/// <summary>
/// Initializes object using GTFS data feed.
/// </summary>
/// <param name="trips">Trips.</param>
/// <param name="routesInfo">Routes Info.</param>
public GtfsRoutes(Trips trips, RoutesInfo routesInfo)
{
foreach (var trip in trips)
{
List <Stops.Stop> stopsSequence = new List <Stops.Stop>();
foreach (var stopTime in trip.Value.StopTimes)
{
stopsSequence.Add(stopTime.Stop);
}
Route r = new Route(Count, trip.Value.RouteInfo, stopsSequence, trip.Value.Headsign);
if (!list.Contains(r))
{
list.Add(r);
}
else
{
r = list.Find(x => x.Equals(r));
}
trip.Value.Route = r;
r.Trips.Add(trip.Value);
}
}
/// <summary>
/// Merges two collections into one.
/// </summary>
/// <param name="other">The other collection that should be merged.</param>
public void MergeCollections(RoutesInfo other)
{
foreach (var item in other)
{
var info = item.Value;
info.ID = Count; // Reindex the item.
string key;
while (list.ContainsKey(key = DataFeed.RandomString()))
{
; // We can index the item using some random string, since this identificator is only used while initialization. Both data are already initialized.
}
list.Add(key, info);
}
other = null;
}
/// <summary>
/// Initializes object using GTFS data feed.
/// </summary>
/// <param name="routesInfo">Routes Info.</param>
/// <param name="services">Services.</param>
/// <param name="trips">Trips.</param>
public GtfsTrips(System.IO.StreamReader trips, Calendar services, RoutesInfo routesInfo)
{
// Get order of field names.
string[] fieldNames = trips.ReadLine().Split(',');
Dictionary <string, int> dic = new Dictionary <string, int>();
for (int i = 0; i < fieldNames.Length; i++)
{
dic.Add(fieldNames[i].Replace("\"", ""), i);
}
// These fields are required for our purpose.
if (!dic.ContainsKey("route_id"))
{
throw new FormatException("Route ID field name missing.");
}
if (!dic.ContainsKey("service_id"))
{
throw new FormatException("Service ID field name missing.");
}
if (!dic.ContainsKey("trip_id"))
{
throw new FormatException("Trip ID field name missing.");
}
if (!dic.ContainsKey("trip_headsign"))
{
throw new FormatException("Trip headsign field name missing.");
}
while (!trips.EndOfStream)
{
IList <string> tokens = GtfsDataFeed.SplitGtfs(trips.ReadLine());
// Since this application is optimized for Prague, we have to union stations of type Florenc, Florenc - B, Florenc - C. Otherwise they would become three separate stations.
string headsign = tokens[dic["trip_headsign"]].Length > 4 && tokens[dic["trip_headsign"]][tokens[dic["trip_headsign"]].Length - 3] == '-' ? tokens[dic["trip_headsign"]].Substring(0, tokens[dic["trip_headsign"]].Length - 4) : tokens[dic["trip_headsign"]];
// The same for Újezd LD and Újezd.
headsign = headsign.Length > 4 && headsign.Substring(headsign.Length - 4, 4) == " LD" ? headsign.Substring(0, headsign.Length - 4) : headsign;
headsign = headsign.Length > 3 && headsign.Substring(headsign.Length - 3, 3) == " LD" ? headsign.Substring(0, headsign.Length - 3) : headsign;
Trip trip = new Trip(Count, headsign, routesInfo[tokens[dic["route_id"]]], services[tokens[dic["service_id"]]]);
list.Add(tokens[dic["trip_id"]], trip);
}
trips.Dispose();
}
/// <summary>
/// Creates data feed that is required in GUI.
/// </summary>
/// <param name="path">Path to the folder that will be the feed saved to.</param>
public void CreateBasicData(string path)
{
if (Directory.Exists(path))
{
Directory.Delete(path, true);
}
Directory.CreateDirectory(path);
RoutesInfo.WriteBasic(new StreamWriter(path + "/routes_info.tfb"));
Stops.WriteBasic(new StreamWriter(path + "/stops.tfb"));
Stations.WriteBasic(new StreamWriter(path + "/stations.tfb"));
Random random = new Random();
var version = new string(Enumerable.Repeat("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", 10).Select(s => s[random.Next(s.Length)]).ToArray()); // Create a new version stamp if not exists.
using (var sw = new StreamWriter(path + "/.version"))
sw.WriteLine(version);
}
/// <summary>
/// Creates data feed that is required for the application.
/// </summary>
/// <param name="path">Path to the folder that will be the feed saved to.</param>
public void CreateDataFeed(string path)
{
if (Directory.Exists(path))
{
Directory.Delete(path, true);
}
Directory.CreateDirectory(path);
Trips.Write(new StreamWriter(path + "/trips.tfd")); // This MUST come first because of trip reindexation (based on sorting).
Stations.Write(new StreamWriter(path + "/stations.tfd")); // This MUST come first because of stations reindexation (based on sorting).
Calendar.Write(new StreamWriter(path + "/calendar.tfd"));
CalendarDates.Write(new StreamWriter(path + "/calendar_dates.tfd"));
RoutesInfo.Write(new StreamWriter(path + "/routes_info.tfd"));
Stops.Write(new StreamWriter(path + "/stops.tfd"));
Footpaths.Write(new StreamWriter(path + "/footpaths.tfd"));
StopTimes.Write(new StreamWriter(path + "/stop_times.tfd"));
Routes.Write(new StreamWriter(path + "/routes.tfd"));
using (var expiration = new StreamWriter(path + "/expires.tfd"))
expiration.Write(ExpirationDate.ToString("yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture));
}
