/// <summary>
/// To fetch new symbols from new resources
/// </summary>
/// <returns>New symbols</returns>
public List <string> FetchNewSymbols()
{
List <string> newSymbols = new List <string>();
CurrencyExchangeEntities currencyExchangeEntities = new CurrencyExchangeEntities();
try
{
List <string> oldSymbols = currencyExchangeEntities.Currencies.Select(x => x.Code).ToList();
//Fetching Quote resource data
var dataSources = currencyExchangeEntities.DataSources.Where(x => x.IsNew == true && x.DataElementName == _dataElementName);
foreach (var dataSource in dataSources)
{
//Fetching data from resource
QuoteSource currencyQuotes = ExchangeRateProcessor.GetDataFromSource <QuoteSource>(dataSource.Url);
if (currencyQuotes.Quotes == null)
{
Program.logger.Error("Unable to fetch data from resource Url.");
return(newSymbols);
}
else
{
//Processing and taking symbols alone
List <string> CurrencySymbols = currencyQuotes.Quotes.Select(x => x.Key.Replace("USD", "").Trim().ToUpper()).ToList();
newSymbols.AddRange(CurrencySymbols);
}
}
Program.logger.Info("QuoteSource: New symbols fetched succesfully!");
}
catch (Exception ex)
{
Program.logger.Error("QuoteSource: Error while fetching new symbols.");
Program.logger.Error(ex.Message);
}
return(newSymbols);
}
/// <summary>
/// To Fetch Today Exchange Rates
/// </summary>
/// <returns>Today Exchange Rates</returns>
public List <ExchangeRate> FetchTodayExchangeRates()
{
CurrencyExchangeEntities currencyExchangeEntities = new CurrencyExchangeEntities();
List <ExchangeRate> todayExchangeRates = new List <ExchangeRate>();
try
{
//Fetching Quote resource data
var dataSources = currencyExchangeEntities.DataSources.Where(x => x.DataElementName.Trim().ToUpper() == _dataElementName);
foreach (var datasource in dataSources)
{
//Fetching data from resource
RateSource currencyRates = ExchangeRateProcessor.GetDataFromSource <RateSource>(datasource.Url);
if (currencyRates.Rates == null)
{
Program.logger.Error("Unable fetch data from resource Url.");
return(todayExchangeRates);
}
else
{
//Processing and taking rates
foreach (var rate in currencyRates.Rates)
{
ExchangeRate exchangeRate = new ExchangeRate();
exchangeRate.DataSourceId = datasource.Id;
//Fetching corresponding symbol code from DB
var cid = currencyExchangeEntities.Currencies.Where(x => x.Code == rate.Key.Trim().ToUpper()).FirstOrDefault();
exchangeRate.CurrencyId = cid.Id;
exchangeRate.Rate = rate.Value;
exchangeRate.Date = DateTime.Today;
todayExchangeRates.Add(exchangeRate);
}
}
}
Program.logger.Info("RateSource: Today exchange rates fetched successfully!");
}
catch (Exception ex)
{
Program.logger.Error("RateSource: Error while fetch today exchange rates.");
Program.logger.Error(ex.Message);
}
return(todayExchangeRates);
}