io.servicetalk.opentracing.inmemory

Class SamplingStrategies

java.lang.Object

io.servicetalk.opentracing.inmemory.SamplingStrategies

public final class SamplingStrategies
extends java.lang.Object

Utility methods for sampling strategies.

Method Summary

Modifier and Type	Method and Description
static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean>	sampleRespectRequestOrEveryN(int sampleCountHint) Filter that samples as requested, but if there is no request will sample approximately sampleCountHint times.
static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean>	sampleUnlessFalse() Sample unless explicitly requested to not sample.
static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean>	sampleWhenRequestedOrEveryN(int sampleCountHint) Filter that samples when requested, or otherwise treats no request and false as the same and will filter approximately sampleCountHint times.

Methods inherited from class java.lang.Object

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

Method Detail

sampleUnlessFalse

public static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean> sampleUnlessFalse()

Sample unless explicitly requested to not sample.

Returns:

A filter which samples unless explicitly requested to not sample.

sampleRespectRequestOrEveryN

public static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean> sampleRespectRequestOrEveryN(int sampleCountHint)

Filter that samples as requested, but if there is no request will sample approximately sampleCountHint times.

Parameters:

sampleCountHint - Provides a hint at how many times we sample when sampling is not specified.

Returns:

A filter that samples as requested, but if there is no request will sample approximately sampleCountHint times.

sampleWhenRequestedOrEveryN

public static java.util.function.BiFunction<java.lang.String,java.lang.Boolean,java.lang.Boolean> sampleWhenRequestedOrEveryN(int sampleCountHint)

Filter that samples when requested, or otherwise treats no request and false as the same and will filter approximately sampleCountHint times.

Parameters:

sampleCountHint - Provides a hint at how many times we sample when sampling is false or null.

Returns:

A filter that if requested, don't filter if not requested, but if requested is null a sample will be done roughly every sampleCountHint times.