/// <summary>
/// This function is used to sort the list by spec requirement.
/// Client is dumb so sorting is done on server
/// </summary>
/// <param name="obj">Right hand object to test</param>
/// <returns>-1 if this is smaller than obj, otherwise 1</returns>
public int CompareTo(object obj)
{
QueryResultFlight otherFlight = (QueryResultFlight)obj;
if (price < otherFlight.price)
{
return(-1);
}
else if (price > otherFlight.price)
{
return(1);
}
else
{
if (seats > otherFlight.seats)
{
return(-1);
}
else if (seats < otherFlight.seats)
{
return(1);
}
else
{
return(flightNumber.CompareTo(otherFlight.flightNumber));
}
}
}
/// <summary>
/// This function is delegated by the Client Query service.
/// it will iterate all sellers and make the appropriate client requested
/// query, returns search results to the client
/// </summary>
/// <param name="src">Source of flight</param>
/// <param name="dst">Destination of flight</param>
/// <param name="date">Date of flight</param>
/// <returns>Flights from all sellers which match the input criterias</returns>
public QueryResultFlights QueryFlights(string src, string dst, string date)
{
Console.WriteLine("FlightSearchServer: " + dst + " " + src + " " + date);
try // Sanitize date
{
DateTime.ParseExact(date, "dd/MM/yyyy", CultureInfo.InvariantCulture);
}
catch (Exception)
{
throw new FlightSearchServerBadDate();
}
QueryResultFlights flights = new QueryResultFlights();
foreach (var seller in sellers.Keys)
{
FlightQuery fq = new FlightQuery();
fq.src = src;
fq.dst = dst;
fq.date = DateTime.Parse(date);
using (new OperationContextScope((IContextChannel)sellers[seller]))
{
try
{
Flights sellerFlights =
sellers[seller].GetFlights(fq); // DEAL WITH EXCEPTIONS HERE
foreach (var sellerFlight in sellerFlights)
{
QueryResultFlight f1 = (QueryResultFlight)sellerFlight;
f1.name = seller;
flights.Add(f1);
}
}
catch (FaultException e)
{
Console.WriteLine("Seller {0} failed with {1}, ignoring.", seller, e.Reason.ToString());
}
catch (Exception e)
{
Console.WriteLine("Seller {0} {1} malfunction: \n{2}", seller, "search", e.Message.ToString());
ITicketSellingQueryService victim;
sellers.TryRemove(seller, out victim);
}
}
}
flights.Sort();
return(flights);
}
