Package com.yahoo.vespa.streamingvisitors.tracing

Class MaxSamplesPerPeriod

java.lang.Object

com.yahoo.vespa.streamingvisitors.tracing.MaxSamplesPerPeriod

All Implemented Interfaces:

SamplingStrategy

public class MaxSamplesPerPeriod
extends java.lang.Object
implements SamplingStrategy

Very basic sampling strategy which allows for sampling N requests within a fixed time window. No attempt is made to distribute the samples evenly within the time period; this is on a first-come, first-serve basis.

Constructor Summary

Constructors

Constructor	Description
MaxSamplesPerPeriod(MonotonicNanoClock nanoClock, long periodLengthInNanos, long maxSamplesPerPeriod)

Method Summary

Modifier and Type	Method	Description
boolean	shouldSample()
static MaxSamplesPerPeriod	withSteadyClock(long periodLengthInNanos, long maxSamplesPerPeriod)

Methods inherited from class java.lang.Object

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

Constructor Detail

MaxSamplesPerPeriod

public MaxSamplesPerPeriod(MonotonicNanoClock nanoClock,
                           long periodLengthInNanos,
                           long maxSamplesPerPeriod)

Method Detail

withSteadyClock

public static MaxSamplesPerPeriod withSteadyClock(long periodLengthInNanos,
                                                  long maxSamplesPerPeriod)

shouldSample

public boolean shouldSample()

Specified by:

shouldSample in interface SamplingStrategy