/// <summary>
/// Set new flight.
/// </summary>
/// <param name="flightName"></param>
/// <param name="timeoutInMinutes"></param>
public void SetFlight(string flightName, int timeoutInMinutes)
{
CodeContract.RequiresArgumentNotNullAndNotWhiteSpace(flightName, "flightName");
if (timeoutInMinutes < 0)
{
throw new ArgumentException("Flight expiration timeout can't be negative", "timeoutInMinutes");
}
flightName = flightName.ToLowerInvariant();
DateTimeOffset expiration = DateTimeOffset.UtcNow.AddMinutes(timeoutInMinutes);
lock (lockObject)
{
IEnumerable <string> rawFlights = GetRawFlights();
foreach (string item in rawFlights)
{
FlightInformation flightInformation = FlightInformation.Parse(item);
if (flightInformation != null && flightInformation.Flight == flightName)
{
return;
}
}
SetRawFlights(rawFlights.Union(new string[1]
{
new FlightInformation(flightName, expiration).ToString()
}));
}
}
public void Start()
{
List <string> list = new List <string>();
bool flag = false;
lock (lockObject)
{
foreach (string rawFlight in GetRawFlights())
{
FlightInformation flightInformation = FlightInformation.Parse(rawFlight);
if (flightInformation != null && flightInformation.ExpirationTime > DateTimeOffset.UtcNow)
{
list.Add(rawFlight);
}
else
{
flag = true;
}
}
if (flag)
{
SetRawFlights(list);
}
}
}
/// <summary>
/// Raw flight data are in the format: "flight_name#yyyy-MM-dd HH:mm:ssZ".
/// First part (before '#') is the flight name and second part (after '#') is the expiration date of the flight.
/// Return clean set of the flight (without expired flights).
/// </summary>
/// <param name="rawFlights"></param>
/// <returns></returns>
private IEnumerable <string> ConvertRawDataToPlainFlights(IEnumerable <string> rawFlights)
{
foreach (string rawFlight in rawFlights)
{
FlightInformation flightInformation = FlightInformation.Parse(rawFlight);
if (flightInformation != null && flightInformation.ExpirationTime > DateTimeOffset.UtcNow)
{
yield return(flightInformation.Flight);
}
}
}