/* * Copyright 2010, 2011, 2012 mapsforge.org * * This program is free software: you can redistribute it and/or modify it under the * terms of the GNU Lesser 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ package org.mapsforge.android.maps.mapgenerator; import org.mapsforge.android.maps.mapgenerator.databaserenderer.DatabaseRenderer; import org.mapsforge.android.maps.mapgenerator.tiledownloader.MapnikTileDownloader; import org.mapsforge.android.maps.mapgenerator.tiledownloader.OpenCycleMapTileDownloader; import android.util.AttributeSet; /** * A factory for the internal MapGenerator implementations. */ public final class MapGeneratorFactory { private static final String MAP_GENERATOR_ATTRIBUTE_NAME = "mapGenerator"; /** * @param attributeSet * A collection of attributes which includes the desired MapGenerator. * @return a new MapGenerator instance. */ public static MapGenerator createMapGenerator(AttributeSet attributeSet) { String mapGeneratorName = attributeSet.getAttributeValue(null, MAP_GENERATOR_ATTRIBUTE_NAME); if (mapGeneratorName == null) { return new DatabaseRenderer(); } MapGeneratorInternal mapGeneratorInternal = MapGeneratorInternal.valueOf(mapGeneratorName); return MapGeneratorFactory.createMapGenerator(mapGeneratorInternal); } /** * @param mapGeneratorInternal * the internal MapGenerator implementation. * @return a new MapGenerator instance. */ public static MapGenerator createMapGenerator(MapGeneratorInternal mapGeneratorInternal) { switch (mapGeneratorInternal) { case DATABASE_RENDERER: return new DatabaseRenderer(); case MAPNIK: return new MapnikTileDownloader(); case OPENCYCLEMAP: return new OpenCycleMapTileDownloader(); } throw new IllegalArgumentException("unknown enum value: " + mapGeneratorInternal); } private MapGeneratorFactory() { throw new IllegalStateException(); } }