Package org.infinispan.extendedstats.percentiles

Class ReservoirSampler

java.lang.Object

org.infinispan.extendedstats.percentiles.ReservoirSampler

public class ReservoirSampler
extends Object

Keeps the sample for percentile calculations.

Please check this for more details

Since:

6.0

Author:

Roberto Palmieri, Diego Didona, Pedro Ruivo

Constructor Summary

Constructors

Constructor	Description
ReservoirSampler()
ReservoirSampler(int numSpots)

Method Summary

Modifier and Type	Method	Description
final double	getKPercentile(int k)
final void	insertSample(double sample)
final void	reset()

Methods inherited from class java.lang.Object

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

Constructor Details

ReservoirSampler

public ReservoirSampler()

ReservoirSampler

public ReservoirSampler(int numSpots)

Method Details

insertSample

public final void insertSample(double sample)

getKPercentile

public final double getKPercentile(int k)
                            throws IllegalArgumentException

Parameters:

k - the percentage of observations. Should be a value between 0 and 100 exclusively.

Returns:

the percentile value for the k% observations.

Throws:

IllegalArgumentException - if k is not between 0 and 100 exclusively.

reset

public final void reset()