public void Aircraft_UpdateCoordinates_Adds_Coordinate_To_Full_And_Short_Trails()
{
var now = DateTime.UtcNow;
_Aircraft.DataVersion = now.Ticks + 1;
_Aircraft.Latitude = 10;
_Aircraft.Longitude = 20;
_Aircraft.Track = 30;
_Aircraft.UpdateCoordinates(now, 30);
Assert.AreEqual(1, _Aircraft.FullCoordinates.Count);
Assert.AreEqual(1, _Aircraft.ShortCoordinates.Count);
var fullCoordinate = _Aircraft.FullCoordinates[0];
Assert.AreEqual(10f, fullCoordinate.Latitude);
Assert.AreEqual(20f, fullCoordinate.Longitude);
Assert.AreEqual(30f, fullCoordinate.Heading);
Assert.AreEqual(now.Ticks + 1, fullCoordinate.DataVersion);
Assert.AreEqual(now.Ticks, fullCoordinate.Tick);
var shortCoordinate = _Aircraft.ShortCoordinates[0];
Assert.AreEqual(10f, shortCoordinate.Latitude);
Assert.AreEqual(20f, shortCoordinate.Longitude);
Assert.AreEqual(30f, shortCoordinate.Heading);
Assert.AreEqual(now.Ticks + 1, shortCoordinate.DataVersion);
Assert.AreEqual(now.Ticks, shortCoordinate.Tick);
}
private void ApplyMessageToAircraft(BaseStationMessage message, IAircraft aircraft, bool isNewAircraft)
{
// We want to retrieve all of the lookups without writing anything to the aircraft. Then all of the values
// that need changing on the aircraft will be set in one lock with one DataVersion so they're all consistent.
CodeBlock codeBlock = null;
Route route = null;
if(isNewAircraft) codeBlock = StandingDataManager.FindCodeBlock(message.Icao24);
bool callsignChanged;
string operatorIcao;
lock(aircraft) { // <-- nothing should be changing Callsign, we're the only thread that writes it, but just in case...
callsignChanged = !String.IsNullOrEmpty(message.Callsign) && message.Callsign != aircraft.Callsign;
operatorIcao = aircraft.OperatorIcao;
}
if(callsignChanged) route = LookupRoute(message.Callsign, operatorIcao);
var track = CalculateTrack(message, aircraft);
lock(aircraft) {
var now = Provider.UtcNow;
GenerateDataVersion(aircraft);
aircraft.LastUpdate = now;
++aircraft.CountMessagesReceived;
if(isNewAircraft) aircraft.FirstSeen = now;
if(aircraft.Icao24 == null) aircraft.Icao24 = message.Icao24;
if(!String.IsNullOrEmpty(message.Callsign)) aircraft.Callsign = message.Callsign;
if(message.Altitude != null) aircraft.Altitude = message.Altitude;
if(message.GroundSpeed != null) aircraft.GroundSpeed = message.GroundSpeed;
if(track != null) aircraft.Track = track;
if(message.Track != null && message.Track != 0.0) aircraft.IsTransmittingTrack = true;
if(message.Latitude != null) aircraft.Latitude = message.Latitude;
if(message.Longitude != null) aircraft.Longitude = message.Longitude;
if(message.VerticalRate != null) aircraft.VerticalRate = message.VerticalRate;
if(message.OnGround != null) aircraft.OnGround = message.OnGround;
if(message.Squawk != null) {
aircraft.Squawk = message.Squawk;
aircraft.Emergency = message.Squawk == 7500 || message.Squawk == 7600 || message.Squawk == 7700;
}
var supplementaryMessage = message != null && message.Supplementary != null ? message.Supplementary : null;
if(supplementaryMessage != null) {
if(supplementaryMessage.SpeedType != null) aircraft.SpeedType = supplementaryMessage.SpeedType.Value;
if(supplementaryMessage.CallsignIsSuspect != null) aircraft.CallsignIsSuspect = supplementaryMessage.CallsignIsSuspect.Value;
}
ApplyCodeBlock(aircraft, codeBlock);
ApplyRoute(aircraft, route);
if(message.Latitude != null && message.Longitude != null) aircraft.UpdateCoordinates(now, _ShortTrailLengthSeconds);
}
if(isNewAircraft) _DatabaseLookupQueue.Enqueue(new DatabaseLookup(aircraft, true, true));
}