Android Open Source - trip-chain-android Trip

From Project

Back to project page trip-chain-android.

License

The source code is released under:

MIT License

If you think the Android project trip-chain-android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package fi.aalto.tripchain.route;
//w ww.  j  av  a 2  s. c  om
import java.util.ArrayList;
import java.util.List;

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

import fi.aalto.tripchain.Client;

import fi.aalto.tripchain.here.Address;
import android.location.Location;
import android.os.RemoteException;

/**
 * Models a trip as locations, activities, Roads and Route.
 *
 */
public class Trip {  
  private List<Location> locations = new ArrayList<Location>();
  private List<ActivityModel> activities = new ArrayList<ActivityModel>();
  
  private List<Client> clients;
  
  private Roads roads = new Roads();
  private Route route = new Route();
  
  private long startedAt;
  private long stoppedAt;
  
  public void start() {
    startedAt = System.currentTimeMillis();
    
    roads.start();
  }
  
  public void stop() {
    stoppedAt = System.currentTimeMillis();
    
    roads.stop();
  }
  
  
  public Trip(List<Client> clients) {
    this.clients = clients;
  }

  static class ActivityModel {
    final long timestamp;
    final Activity activity;

    public ActivityModel(Activity activity) {
      this.activity = activity;
      this.timestamp = System.currentTimeMillis();
    }
  }

  public void onActivity(Activity activity) {
    if (activity == Activity.TILTING) {
      return;
    }

    ActivityModel am = new ActivityModel(activity);
    this.activities.add(am);

    route.onActivity(am);
  }

  public void onLocation(Location location) {
    this.locations.add(location);

    for (Client c : clients) {
      try {
        c.onLocation(locations);
      } catch (RemoteException e) {
      }
    }
    
    route.onLocation(location);
    roads.onLocation(location);
  }

  public JSONArray toLocations() throws JSONException {
    return toLocations(this.locations);
  }
  
  
  static JSONArray toLocations(List<Location> locations) throws JSONException {
    JSONArray locs = new JSONArray();

    for (Location l : locations) {
      JSONObject location = new JSONObject();
      location.put("time", l.getTime());
      location.put("longitude", l.getLongitude());
      location.put("latitude", l.getLatitude());
      location.put("speed", l.getSpeed());
      location.put("altitude", l.getAltitude());
      location.put("bearing", l.getBearing());
      location.put("accuracy", l.getAccuracy());

      locs.put(location);
    }

    return locs;
  }

  public JSONArray toActivities() throws JSONException {
    JSONArray activities = new JSONArray();

    for (ActivityModel a : this.activities) {
      JSONObject activity = new JSONObject();
      activity.put("time", a.timestamp);
      activity.put("value", a.activity.toString());

      activities.put(activity);
    }

    return activities;
  }
  
  public JSONObject toJson() throws JSONException {
    JSONObject j = new JSONObject();
    j.put("trip", route.toJson());
    j.put("locations", toLocations());
    j.put("activities", toActivities());
    j.put("roads", roads.toJson());
    j.put("startedAt", startedAt);
    j.put("stoppedAt", stoppedAt);
    
    return j;
  }
}

Java Source Code List