Android Open Source - Go2-Rennes Next Metro Departure Service

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License

The source code is released under:

GNU General Public License

Java Source Code

/*******************************************************************************
 * Copyright (c) 2011 Michel DAVID mimah35-at-gmail.com
 * /*from   w  w w  .j ava  2s .c om*/
 * 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.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

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

import android.content.Context;
import android.util.Log;
import fr.gotorennes.domain.NextMetroDeparture;

public class NextMetroDepartureService extends RemoteService<NextMetroDeparture> {

  public static final String COMMAND = "getmetronextdepartures";
  public static final String NODE = "station";
  
  private static DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz");

  private static NextMetroDepartureService instance;

  private NextMetroDepartureService(Context context) {
    super();
  }
  
  protected String getVersion() {
    return "2.2";
  }

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

  public NextMetroDeparture getNextDeparture(String stationId) {
    Map<String, String> parameters = new HashMap<String, String>();
    parameters.put("mode", "station");
    parameters.put("station", stationId);
    return loadObject(COMMAND, NODE, parameters);
  }

  @Override
  protected NextMetroDeparture populate(JSONObject jsonObject) throws JSONException {
    Log.d("GoToRennes", jsonObject.toString());
    NextMetroDeparture nextDeparture = new NextMetroDeparture();
    nextDeparture.nextForwardDeparture = getNextDate(jsonObject, 1);
    nextDeparture.nextBackwardDeparture = getNextDate(jsonObject, 2);
    nextDeparture.remoteDate = new Date();
    return nextDeparture;
  }

  protected Date getNextDate(JSONObject station, int platform) {
    String departure1 = station.optString("nextTrain1Platform" + platform);
    String departure2 = station.optString("nextTrain2Platform" + platform);
    if (departure1 != null && !departure1.equals("")) {
      try {
        Date departureDate = dateFormat.parse(departure1);
        if (departureDate.before(new Date()) && departure2 != null && !departure2.equals("")) {
          departureDate = dateFormat.parse(departure2);
          if (departureDate.before(new Date())) {
            departureDate = null;
          }
        }
        return departureDate;
      }
      catch (Exception ex) {
        Log.e("GoToRennes", "Invalid date format : " + departure1 + " or " + departure2);
      }
    }
    return null;
  }
  

}

Java Source Code List

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