public static ExchangeRateOutputModel GetExchangeRateFoDateSetStatistics(string commaSeparatedDates, string baseCurrency, string targetCurrency)
{
List <DateTime?> dateSetList = commaSeparatedDates.GetDateSetArray();
List <ExchangeRateDateModel> exchangeRateDateModelList = new List <ExchangeRateDateModel>();
Parallel.For(0, dateSetList.Count, new ParallelOptions {
MaxDegreeOfParallelism = 50
}, (i, state) =>
{
int retryCounter = 0;
retry:
try
{
ExchangeRateRatePerDateServiceResponseModel exchangeRateHistory = ExchangeRateService.GetExchangeRateForSelectedDate(dateSetList[i].Value.ToString("yyyy-MM-dd"), baseCurrency,
targetCurrency).Result;
exchangeRateDateModelList.Add(new ExchangeRateDateModel
{
Date = dateSetList[i].Value.ToString("yyyy-MM-dd"),
Rate = exchangeRateHistory.rates.Values.FirstOrDefault()
});
}
catch (Exception exService)
{
retryCounter++;
if (retryCounter <= 2)
{
goto retry;
}
else
{
state.Stop();
throw exService;
}
}
});
if (exchangeRateDateModelList.Count == dateSetList.Count)
{
exchangeRateDateModelList = exchangeRateDateModelList.OrderBy(x => x.Rate).ToList();
return(GetCurrencyStatisticsDataLogic(exchangeRateDateModelList));
}
else
{
return(null);
}
}