org.apache.kafka.common.metrics.stats

Class Percentiles

java.lang.Object

org.apache.kafka.common.metrics.stats.SampledStat

org.apache.kafka.common.metrics.stats.Percentiles

All Implemented Interfaces:

CompoundStat, Measurable, MeasurableStat, MetricValueProvider<Double>, Stat

public class Percentiles
extends SampledStat
implements CompoundStat

A compound stat that reports one or more percentiles

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Percentiles.BucketSizing

Nested classes/interfaces inherited from class org.apache.kafka.common.metrics.stats.SampledStat

SampledStat.Sample

Nested classes/interfaces inherited from interface org.apache.kafka.common.metrics.CompoundStat

CompoundStat.NamedMeasurable

Field Summary

Fields inherited from class org.apache.kafka.common.metrics.stats.SampledStat

samples

Constructor Summary

Constructors

Constructor and Description
Percentiles(int sizeInBytes, double min, double max, Percentiles.BucketSizing bucketing, Percentile... percentiles)
Percentiles(int sizeInBytes, double max, Percentiles.BucketSizing bucketing, Percentile... percentiles)

Method Summary

Modifier and Type	Method and Description
double	combine(List<SampledStat.Sample> samples, MetricConfig config, long now)
protected org.apache.kafka.common.metrics.stats.Percentiles.HistogramSample	newSample(long timeMs)
List<CompoundStat.NamedMeasurable>	stats()
protected void	update(SampledStat.Sample sample, MetricConfig config, double value, long timeMs)
double	value(MetricConfig config, long now, double quantile)

Methods inherited from class org.apache.kafka.common.metrics.stats.SampledStat

current, measure, oldest, purgeObsoleteSamples, record, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.kafka.common.metrics.Stat

record

Constructor Detail

Percentiles

public Percentiles(int sizeInBytes,
                   double max,
                   Percentiles.BucketSizing bucketing,
                   Percentile... percentiles)

Percentiles

public Percentiles(int sizeInBytes,
                   double min,
                   double max,
                   Percentiles.BucketSizing bucketing,
                   Percentile... percentiles)

Method Detail

stats

public List<CompoundStat.NamedMeasurable> stats()

Specified by:

stats in interface CompoundStat

value

public double value(MetricConfig config,
                    long now,
                    double quantile)

combine

public double combine(List<SampledStat.Sample> samples,
                      MetricConfig config,
                      long now)

Specified by:

combine in class SampledStat

newSample

protected org.apache.kafka.common.metrics.stats.Percentiles.HistogramSample newSample(long timeMs)

Overrides:

newSample in class SampledStat

update

protected void update(SampledStat.Sample sample,
                      MetricConfig config,
                      double value,
                      long timeMs)

Specified by:

update in class SampledStat