/// <inheritdoc cref="StandardScanShareableAnalyzer{S}.FromAggregationResult"/>
public virtual DoubleMetric FromAggregationResult(Row result, int offset)
{
if (result.Values.Length <= offset || result[offset] == null)
{
return(AnalyzersExt.MetricFromEmpty(this, Name, string.Join(',', Columns),
AnalyzersExt.EntityFrom(Columns)));
}
return(ToSuccessMetric(result.GetAs <double>(offset)));
}
/// <inheritdoc cref="ScanShareableAnalyzer{S,M}.ComputeMetricFrom"/>
public override DoubleMetric ComputeMetricFrom(Option <FrequenciesAndNumRows> state)
{
if (!state.HasValue)
{
return(AnalyzersExt.MetricFromEmpty(this, Name, string.Join(',', Columns),
AnalyzersExt.EntityFrom(Columns)));
}
IEnumerable <Column> aggregations = AggregationFunctions(state.Value.NumRows);
Row result = state.Value.Frequencies
.Agg(aggregations.First(),
aggregations.Skip(1).ToArray())
.Collect()
.FirstOrDefault();
return(FromAggregationResult(result, 0));
}
/// <summary>
/// Converts an <see cref="Exception"/> to a <see cref="DoubleMetric"/>.
/// </summary>
/// <param name="exception">The exception to convert into <see cref="DoubleMetric"/>.</param>
/// <returns>The instance of type <see cref="DoubleMetric"/> that represents the exception.</returns>
public override DoubleMetric ToFailureMetric(Exception exception) =>
AnalyzersExt.MetricFromFailure(exception, Name, string.Join(',', Columns),
AnalyzersExt.EntityFrom(Columns));
/// <summary>
/// Converts a value to a <see cref="DoubleMetric"/>.
/// </summary>
/// <param name="value">The value to convert into <see cref="DoubleMetric"/>.</param>
/// <returns>The instance of type <see cref="DoubleMetric"/> that represents the value.</returns>
protected DoubleMetric ToSuccessMetric(double value) =>
AnalyzersExt.MetricFromValue(value, Name, string.Join(',', Columns),
AnalyzersExt.EntityFrom(Columns));