public Double GetCurrencyRate(String fromCurrency, String toCurrency, Double amount)
{
Double value = default(Double);
WebClient web = new WebClient();
CommonValidation validation = new CommonValidation();
try
{
if (validation.IsCurrencyCodeValid(providerName, fromCurrency) && validation.IsCurrencyCodeValid(providerName, toCurrency))
{
const string urlPattern = "http://finance.yahoo.com/d/quotes.csv?s={0}{1}=X&f=l1";
string url = String.Format(urlPattern, fromCurrency, toCurrency);
// Get response as string
string response = new WebClient().DownloadString(url);
// Convert string to number
decimal exchangeRate = decimal.Parse(response, System.Globalization.CultureInfo.InvariantCulture);
value = Convert.ToDouble(exchangeRate) * amount;
}
}
catch (Exception ex)
{
var resp = new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent(ex.Message),
ReasonPhrase = ex.Message
};
throw new HttpResponseException(resp);
}
return(value);
}
public ICurrencyConverter GetServiceProvider(string serviceProviderName)
{
ICurrencyConverter serviceProvider = null;
try
{
ServiceProviderEnum provider = EnumUtility.ParseEnum <ServiceProviderEnum>(serviceProviderName.ToUpper());
//If Enumeration parsing is not completed then throw the exception
// check the currency provider is active is
CommonValidation validation = new CommonValidation();
// if service provider is active then create the object
if (validation.IsServiceProviderActive(serviceProviderName))
{
switch (provider)
{
case ServiceProviderEnum.GOOGLE:
serviceProvider = new GoogleServiceProvider();
break;
case ServiceProviderEnum.OANDA:
serviceProvider = new OandaServiceProvider();
break;
case ServiceProviderEnum.XE:
serviceProvider = new XEServiceProvider();
break;
case ServiceProviderEnum.YAHOO:
serviceProvider = new YahooServiceProvider();
break;
}
}
}
catch (Exception ex)
{
var resp = new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent(serviceProviderName + "provider Not Found"),
ReasonPhrase = serviceProviderName + " Not Found"
};
throw new HttpResponseException(resp);
}
return(serviceProvider);
}
