Package org.forgerock.monitoring.dropwizard

Class DropwizardMeterRegistry

java.lang.Object

org.forgerock.monitoring.dropwizard.AbstractMeterRegistry

org.forgerock.monitoring.dropwizard.DropwizardMeterRegistry

All Implemented Interfaces:

MeterRegistry

public class DropwizardMeterRegistry
extends AbstractMeterRegistry

Implementation of a MeterRegistry supporting tags using dropwizard metric types.

Nested Class Summary

Nested classes/interfaces inherited from class org.forgerock.monitoring.dropwizard.AbstractMeterRegistry

AbstractMeterRegistry.ConfigImpl

Nested classes/interfaces inherited from interface org.forgerock.monitoring.api.instrument.MeterRegistry

MeterRegistry.Config, MeterRegistry.More

Constructor Summary

Constructors

Constructor	Description
DropwizardMeterRegistry(Clock clock)	Constructor for this class.
DropwizardMeterRegistry(Clock clock, Supplier<com.codahale.metrics.Reservoir> newReservoirSupplier)	Constructor for this class.

Method Summary

Modifier and Type	Method	Description
protected HistogramConfig	defaultHistogramConfig()	Every custom registry implementation should define a default histogram expiry.
protected TimeUnit	getBaseTimeUnit()	The registry's base TimeUnit.
protected Counter	newCounter(Meter.Id id)	Build a new counter to be added to the registry.
protected DistributionSummary	newDistributionSummary(Meter.Id id, HistogramConfig histogramConfig)	Build a new distribution summary to be added to the registry.
protected <T> Gauge	newGauge(Meter.Id id, T obj, ToDoubleFunction<T> valueFunction)	Build a new gauge to be added to the registry.
protected Meter	newMeter(Meter.Id id, Meter.Type type, Iterable<Measurement> measurements)	Build a new custom meter to be added to the registry.
protected Timer	newTimer(Meter.Id id, HistogramConfig histogramConfig, PauseDetector pauseDetector)	Build a new timer to be added to the registry.

Methods inherited from class org.forgerock.monitoring.dropwizard.AbstractMeterRegistry

config, counter, deregisterMatching, gauge, getMeters, more, newTimeGauge, register, summary, timer

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.forgerock.monitoring.api.instrument.MeterRegistry

find, forEachMeter, get

Constructor Details

DropwizardMeterRegistry

public DropwizardMeterRegistry(Clock clock)

Constructor for this class.

Parameters:

clock - the clock

DropwizardMeterRegistry

public DropwizardMeterRegistry(Clock clock,
 Supplier<com.codahale.metrics.Reservoir> newReservoirSupplier)

Constructor for this class.

Parameters:

clock - the clock

newReservoirSupplier - supplies a new reservoir

Method Details

newGauge

protected <T> Gauge newGauge(Meter.Id id,
 T obj,
 ToDoubleFunction<T> valueFunction)

Description copied from class: AbstractMeterRegistry

Build a new gauge to be added to the registry. This is guaranteed to only be called if the gauge doesn't already exist.

Specified by:

newGauge in class AbstractMeterRegistry

Type Parameters:

T - The type of the state object from which the gauge value is extracted.

Parameters:

id - The id that uniquely identifies the gauge.

obj - State object used to compute a value.

valueFunction - Function that is applied on the value for the number.

Returns:

A new gauge.

newCounter

protected Counter newCounter(Meter.Id id)

Description copied from class: AbstractMeterRegistry

Build a new counter to be added to the registry. This is guaranteed to only be called if the counter doesn't already exist.

Specified by:

newCounter in class AbstractMeterRegistry

Parameters:

id - The id that uniquely identifies the counter.

Returns:

A new counter.

newTimer

protected Timer newTimer(Meter.Id id,
 HistogramConfig histogramConfig,
 PauseDetector pauseDetector)

Description copied from class: AbstractMeterRegistry

Build a new timer to be added to the registry. This is guaranteed to only be called if the timer doesn't already exist.

Specified by:

newTimer in class AbstractMeterRegistry

Parameters:

id - The id that uniquely identifies the timer.

histogramConfig - the configuration for the histogram.

pauseDetector - the pause detector.

Returns:

A new timer.

newDistributionSummary

protected DistributionSummary newDistributionSummary(Meter.Id id,
 HistogramConfig histogramConfig)

Description copied from class: AbstractMeterRegistry

Build a new distribution summary to be added to the registry. This is guaranteed to only be called if the distribution summary doesn't already exist.

Specified by:

newDistributionSummary in class AbstractMeterRegistry

Parameters:

id - The id that uniquely identifies the distribution summary.

histogramConfig - the configuration for the histogram.

Returns:

A new distribution summary.

newMeter

protected Meter newMeter(Meter.Id id,
 Meter.Type type,
 Iterable<Measurement> measurements)

Description copied from class: AbstractMeterRegistry

Build a new custom meter to be added to the registry. This is guaranteed to only be called if the custom meter doesn't already exist.

Specified by:

newMeter in class AbstractMeterRegistry

Parameters:

id - The id that uniquely identifies the custom meter.

type - The type of meter.

measurements - the measurements.

Returns:

A new custom meter.

getBaseTimeUnit

protected TimeUnit getBaseTimeUnit()

Description copied from class: AbstractMeterRegistry

The registry's base TimeUnit.

Specified by:

getBaseTimeUnit in class AbstractMeterRegistry

Returns:

the non-null registry's base TimeUnit.

defaultHistogramConfig

protected HistogramConfig defaultHistogramConfig()

Description copied from class: AbstractMeterRegistry

Every custom registry implementation should define a default histogram expiry.

 histogramConfig.builder().histogramExpiry(defaultStep).build().merge(HistogramConfig.DEFAULT);
 

Specified by:

defaultHistogramConfig in class AbstractMeterRegistry

Returns:

the configuration for the histogram.