private static decimal GetCurrencyConversionRatio(CurrencyInfo originalCurrency, CurrencyInfo targetCurrency)
{
rwlock.AcquireReaderLock(Timeout.Infinite);
try
{
string currencyConversionKey = originalCurrency.ISOCode3 + "To" + targetCurrency.ISOCode3 + "ConversionRate";
if (!_currency_ConversionRateDictionary.ContainsKey(currencyConversionKey))
{
decimal conversionRate;
if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings[currencyConversionKey]) &&
decimal.TryParse(ConfigurationManager.AppSettings[currencyConversionKey], out conversionRate))
{
LockCookie lc = rwlock.UpgradeToWriterLock(Timeout.Infinite);
try
{
if (!_currency_ConversionRateDictionary.ContainsKey(currencyConversionKey))
{
_currency_ConversionRateDictionary.Add(currencyConversionKey, conversionRate);
}
return(_currency_ConversionRateDictionary[currencyConversionKey]);
}
finally
{
rwlock.DowngradeFromWriterLock(ref lc);
}
}
else
{
throw new Exception("Conversion between " + originalCurrency.ISOCode3 + " and " + targetCurrency.ISOCode3
+ " is not currently available");
}
}
else
{
return(_currency_ConversionRateDictionary[currencyConversionKey]);
}
}
finally
{
rwlock.ReleaseReaderLock();
}
}
/// <summary>
/// Converts the provided amount to its equivalent in the provided currency
/// </summary>
/// <param name="originalAmount"></param>
/// <param name="targetCurrency"></param>
/// <param name="roundValue"></param>
/// <returns>MoneyInfo</returns>
public static MoneyInfo ConvertAmount(MoneyInfo originalAmount, CurrencyInfo targetCurrency, bool roundValue)
{
return(ConvertAmount(originalAmount, targetCurrency, DateTime.UtcNow, roundValue, GetCurrencyConversionRatio(originalAmount.Currency, targetCurrency)));
}
/// <summary>
/// Converts the provided amount to its equivalent in the provided currency, and conversion rate
/// </summary>
/// <param name="originalAmount"></param>
/// <param name="targetCurrency"></param>
/// <param name="currencyConversionRatio"></param>
/// <returns>MoneyInfo</returns>
public static MoneyInfo ConvertAmount(MoneyInfo originalAmount, CurrencyInfo targetCurrency, decimal currencyConversionRatio)
{
return(ConvertAmount(originalAmount, targetCurrency, DateTime.UtcNow, true, currencyConversionRatio));
}