private TimerMetric(TimeUnit durationUnit, TimeUnit rateUnit, MeterMetric meter, HistogramMetric histogram,
bool clear)
{
DurationUnit = durationUnit;
RateUnit = rateUnit;
_meter = meter;
_histogram = histogram;
if (clear)
{
Clear();
}
}
/// <summary>
/// Creates a new meter metric and registers it under the given type and name
/// </summary>
/// <param name="owner">The type that owns the metric</param>
/// <param name="name">The metric name</param>
/// <param name="eventType">The plural name of the type of events the meter is measuring (e.g., <code>"requests"</code>)</param>
/// <param name="rateUnit">The rate unit of the new meter</param>
/// <returns></returns>
public MeterMetric Meter(Type owner, string name, string eventType, TimeUnit rateUnit)
{
var metricName = new MetricName(owner, name);
if (_store.TryGetValue(metricName, out var existingMetric))
{
return((MeterMetric)existingMetric);
}
var metric = MeterMetric.New(metricName, eventType, rateUnit);
var added = _store.GetOrAdd(metricName, metric);
return(added == null ? metric : (MeterMetric)added);
}
public IImmutableDictionary <MetricName, IMetric> GetSample(MetricType typeFilter = MetricType.All)
{
if (typeFilter.HasFlagFast(MetricType.All))
{
return(NoSample);
}
var filtered = new Dictionary <MetricName, IMetric>();
foreach (var entry in _inner)
{
switch (entry.Value)
{
case GaugeMetric _ when typeFilter.HasFlagFast(MetricType.Gauge):
case CounterMetric _ when typeFilter.HasFlagFast(MetricType.Counter):
case MeterMetric _ when typeFilter.HasFlagFast(MetricType.Meter):
case HistogramMetric _ when typeFilter.HasFlagFast(MetricType.Histogram):
case TimerMetric _ when typeFilter.HasFlagFast(MetricType.Timer):
continue;
default:
filtered.Add(entry.Key, entry.Value);
break;
}
}
return(filtered.ToImmutableSortedDictionary(k => k.Key, v =>
{
return v.Value switch
{
GaugeMetric gauge => gauge.Copy(),
CounterMetric counter => counter.Copy(),
MeterMetric meter => meter.Copy(),
HistogramMetric histogram => histogram.Copy(),
TimerMetric timer => timer.Copy(),
_ => throw new ArgumentException()
};
}));
internal TimerMetric(MetricName metricName, TimeUnit durationUnit, TimeUnit rateUnit) : this(durationUnit,
rateUnit,
MeterMetric.New(metricName, "updates", rateUnit), new HistogramMetric(metricName, SampleType.Biased),
true)
{
Name = metricName;
}