private double MemoizeCalculateResult(IterationDefinition iterationDefinition, string formula,
int numberOfSimbolsAfterComma)
{
if (_iterationDefinitionsCache.ContainsKey(formula))
{
IterationDefinition iteration = _iterationDefinitionsCache[formula]
.FirstOrDefault(definition => definition.CheckEquality(iterationDefinition));
if (iteration != null)
{
return(iteration.Result);
}
}
Expression expression = new Expression(formula);
List <Argument> arguments = new List <Argument>();
for (int i = 0; i < iterationDefinition.ArgumentValues.Count; i++)
{
arguments.Add(new Argument(iterationDefinition.ArgumentNames[i],
iterationDefinition.ArgumentValues[i]));
}
expression.addArguments(arguments.ToArray());
double result = expression.calculate();
if (Double.IsNaN(result))
{
throw new ArgumentException();
}
result = Math.Round(result, numberOfSimbolsAfterComma);
iterationDefinition.Result = result;
if (_iterationDefinitionsCache.ContainsKey(formula))
{
_iterationDefinitionsCache[formula].Add(iterationDefinition);
}
else
{
_iterationDefinitionsCache.TryAdd(formula,
new ConcurrentBag <IterationDefinition>()
{
iterationDefinition
});
}
return(result);
}
//public async Task<IFormattedValue> VisitFormulaFormatter(IUshortsFormatter formatter)
//{
// INumericValue formattedValue = _typesContainer.Resolve<INumericValue>();
// IterationDefinition iterationDefinition = new IterationDefinition();
// IFormulaFormatter formulaFormatter = formatter as IFormulaFormatter;
// iterationDefinition.FormulaString = formulaFormatter.FormulaString;
// iterationDefinition.ArgumentNames = new List<string>();
// iterationDefinition.ArgumentValues = new List<double>();
// iterationDefinition.ArgumentNames.Add("x");
// iterationDefinition.ArgumentValues.Add(_ushortsPayload[0]);
// iterationDefinition.NumberOfSimbolsAfterComma = formulaFormatter.NumberOfSimbolsAfterComma;
// if (formulaFormatter.UshortFormattableResources != null)
// {
// // int index = 1;
// // foreach (IUshortFormattable formattableUshortResource in formulaFormatter.UshortFormattableResources)
// // {
// // if (formattableUshortResource is IDeviceValueContaining)
// // {
// // IFormattedValue value = formattableUshortResource.UshortsFormatter
// // .Format((formattableUshortResource as IDeviceValueContaining).DeviceUshortsValue);
// // if (value is INumericValue)
// // {
// // double num = (value as INumericValue).NumValue;
// // iterationDefinition.ArgumentNames.Add("x" + index++);
// // iterationDefinition.ArgumentValues.Add(num);
// // }
// // }
// // }
// }
// formattedValue.NumValue = MemoizeCalculateResult(iterationDefinition, formulaFormatter.FormulaString,
// formulaFormatter.NumberOfSimbolsAfterComma);
// return formattedValue;
//}
public async Task <IFormattedValue> VisitFormulaFormatter(IUshortsFormatter formatter)
{
INumericValue formattedValue = _typesContainer.Resolve <INumericValue>();
IterationDefinition iterationDefinition = new IterationDefinition();
IFormulaFormatter formulaFormatter = formatter as IFormulaFormatter;
iterationDefinition.FormulaString = formulaFormatter.FormulaString;
iterationDefinition.ArgumentNames = new List <string>();
iterationDefinition.ArgumentValues = new List <double>();
iterationDefinition.ArgumentNames.Add("x");
iterationDefinition.ArgumentValues.Add(_ushortsPayload[0]);
iterationDefinition.NumberOfSimbolsAfterComma = formulaFormatter.NumberOfSimbolsAfterComma;
if (formulaFormatter.UshortFormattableResources != null)
{
int index = 1;
foreach (string formattableUshortResource in formulaFormatter.UshortFormattableResources)
{
var resource = _formattingContext.DeviceContext.DeviceSharedResources.SharedResourcesInContainers.FirstOrDefault(
container => container.ResourceName == formattableUshortResource);
var propValue = await StaticContainer.Container.Resolve <IPropertyValueService>()
.GetValueOfProperty(resource.Resource, _formattingContext.DeviceContext, true, _isLocal);
if (propValue.Item is INumericValue numericValue)
{
double num = numericValue.NumValue;
iterationDefinition.ArgumentNames.Add("x" + index++);
iterationDefinition.ArgumentValues.Add(num);
}
}
}
formattedValue.NumValue = MemoizeCalculateResult(iterationDefinition, formulaFormatter.FormulaString,
formulaFormatter.NumberOfSimbolsAfterComma);
return(formattedValue);
}
