Struct SampledStat 

pub struct SampledStat { /* private fields */ }

A SampledStat records a single scalar value measured over one or more samples. Each sample is recorded over a configurable window. The window can be defined by number of events or elapsed time (or both, if both are given the window is complete when either the event count or elapsed time criterion is met).

All the samples are combined to produce the measurement. When a window is complete the oldest sample is cleared and recycled to begin recording the next sample.

Implementations

impl SampledStat

pub fn new(initial_value: f64, kind: Box<dyn SampledStatKind>) -> Self

Create a SampledStat with the given initial value and per-subclass behaviour.

Arguments

• initial_value - the value a sample starts from
• kind - the subclass behaviour: update and combine

Trait Implementations

impl Debug for SampledStat

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for SampledStat

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Java’s SampledStat.toString(), which Avg, Max, Min, WindowedCount and WindowedSum inherit: the samples print as Java’s List.toString() and the doubles as Java’s Double.toString.

impl Measurable for SampledStat

fn measure(&self, config: &MetricConfig, now: i64) -> f64

Measure this quantity and return the result as a double.

fn type_name(&self) -> Option<&'static str>

Returns the provider’s type name, as KafkaMetric’s Display reports it, or None for a provider that is a closure.

impl Stat for SampledStat

fn record(&self, config: &MetricConfig, value: f64, time_ms: i64)

Record the given value.