private static bool FindDependValue(ref GuidelineCalculationRequestViewModel data,
IEnumerable <GuidelineCalculationRequestViewModel> dataset,
string dependAnalyteName, Func <double, GuidelineCalculationRequestViewModel, GuidelineCalculationRequestViewModel> callback)
{
if (dependAnalyteName == Constants.MathE)
{
data = callback(Math.E, data);
return(true);
}
var pointToMatch = data;
if (dependAnalyteName == Constants.PH_AnalyteName)
{
return(pointToMatch.PH.HasValue);
}
if (dependAnalyteName == Constants.Hardness_AnalyteName)
{
return(pointToMatch.Hardness.HasValue);
}
if (dependAnalyteName == Constants.Chloride_AnalyteName)
{
return(pointToMatch.Chloride.HasValue);
}
//var depend = dataset.FirstOrDefault(x => x.DateTime.Date == pointToMatch.DateTime.Date &&
// x.Site == pointToMatch.Site &&
// String.Compare(x.Analyte, dependAnalyteName, true) == 0);
//if (depend == null || depend.Value == null)
//{
// return false;
//}
//data = callback(depend.Value.Value, data);
return(true);
}
public AnalyteGuidelineValue CalculateGuidelineValue(
GuidelineCalculationRequestViewModel data,
AnalyteGuideline guideline)
{
if (String.IsNullOrEmpty(guideline.GuidelineValue))
{
throw new ArgumentNullException("System fail to calculate guideline value for " + guideline.AnalyteName);
}
if (guideline.ValueType == Constants.DoubleValueType || guideline.ValueType == Constants.RangeValueType)
{
return(this.CalculateStaticGuidelineValue(guideline));
}
else if (guideline.ValueType == Constants.EquationValueType)
{
double?parsedValue = EvaluateEquation(guideline.GuidelineValue, data.ToEquationParameters());
return(new SimpleGuidelineValue(guideline.Guideline.Name, guideline.AnalyteName, guideline.ValueType, guideline.Unit, parsedValue));
}
else if (guideline.ValueType == Constants.AmmoniaLookupTableValueType)
{
var ammoniaGuidelineCalculator = new AmmoniaGuidelineValueCalculator();
double?parsedValue = ammoniaGuidelineCalculator.CalculateGuidelineValue(guideline.GuidelineValue, data.Value.Value, data.ToEquationParameters());
return(new SimpleGuidelineValue(guideline.Guideline.Name, guideline.AnalyteName, guideline.ValueType, guideline.Unit, parsedValue));
}
else
{
throw new ArgumentException(guideline.ValueType + " is not a supported value type for standard value calculator.");
}
}
public static bool Decide(
ref GuidelineCalculationRequestViewModel data,
IEnumerable <GuidelineCalculationRequestViewModel> dataset,
DependentDecision decision,
AnalyteGuideline guideline)
{
if (decision == DependentDecision.ExistingValue)
{
return(true);
}
if (guideline.ValueType == Constants.EquationValueType)
{
foreach (var analyte in ExtractDependAnalyteNames(guideline.GuidelineValue))
{
var result = FindDependValue(
ref data, dataset,
analyte,
dic[analyte]
);
if (!result)
{
return(false);
}
}
return(true);
}
return(true);
}