static void PrintExchangeRate(CurrencyRequestType requestType, string fromCurr, string toCurr, CurrencyExchangeRate rate)
{
if (rate == null)
{
Console.WriteLine("Failed to get rate for {0} to {1}", fromCurr, toCurr);
return;
}
Console.WriteLine(rate);
}
public void Add(CurrencyRequestType requestType, string fromCurr, string toCurr,
Action <CurrencyRequestType, string, string, CurrencyExchangeRate> action)
{
_requests.Enqueue(new CurrencyRequestData(requestType, fromCurr, toCurr, action));
}