Package org.apache.hadoop.yarn.metrics

Class DispatcherEventMetricsNoOps

java.lang.Object

org.apache.hadoop.yarn.metrics.DispatcherEventMetricsNoOps

All Implemented Interfaces:

org.apache.hadoop.metrics2.MetricsSource, DispatcherEventMetrics

public class DispatcherEventMetricsNoOps
extends java.lang.Object
implements DispatcherEventMetrics

Used if metric publication should be disabled

Constructor Summary

Constructors

Constructor	Description
DispatcherEventMetricsNoOps(org.slf4j.Logger log)

Method Summary

Modifier and Type	Method	Description
void	addEvent(java.lang.Object type)	Call if Event added for dispatching
void	getMetrics(org.apache.hadoop.metrics2.MetricsCollector collector, boolean all)
void	init(java.lang.Class<? extends java.lang.Enum> typeClass)	Class of the event type what can be handled by the DispatcherEventMetrics
void	removeEvent(java.lang.Object type)	Call if Event handled
void	updateRate(java.lang.Object type, long millisecond)	Call with how much time was required to handle the event

Methods inherited from class java.lang.Object

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

Constructor Detail

DispatcherEventMetricsNoOps

public DispatcherEventMetricsNoOps(org.slf4j.Logger log)

Method Detail

getMetrics

public void getMetrics(org.apache.hadoop.metrics2.MetricsCollector collector,
                       boolean all)

Specified by:

getMetrics in interface org.apache.hadoop.metrics2.MetricsSource

init

public void init(java.lang.Class<? extends java.lang.Enum> typeClass)

Description copied from interface: DispatcherEventMetrics

Class of the event type what can be handled by the DispatcherEventMetrics

Specified by:

init in interface DispatcherEventMetrics

Parameters:

typeClass - the event type

addEvent

public void addEvent(java.lang.Object type)

Description copied from interface: DispatcherEventMetrics

Call if Event added for dispatching

Specified by:

addEvent in interface DispatcherEventMetrics

Parameters:

type - type of the event

removeEvent

public void removeEvent(java.lang.Object type)

Description copied from interface: DispatcherEventMetrics

Call if Event handled

Specified by:

removeEvent in interface DispatcherEventMetrics

Parameters:

type - type of the event

updateRate

public void updateRate(java.lang.Object type,
                       long millisecond)

Description copied from interface: DispatcherEventMetrics

Call with how much time was required to handle the event

Specified by:

updateRate in interface DispatcherEventMetrics

Parameters:

type - type of the event

millisecond - time interval