public static T GetAttribute <T>(this ICase targetCase, AttributeSchema attribute)
{
if (targetCase == null)
{
throw new ArgumentNullException(nameof(targetCase));
}
T value = default;
var getter = targetCase.GetAttributeGetter <T>(attribute);
getter(ref value);
return(value);
}
public static T GetAttribute <T>(this ICase targetCase, AttributeSchema attribute)
{
if (targetCase == null)
{
throw new ArgumentNullException(nameof(targetCase));
}
if (attribute.Type != typeof(T))
{
throw new ArgumentOutOfRangeException($"Attribute {attribute.Name} type is {attribute.Type}.");
}
T value = default;
var getter = targetCase.GetAttributeGetter <T>(attribute);
getter(ref value);
return(value);
}
internal override Delegate[] GetTransformingGetters(ICase targetCase)
{
if (targetCase == null)
{
throw new ArgumentNullException(nameof(targetCase));
}
var getters = new AttributeGetter <double> [AttributeBinding.Count];
foreach (var binding in AttributeBinding)
{
var min = attributeMin[binding.Binding];
var max = attributeMax[binding.Binding];
var attributeGetter = targetCase.GetAttributeGetter <double>(targetCase.Schema[binding.Attribute]);
getters[binding.Binding] = (ref double value) =>
{
attributeGetter(ref value);
Normalize(ref value, min, max);
};
}
return(getters);
}