io.micrometer.core.instrument.noop

Class NoopLongTaskTimer

java.lang.Object

io.micrometer.core.instrument.noop.NoopMeter

io.micrometer.core.instrument.noop.NoopLongTaskTimer

All Implemented Interfaces:

LongTaskTimer, Meter

public class NoopLongTaskTimer
extends NoopMeter
implements LongTaskTimer

Nested Class Summary

Nested classes/interfaces inherited from interface io.micrometer.core.instrument.LongTaskTimer

LongTaskTimer.Builder

Nested classes/interfaces inherited from interface io.micrometer.core.instrument.Meter

Meter.Id, Meter.Type

Field Summary

Fields

Modifier and Type	Field and Description
static NoopLongTaskTimer	INSTANCE

Method Summary

Modifier and Type	Method and Description
int	activeTasks() Returns the current number of tasks being executed.
double	duration(long task, java.util.concurrent.TimeUnit unit) Returns the current duration for an active task.
double	duration(java.util.concurrent.TimeUnit unit) Returns the cumulative duration of all current tasks in nanoseconds.
long	start() Start keeping time for a task.
long	stop(long task) Mark a given task as completed.

Methods inherited from class io.micrometer.core.instrument.noop.NoopMeter

getId, measure

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.micrometer.core.instrument.LongTaskTimer

builder, getType, measure, record, record, record, recordCallable

Methods inherited from interface io.micrometer.core.instrument.Meter

getId

Field Detail

INSTANCE

public static NoopLongTaskTimer INSTANCE

Method Detail

start

public long start()

Description copied from interface: LongTaskTimer

Start keeping time for a task.

Specified by:

start in interface LongTaskTimer

Returns:

A task id that can be used to look up how long the task has been running.

stop

public long stop(long task)

Description copied from interface: LongTaskTimer

Mark a given task as completed.

Specified by:

stop in interface LongTaskTimer

Parameters:

task - Id for the task to stop. This should be the value returned from LongTaskTimer.start().

Returns:

Duration for the task in nanoseconds. A -1 value will be returned for an unknown task.

duration

public double duration(long task,
                       java.util.concurrent.TimeUnit unit)

Description copied from interface: LongTaskTimer

Returns the current duration for an active task.

Specified by:

duration in interface LongTaskTimer

Parameters:

task - Id for the task to stop. This should be the value returned from LongTaskTimer.start().

unit - The time unit to scale the returned value to.

Returns:

Duration for the task in nanoseconds. A -1 value will be returned for an unknown task.

duration

public double duration(java.util.concurrent.TimeUnit unit)

Description copied from interface: LongTaskTimer

Returns the cumulative duration of all current tasks in nanoseconds.

Specified by:

duration in interface LongTaskTimer

activeTasks

public int activeTasks()

Description copied from interface: LongTaskTimer

Returns the current number of tasks being executed.

Specified by:

activeTasks in interface LongTaskTimer