org.hawkular.apm.client.api.sampler

Class PercentageSampler

java.lang.Object

org.hawkular.apm.client.api.sampler.PercentageSampler

All Implemented Interfaces:

Sampler

public class PercentageSampler
extends Object
implements Sampler

This sampler reports given percentage of created trace instances. Sample traces are chosen uniformly. It does not check any attributes on given trace object, therefore sampling decision is not idempotent.

Author:

Pavol Loffay

Field Summary

Fields inherited from interface org.hawkular.apm.client.api.sampler.Sampler

ALWAYS_SAMPLE, NEVER_SAMPLE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PercentageSampler(int percentage)

Method Summary

Modifier and Type	Method and Description
boolean	isSampled(Trace trace)
static Sampler	withPercentage(int percentage)

Methods inherited from class java.lang.Object

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

Constructor Detail

PercentageSampler

protected PercentageSampler(int percentage)

Method Detail

withPercentage

public static Sampler withPercentage(int percentage)

Parameters:

percentage - How many percent of created traces should be recorded. 1 = 1%...

isSampled

public boolean isSampled(Trace trace)

Specified by:

isSampled in interface Sampler