public SampleMetrics(IMetrics metrics)
{
_metrics = metrics;
_concurrentRequestsCounter = _metrics.Provider.Counter.Instance(SampleMetricsRegistry.Counters.ConcurrentRequestsCounter);
_histogramOfData = _metrics.Provider.Histogram.Instance(SampleMetricsRegistry.Histograms.ResultsExample);
_meter = _metrics.Provider.Meter.Instance(SampleMetricsRegistry.Meters.Requests);
_setCounter = _metrics.Provider.Counter.Instance(SampleMetricsRegistry.Counters.SetCounter);
_setMeter = _metrics.Provider.Meter.Instance(SampleMetricsRegistry.Meters.SetMeter);
_timer = _metrics.Provider.Timer.Instance(SampleMetricsRegistry.Timers.Requests);
_totalRequestsCounter = _metrics.Provider.Counter.Instance(SampleMetricsRegistry.Counters.Requests);
// define a simple gauge that will provide the instant value of someValue when requested
_metrics.Measure.Gauge.SetValue(SampleMetricsRegistry.Gauges.DataValue, () => _someValue);
_metrics.Measure.Gauge.SetValue(
SampleMetricsRegistry.Gauges.CustomRatioGauge,
() => _totalRequestsCounter.GetValueOrDefault().Count / _meter.GetValueOrDefault().FiveMinuteRate);
_metrics.Measure.Gauge.SetValue(SampleMetricsRegistry.Gauges.Ratio, () => new HitRatioGauge(_meter, _timer, m => m.OneMinuteRate));
}
/// <summary>
/// Initializes a new instance of the <see cref="HitPercentageGauge" /> class.
/// </summary>
/// <param name="hitMeter">The numerator meter to use.</param>
/// <param name="totalMeter">The denominator meter to use.</param>
/// <param name="meterRateFunc">
/// The function to extract a value from the MeterValue. Will be applied to both the numerator
/// and denominator meters.
/// </param>
/// <remarks>
/// Creates a new HitPercentageGauge with externally tracked Meters, and uses the provided meter rate function to
/// extract the value for the percentage.
/// </remarks>
// ReSharper disable MemberCanBePrivate.Global
public HitPercentageGauge(IMeter hitMeter, IMeter totalMeter, Func <MeterValue, double> meterRateFunc)
// ReSharper restore MemberCanBePrivate.Global
: base(() => meterRateFunc(hitMeter.GetValueOrDefault()), () => meterRateFunc(totalMeter.GetValueOrDefault()))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="HitRatioGauge" /> class.
/// </summary>
/// <param name="hitMeter">The numerator meter to use for the ratio.</param>
/// <param name="totalTimer">The denominator timer to use for the ratio.</param>
/// <param name="meterRateFunc">
/// The function to extract a value from the MeterValue. Will be applied to both the numerator
/// and denominator meters.
/// </param>
/// <remarks>
/// Creates a new HitRatioGauge with externally tracked Meter and Timer, and uses the provided meter rate function to
/// extract the value for the ratio.
/// </remarks>
public HitRatioGauge(IMeter hitMeter, ITimer totalTimer, Func <MeterValue, double> meterRateFunc)
: base(() => meterRateFunc(hitMeter.GetValueOrDefault()), () => meterRateFunc(totalTimer.GetValueOrDefault().Rate))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="HitPercentageGauge" /> class.
/// </summary>
/// <param name="hitMeter">The numerator meter to use.</param>
/// <param name="totalMeter">The denominator meter to use.</param>
/// <param name="meterRateFunc">
/// The function to extract a value from the MeterValue. Will be applied to both the numerator
/// and denominator meters.
/// </param>
/// <remarks>
/// Creates a new HitPercentageGauge with externally tracked Meters, and uses the provided meter rate function to
/// extract the value for the percentage.
/// </remarks>
public HitPercentageGauge(IMeter hitMeter, IMeter totalMeter, Func <MeterValue, double> meterRateFunc)
: base(() => meterRateFunc(hitMeter.GetValueOrDefault()), () => meterRateFunc(totalMeter.GetValueOrDefault()))
{
}