/// <summary>Initializes a new instance of the <see cref="MetricInfoAttribute"/> class.</summary>
/// <param name="category">The category of the metric.</param>
/// <param name="defaultMinValue">Min value to be used by default.</param>
public MetricInfoAttribute([NotNull] string category, DefaultMinMetricValue defaultMinValue)
{
Code.NotNullNorEmpty(category, nameof(category));
Category = category;
DefaultMinValue = defaultMinValue;
MetricColumns = MetricValueColumns.Default;
}
/// <summary>Determines if the minimum metric value should be stored.</summary>
/// <param name="metricRange">The metric range.</param>
/// <param name="metricUnit">The metric unit.</param>
/// <param name="defaultMinValue">>Min value to be used by default.</param>
/// <returns><c>true</c>, if the minimum metric value should be stored.</returns>
public static bool ShouldStoreMinMetricValue(
this MetricRange metricRange, MetricUnit metricUnit,
DefaultMinMetricValue defaultMinValue)
{
switch (defaultMinValue)
{
case DefaultMinMetricValue.Zero:
return(!metricRange.Min.Equals(0));
case DefaultMinMetricValue.NegativeInfinity:
return(!double.IsInfinity(metricRange.Min));
case DefaultMinMetricValue.SameAsMax:
return(double.IsInfinity(metricRange.Min) || !metricRange.MinMaxAreSame(metricUnit));
default:
throw CodeExceptions.UnexpectedArgumentValue(nameof(defaultMinValue), defaultMinValue);
}
}
/// <summary>Returns minimum metric value.</summary>
/// <param name="metricMaxValue">The maximum metric value.</param>
/// <param name="defaultMinValue">>Min value to be used by default.</param>
/// <returns>Minimum metric value.</returns>
private static double GetMinMetricValue(this double metricMaxValue, DefaultMinMetricValue defaultMinValue)
{
if (metricMaxValue.Equals(0))
{
return(0);
}
switch (defaultMinValue)
{
case DefaultMinMetricValue.Zero:
return(0);
case DefaultMinMetricValue.NegativeInfinity:
return(double.NegativeInfinity);
case DefaultMinMetricValue.SameAsMax:
return(double.IsInfinity(metricMaxValue) ? double.NegativeInfinity : metricMaxValue);
default:
throw CodeExceptions.UnexpectedArgumentValue(nameof(defaultMinValue), defaultMinValue);
}
}
