Package io.prometheus.client.exemplars

Class ExemplarConfig

java.lang.Object

io.prometheus.client.exemplars.ExemplarConfig

public class ExemplarConfig
extends java.lang.Object

Static configuration for Exemplar behavior.

Field Summary

Fields

Modifier and Type	Field	Description
private static CounterExemplarSampler	counterExemplarSampler
private static boolean	enabled
private static HistogramExemplarSampler	histogramExemplarSampler

Constructor Summary

Constructors

Constructor	Description
ExemplarConfig()

Method Summary

Modifier and Type	Method	Description
static void	disableExemplars()	Prevent metrics from loading exemplars from an ExemplarSampler by default.
static void	enableExemplars()	Allow metrics to load exemplars from an ExemplarSampler by default.
static CounterExemplarSampler	getCounterExemplarSampler()
static HistogramExemplarSampler	getHistogramExemplarSampler()
static boolean	isExemplarsEnabled()
static void	setCounterExemplarSampler(CounterExemplarSampler counterExemplarSampler)	Set the default exemplar sampler for Counters.
static void	setHistogramExemplarSampler(HistogramExemplarSampler histogramExemplarSampler)	Set the default exemplar sampler for Histograms.

Methods inherited from class java.lang.Object

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

Field Detail

enabled

private static volatile boolean enabled

histogramExemplarSampler

private static volatile HistogramExemplarSampler histogramExemplarSampler

counterExemplarSampler

private static volatile CounterExemplarSampler counterExemplarSampler

Constructor Detail

ExemplarConfig

public ExemplarConfig()

Method Detail

setCounterExemplarSampler

public static void setCounterExemplarSampler(CounterExemplarSampler counterExemplarSampler)

Set the default exemplar sampler for Counters.

setHistogramExemplarSampler

public static void setHistogramExemplarSampler(HistogramExemplarSampler histogramExemplarSampler)

Set the default exemplar sampler for Histograms.

disableExemplars

public static void disableExemplars()

Prevent metrics from loading exemplars from an ExemplarSampler by default.

You can still enable individual metrics to load exemplars from an ExemplarSampler by calling the metric builder's withExemplars() method, and you can still provide single exemplars explicitly for individual observations with the ...withExemplar() methods.

enableExemplars

public static void enableExemplars()

Allow metrics to load exemplars from an ExemplarSampler by default.

You can still disallow individual metrics to load exemplars from an ExemplarSampler by calling the metric builder's withoutExemplars() method.

Exemplars are enabled by default. This method is here so that you can temporarily disableExemplars() and then enableExemplars() again.

getCounterExemplarSampler

public static CounterExemplarSampler getCounterExemplarSampler()

Returns:

the CounterExemplarSampler that is used by default in Counter metrics.

getHistogramExemplarSampler

public static HistogramExemplarSampler getHistogramExemplarSampler()

Returns:

the HistogramExemplarSampler that is used by default in Histogram metrics.

isExemplarsEnabled

public static boolean isExemplarsEnabled()

Returns:

true by default, false if disableExemplars() was called.