OsmLanduseJsonTileSource.java

/*
 * Copyright 2014 Hannes Janetzek
 *
 * This file is part of the OpenScienceMap project (http://www.opensciencemap.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.oscim.tiling.source.geojson;

import java.util.LinkedHashMap;
import java.util.Map;

import org.oscim.core.GeometryBuffer.GeometryType;
import org.oscim.core.MapElement;
import org.oscim.core.Tag;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class OsmLanduseJsonTileSource extends GeoJsonTileSource {
	static final Logger log = LoggerFactory.getLogger(OsmLanduseJsonTileSource.class);

	public OsmLanduseJsonTileSource() {
		super("http://tile.openstreetmap.us/vectiles-land-usages");
	}

	private static LinkedHashMap<String, Tag> mappings =
	        new LinkedHashMap<String, Tag>();

	static void addMapping(String key, String val) {
		mappings.put(val, new Tag(key, val));
	}

	static {
		addMapping("landuse", "residential");
		addMapping("landuse", "commercial");
		addMapping("landuse", "retail");
		addMapping("landuse", "railway");
		addMapping("landuse", "grass");
		addMapping("landuse", "meadow");
		addMapping("landuse", "forest");
		addMapping("landuse", "farm");
		addMapping("landuse", "allotments");
		addMapping("landuse", "cemetery");
		addMapping("landuse", "farmyard");
		addMapping("landuse", "farmland");
		addMapping("landuse", "quarry");
		addMapping("landuse", "military");
		addMapping("landuse", "industrial");
		addMapping("landuse", "greenfield");
		addMapping("landuse", "village_green");
		addMapping("landuse", "recreation_ground");
		addMapping("landuse", "conservation");
		addMapping("landuse", "landfill");
		addMapping("landuse", "construction");

		addMapping("leisure", "common");
		addMapping("leisure", "park");
		addMapping("leisure", "pitch");
		addMapping("leisure", "garden");
		addMapping("leisure", "sports_centre");
		addMapping("leisure", "playground");
		addMapping("leisure", "nature_reserve");
		addMapping("leisure", "golf_course");
		addMapping("leisure", "stadium");

		addMapping("amenity", "hospital");
		addMapping("amenity", "cinema");
		addMapping("amenity", "school");
		addMapping("amenity", "college");
		addMapping("amenity", "university");
		addMapping("amenity", "theatre");
		addMapping("amenity", "library");
		addMapping("amenity", "parking");
		addMapping("amenity", "place_of_worship");

		addMapping("highway", "pedestrian");
		addMapping("highway", "footway");
		addMapping("highway", "service");
		addMapping("highway", "street");

		addMapping("natural", "scrub");
		addMapping("natural", "wood");

		mappings.put("urban area", new Tag("landuse", "urban"));
		mappings.put("park or protected land", new Tag("leisure", "park"));
	}

	private final static Tag mTagArea = new Tag("area", "yes");

	@Override
	public void decodeTags(MapElement mapElement, Map<String, Object> properties) {

		for (Map.Entry<String, Object> entry : properties.entrySet()) {
			String key = entry.getKey();

			if (!"kind".equals(key))
				continue;

			String value = (String) entry.getValue();

			Tag tag = mappings.get(value);
			if (tag == null) {
				System.out.println("unmatched " + value);
			} else {
				mapElement.tags.add(tag);
			}
			break;
		}
	}

	@Override
	public void postGeomHook(MapElement mapElement) {
		//if (mapElement.type != GeometryType.POLY) {
		mapElement.type = GeometryType.POLY;
		mapElement.tags.add(mTagArea);
		//}
	}
}