/// <summary>
/// Processes Fulfillment of a Prometheus Service Request
/// </summary>
/// <param name="request"></param>
private void ProcessRequest(IServiceRequest request)
{
Console.WriteLine("\n");
Displaymessage($"Processing new Request {request.Name}", MessageType.GoodNews);
Script script = null;
string code = GetCodeFromRequest(request);
//see if there is any script for this
if (code != null)
{
using (var context = new ServiceFulfillmentEngineContext())
{
script = context.Scripts.FirstOrDefault(x => x.Action == request.Action && x.ApplicableCode == code);
}
}
if (script != null)
{
Console.WriteLine($"Identified as executable on '{code}'");
ExecuteScriptForRequest(script, request);
}
ForwardRequest(request);
FulfillPrometheusRequest(request);
}
/// <summary>
/// Returns the appropriate code for a Request provided one exists.
/// Otherwise return null
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
private string GetCodeFromRequest(IServiceRequest request)
{
using (var context = new ServiceFulfillmentEngineContext())
{
IEnumerable <Script> highPriorityScripts = null;
IEnumerable <Script> lowPriorityScripts = null;
try
{
//get scripts
highPriorityScripts = from s in context.Scripts where s.Priority == Priority.High select s;
lowPriorityScripts = from s in context.Scripts where s.Priority == Priority.Low select s;
}
catch (Exception) { /* database empty or other db problem */ }
string code = null;
//try high priority codes available first
if (highPriorityScripts != null)
{
code = (from r in request.ServiceRequestOptions
where
r.Code ==
(from s in highPriorityScripts where s.ApplicableCode == r.Code select s.ApplicableCode).FirstOrDefault()
select r.Code).FirstOrDefault();
}
//if not try for a lower priority codes
if (code == null && lowPriorityScripts != null)
{
code = (from r in request.ServiceRequestOptions
where
r.Code == (from s in lowPriorityScripts where s.ApplicableCode == r.Code select s.ApplicableCode).FirstOrDefault()
select r.Code).FirstOrDefault();
}
return(code);
}
}
