NextDepartureService.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.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

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

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

public class NextDepartureService extends RemoteService<NextDeparture> {

	private static DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz");

	private static NextDepartureService instance;
	
	private Date remoteDate;

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

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

	public NextDeparture getNextDeparture(String stopId, String routeId, int direction) {
		return loadObject("refine.idarret=" +  stopId + "&refine.idligne=" + routeId + "&refine.sens=" + direction);
	}

	@Override
	protected NextDeparture populate(JSONObject jsonObject) throws JSONException {
		NextDeparture nextDeparture = new NextDeparture();
		nextDeparture.stopId = jsonObject.getString("idarret");
		nextDeparture.routeId = jsonObject.getString("idcourse");
		nextDeparture.direction = Integer.parseInt(jsonObject.getString("sens"));
		try {
			nextDeparture.departure = dateFormat.parse(jsonObject.getString("depart"));
		}
		catch (ParseException ex) {}
		nextDeparture.remoteDate = remoteDate;
		return nextDeparture;
	}
	
	protected void onDataLoad(JSONObject data) throws JSONException {
		try {
			remoteDate = dateFormat.parse(data.getString("record_timestamp"));
		}
		catch (ParseException ex) {}
	}

	@Override
	protected String getDataSet() {
		return "tco-bus-circulation-passages-tr";
	}

}