// Equivalent of "hello, world"
public Packet AssessTest()
{
// Assert facts and combine them into a list
TemporalValue v1 = new TemporalValue("Single");
Factoid fact1 = new Factoid("Tstr","USC.Tit26.Sec2.FedTaxFilingStatus","Jim","","",new List<TemporalValue>(){v1});
List<Factoid> facts = new List<Factoid>(){fact1};
// Define goals to be sought, and combine them into a list
Factoid goal1 = new Factoid("Tnum", "IRS.Pub501.StandardDeduction", "Jim", "", "");
// Factoid goal1 = new Factoid("Tnum","USC.Tit26.Sec151.ThresholdAmount","Jim","","");
// Factoid goal2 = new Factoid("Tnum","USC.Tit26.Sec151.ApplicablePercentage","Jim","","");
// Factoid goal3 = new Factoid("Tbool","USC.Tit26.Sec152.IsDependentOf","Kid","Dad",""); // For some reason, this is very slow...
List<Factoid> goals = new List<Factoid>(){goal1};
// Assemble a mock request to the web service
Packet mockPacket = new Packet(goals, facts);
// Assess the request
return Assess(mockPacket);
}
/// <summary>
/// Takes an income packet and instantiates a Hammurabi session.
/// </summary>
public Packet Assess(Packet request)
{
// Start timer
DateTime startTime = DateTime.Now;
// Pre-evaluate each goal to enable look-ahead short circuiting.
// See Hammurabi | Core | Engine.cs, line ~81, for an explanation.
foreach (Factoid g in request.Goals)
{
Facts.Fact gb = new Facts.Fact(g.Relationship, g.Arg1, g.Arg2, g.Arg3);
gb.Value();
}
// Start a fresh session
// Facts.Clear();
Facts.GetUnknowns = true;
Facts.Unknowns.Clear();
bool allDone = true;
request.PercentageComplete = 100;
// Assert facts into a Hammurabi session
foreach(Factoid f in request.AssertedFacts)
{
AssertFact(f);
}
// Iterate through each goal
foreach(Factoid g in request.Goals)
{
Facts.Fact gb = new Facts.Fact(g.Relationship, g.Arg1, g.Arg2, g.Arg3);
// Assign to a variable so it's only evaluated once
Tvar gbVal = gb.Value();
// Convert Tvar to timeline object
g.Timeline = TvarToTimeline(gbVal);
// All goals resolved?
if (!gbVal.HasBeenDetermined)
{
allDone = false;
}
}
// Stop looking for unknown facts
Facts.GetUnknowns = false;
// Determine the next fact and the percent complete
if (!allDone)
{
// Factoid neededFact = new Factoid("Tnum","USC.Tit26.Sec151.ThresholdAmount","Jim","","");
// Facts.Fact f = new Facts.Fact("USC.Tit26.Sec151.ThresholdAmount", null, null, null);
// Factoid neededFact = new Factoid(f);
Factoid neededFact = new Factoid(Facts.Unknowns[0]);
request.NeededFacts = new List<Factoid>(){neededFact};
request.PercentageComplete = Interactive.Engine.ProgressPercentage(Facts.Count(), Facts.Unknowns.Count);
}
// Add elapsed time to response object
request.ResponseTimeInMs = Convert.ToInt32((DateTime.Now - startTime).TotalMilliseconds);
return request;
}