RelayParkService.java

/*******************************************************************************
 * Copyright (c) 2011 Michel DAVID mimah35-at-gmail.com
 * 
 * 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.
 * 
 * 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 fr.gotorennes.remote;

import java.util.ArrayList;
import java.util.List;

import org.json.JSONException;
import org.json.JSONObject;

import android.content.Context;
import fr.gotorennes.domain.RelayPark;

public class RelayParkService extends RemoteService<RelayPark> {

	private static RelayParkService instance;

	private RelayParkService(Context context) {
		super();
	}

	public static synchronized RelayParkService getInstance(Context context) {
		if (instance == null) {
			instance = new RelayParkService(context);
		}
		return instance;
	}

	private long lastUpdate = 0;
	private List<RelayPark> cache = null;

	public List<RelayPark> getRelayParks() {
		if (cache == null || System.currentTimeMillis() - lastUpdate > 60000) {
			cache = loadList();
			if (cache != null) {
				lastUpdate = System.currentTimeMillis();
			}
		}
		return cache != null ? new ArrayList<RelayPark>(cache) : cache;
	}

	public List<RelayPark> getRelayParks(double latitudeMin, double latitudeMax, double longitudeMax, double longitudeMin) {
		List<RelayPark> relayParks = getRelayParks();
		if (relayParks == null) {
			return null;
		}
		List<RelayPark> result = new ArrayList<RelayPark>();
		for (RelayPark parc : relayParks) {
			if (parc.latitude >= latitudeMin && parc.latitude <= latitudeMax && parc.longitude >= longitudeMin && parc.longitude <= longitudeMax) {
				result.add(parc);
			}
		}
		return result;
	}

	public List<RelayPark> getProximityRelayParks(double latitude, double longitude) {
		return loadProximityList(latitude, longitude, 3);
	}

	public RelayPark getRelayPark(String name) {
		List<RelayPark> relayParks = getRelayParks();
		if (relayParks == null) {
			return null;
		}

		for (RelayPark relayPark : relayParks) {
			if (relayPark.name.equals(name)) {
				return relayPark;
			}
		}
		return null;
	}

	@Override
	protected RelayPark populate(JSONObject jsonObject) throws JSONException {
		RelayPark relayPark = new RelayPark();
		relayPark.name = jsonObject.getString("nom");
		
		String etat = jsonObject.getString("etat");
		if ("Fermé".equals(etat)) {
			relayPark.state = 1;
		}
		else if ("Complet".equals(etat)) {
			relayPark.state = 2;
		}
		
		relayPark.capacity = Integer.parseInt(jsonObject.getString("capaciteactuelle"));
		relayPark.available = Integer.parseInt(jsonObject.getString("nombreplacesdisponibles"));
		relayPark.latitude = jsonObject.getJSONArray("coordonnees").getDouble(0);
		relayPark.longitude = jsonObject.getJSONArray("coordonnees").getDouble(1);
		return relayPark;
	}

	@Override
	protected String getDataSet() {
		return "tco-parcsrelais-etat-tr";
	}

}