public static async Task <string> SendSoapMessage(string url, string method, LoanRequest request)
{
HttpClientHandler handler = new HttpClientHandler();
//Creates a new HttpClientHandler.
handler.UseDefaultCredentials = true;
//true if the default credentials are used; otherwise false. will use authentication credentials from the logged on user on your pc.
using (HttpClient client = new HttpClient(handler))
{
client.BaseAddress = new Uri(url);
var values = new Dictionary <string, string>
{
{ "ssn", request.ssn },
{ "creditScore", request.creditScore.ToString() },
{ "loanAmount", request.loanAmount.ToString() },
{ "loanDuration", request.loanDuration }
};
var content = new FormUrlEncodedContent(values);
var response = await client.PostAsync(method, content).ConfigureAwait(continueOnCapturedContext: false);;
response.EnsureSuccessStatusCode();
var responseString = await response.Content.ReadAsStringAsync();
return(responseString);
}
}
public static string GetXMLFromLoanRequest(LoanRequest request)
{
var serializer = new System.Xml.Serialization.XmlSerializer(typeof(LoanRequest));
string xml = "";
using (var sww = new StringWriter())
{
using (XmlWriter writer = XmlWriter.Create(sww))
{
serializer.Serialize(writer, request);
xml = sww.ToString(); // Your XML
return(xml);
}
}
}
public static string GetJSONFromRequest(LoanRequest request)
{
MemoryStream stream1 = new MemoryStream();
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(LoanRequest));
// Save original string before we work.
string originalDurationString = request.loanDuration;
// As JSON banks use days instead of Date from 1970, we convert it.
string durationString = request.loanDuration.Replace("CET", "").Trim();
DateTime durationDate = Convert.ToDateTime(durationString);
var duration = durationDate - new DateTime(1970, 01, 01);
request.loanDuration = duration.TotalDays.ToString();
ser.WriteObject(stream1, request);
stream1.Position = 0;
StreamReader sr = new StreamReader(stream1);
string jsonRequest = sr.ReadToEnd();
request.loanDuration = originalDurationString;
//jsonRequest = jsonRequest.Replace(":\"", ":").Replace("\",", ",").Replace("\"}", "}");
return(jsonRequest);
}
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);
}
