public void Dispose()
{
if (sessionCallback != null)
{
CallbacksHolder.Instance().Remove(sessionCallback);
}
}
//assuming the airplane is already in a station...
public void MoveToNextStation(Object o)
{
Flight flight = (Flight)o;
Station nextStation;
if (flight.State == Models.State.Landing)
{
nextStation = GetShortestQueue(flight.CurrentStation.NextLandingStations);
}
else
{
nextStation = GetShortestQueue(flight.CurrentStation.NextFlyingStations);
}
if (nextStation == null || nextStation.EnqueueFlight(flight))
{
Station prevStation = flight.CurrentStation;
flight.CurrentStation = nextStation;
if (nextStation != null)
{
CallbacksHolder.Instance().StationStateUpdate(nextStation);
new Timer(MoveToNextStation, flight, rnd.Next(10000, 60000), 0);
}
else
{
// add to history...
}
HandlePrevStation(prevStation);
}
}
public static CallbacksHolder Instance()
{
if (self == null)
{
self = new CallbacksHolder();
}
return(self);
}
private void InitCallback()
{
sessionCallback = null;
OperationContext opCtx = OperationContext.Current;
if (opCtx != null)
{
sessionCallback = opCtx.GetCallbackChannel <IAirportDuplexCallback>();
CallbacksHolder.Instance().Add(sessionCallback);
}
}
public void StartTakingOff(Flight flight)
{
Station st;
st = GetShortestQueue(airport.FirstFlyingStations);
// if this is the only flight in station
if (st.EnqueueFlight(flight))
{
CallbacksHolder.Instance().StationStateUpdate(st);
flight.CurrentStation = st;
Timer timer = new Timer(MoveToNextStation, flight, rnd.Next(10000, 60000), 0);
}
}
private Flight GetFlight()
{
if (flights.Count == 0)
{
return(null);
}
DTOs.FlightDTO flightDTO = flights.First();
Flight flight = new Flight()
{
ID = flightDTO.ID,
State = (Models.State)Enum.Parse(typeof(Models.State), flightDTO.State.ToString()),
CurrentStation = null,
StartRouteTime = flightDTO.StartRouteTime
};
flights.Remove(flightDTO);
CallbacksHolder.Instance().FlightRemove(flightDTO);
return(flight);
}
private void HandlePrevStation(Station station)
{
if (station == null)
{
return;
}
// pops the flight currently in the station and get the next one
Flight flight = station.DequeueFlight();
CallbacksHolder.Instance().StationStateUpdate(station);
// if there's a next flight
if (flight != null)
{
Station prevStation = flight.CurrentStation;
flight.CurrentStation = station;
new Timer(MoveToNextStation, flight, rnd.Next(10000, 60000), 0);
HandlePrevStation(prevStation);
}
}
public bool ScheduleNewFlight(DTOs.FlightDTO flightDTO)
{
//add new flight to the db schedule table and get it back with unique id
DTOs.FlightDTO newFlight = repo.AddFlightToSchedule(flightDTO);
DTOs.FlightDTO firstFlight = flights.Count == 0 ? null : flights.First();
if (newFlight == null)
{
return(false);
}
if (!flights.Add(newFlight))
{
return(false);
}
CallbacksHolder.Instance().FlightAdd(newFlight);
if (firstFlight == null || newFlight.StartRouteTime < firstFlight.StartRouteTime)
{
TimeSpan timeUntilNextFlight = GetNextTimeSpan();
scheduleTimer.Change(timeUntilNextFlight, timeUntilNextFlight);
}
return(true);
}
