public Task StartNewFlight(FlightPlan flightPlan)
{
FlightPlan.Validate(flightPlan, includeFlightPath: false);
try
{
return(ErrorHandlingPolicy.ExecuteRequestAsync(async() =>
{
var flyingAirplaneCallSigns = await TableStorageOperationAsync(
() => flyingAirplanesTable_.GetFlyingAirplaneCallSignsAsync(shutdownTokenSource_.Token),
null,
nameof(FlyingAirplanesTable.GetFlyingAirplaneCallSignsAsync));
if (flyingAirplaneCallSigns.Contains(flightPlan.CallSign, StringComparer.OrdinalIgnoreCase))
{
// In real life airplanes can have multiple flight plans filed, just for different times. But here we assume there can be only one flight plan per airplane
throw new InvalidOperationException($"The airplane {flightPlan.CallSign} is already flying");
// CONSIDER forcing execution of the new flight plan here, instead of throwing an error.
}
flightPlan.FlightPath = Dispatcher.ComputeFlightPath(flightPlan.DeparturePoint, flightPlan.Destination);
// The actual creation of the flight will be queued and handled by the time passage routine to ensure that there are no races
// during new world state calculation
newFlightQueue_.Enqueue(flightPlan);
if (logger_.IsEnabled(LogLevel.Information))
{
flightPlan.AddUniverseInfo();
logger_.LogInformation(
LoggingEvents.NewFlightCreated,
"New flight created from {DeparturePoint} to {Destination} for {CallSign}. Clearance is {FlightPath}",
flightPlan.DeparturePoint.Name,
flightPlan.Destination.Name,
flightPlan.CallSign,
flightPlan.FlightPath.Select(fix => fix.Name).Aggregate(string.Empty, (current, fixName) => current + " " + fixName));
}
}));
}
catch (Exception ex)
{
logger_.LogError(LoggingEvents.StartingNewFlightFailed, ex, "Unexpected error occurred when starting new flight");
throw;
}
}