public double Evaluate(Array arguments)
{
var obj = TypedModel.Activate();
TypedModel.TypedParameters.ForEach((p, i) => p.SetValue(obj, arguments.GetValue(i)));
return(Eval(obj));
}
/// <summary>
/// Try analyze a type as a Model
/// </summary>
/// <param name="type">Type</param>
/// <returns>a Model instance if success, or null</returns>
public static TypedModel Analyze(Type type)
{
var tAttr = type.GetCustomAttribute <ModelAttribute>();
if (tAttr == null)
{
return(null);
}
var name = tAttr.Name ?? type.Name;
var model = new TypedModel
{
Type = type,
Name = name
};
var members = type.GetMembers();
foreach (var member in members)
{
if (member.GetCustomAttribute <ParameterAttribute>() != null)
{
var p = TypedParameter.Create(model, member);
if (p != null)
{
model._parameters.Add(p);
}
}
if (member.GetCustomAttribute <ConstraintAttribute>() != null)
{
var c = MemberTypedConstraint.Create(model, member);
if (c != null)
{
model._constraints.Add(c);
}
}
if (member.GetCustomAttribute <ObjectiveAttribute>() != null)
{
var o = MethodTypedObjective.Create(model, member);
if (o != null)
{
model._objectives.Add(o);
}
}
}
model._parameters.Sort((a, b) => string.Compare(a.Name, b.Name, StringComparison.Ordinal));
model._constraints.Sort((a, b) => string.Compare(a.Name, b.Name, StringComparison.Ordinal));
model._objectives.Sort((a, b) => string.Compare(a.Name, b.Name, StringComparison.Ordinal));
return(model);
}
