public static Dictionary <string, LoanResponse> Normalize(Dictionary <string, string> rawResponses)
{
Dictionary <string, LoanResponse> responses = new Dictionary <string, LoanResponse>();
foreach (var response in rawResponses)
{
// Look for XML style closing tag
if (response.Value.Contains("</"))
{ // its XML
var loanResponse = XMLConverter.GetResponseFromXML(response.Value);
responses.Add(response.Key, loanResponse);
}
// Look for JSON style closing tag
else if (response.Value.Contains("}"))
{ // its JSON
var loanResponse = JSONConverter.GetResponseFromJSON(response.Value);
responses.Add(response.Key, loanResponse);
}
}
return(responses);
}
public string RequestLoan(string ssn, bool isInRKI, double loanAmount, int loanDurationInDays)
{
Dictionary <string, string> recievedResponses = new Dictionary <string, string>();
if (ssn.Length != 11 && ssn[6] != '-')
{
return("ssn MUST be in the format XXXXXX-XXXX");
}
DateTime loanDuration = new DateTime(1970, 01, 01);
loanDuration = loanDuration.AddDays(loanDurationInDays);
// Get Creditscore from webservice
var creditBureau = new CreditBureau.CreditScoreService();
int creditScore = creditBureau.creditScore(ssn);
ssn = ssn.Replace("-", "");
// Get Banks from rulebase
var rulebase = new RuleBase.RuleBase();
var recipientList = rulebase.GetBanks(creditScore, isInRKI, loanAmount, loanDuration).ToList();
if (recipientList.Count == 0)
{
return("No suitable banks :(");
}
var request = new LoanRequest(ssn, creditScore, loanAmount, loanDuration);
// Translate and send.
foreach (var bank in recipientList)
{
string queueForBank = ssn + "." + bank.Name;
if (bank.UsesMessaging)
{ // Use AMQP Messaging protocol (RabbitMQ broker)
MessageSender.DeclareQueue(bank.Host, queueForBank);
if (bank.Exchange.Contains("XML"))
{ // XML Translator is used
var encodedMessage = UTF8Encoding.UTF8.GetBytes(XMLConverter.GetXMLFromLoanRequest(request));
MessageSender.SendMessage(bank.Host, bank.Exchange, queueForBank, encodedMessage);
}
else if (bank.Exchange.Contains("JSON"))
{ // JSON Translator is used
string json = JSONConverter.GetJSONFromRequest(request);
var encodedMessage = UTF8Encoding.UTF8.GetBytes(json);
MessageSender.SendMessage(bank.Host, bank.Exchange, queueForBank, encodedMessage);
}
}
else
{ // Use http request to contact soap webservice.
var myResponse = DynamicSoapRequestHandler.SendSoapMessage(bank.Host, "RequestLoan", request).Result;
recievedResponses.Add(bank.Name, myResponse);
}
}
// Recieve messages
foreach (var bank in recipientList)
{
if (bank.UsesMessaging)
{
string queueForBank = ssn + "." + bank.Name;
string response = MessageReciever.Recieve(bank.Host, queueForBank);
recievedResponses.Add(bank.Name, response);
}
}
if (recievedResponses.Count == 0)
{
return("No banks responded. This could be a connection error!");
}
// Normalize
Dictionary <string, LoanResponse> responses = Normalizer.Normalize(recievedResponses); // Uses translators to get LoanResponse objects
//Aggregate to find best rate.
string bestInterestInformation = Aggregator.FindBestInterestRate(responses);
return(bestInterestInformation);
}
