley) {
return MAP_MAPNIK + super.getTileUrl(zoom, tilex, tiley);
}
public TileUpdate getTileUpdate() {
return TileUpdate.IfNoneMatch;
}
@Override
public String toString() {
return "OpenStreetMap Mapnik";
}
}