org.apache.hadoop.fs.s3a.statistics.impl

Class AbstractS3AStatisticsSource

java.lang.Object

org.apache.hadoop.fs.s3a.statistics.impl.AbstractS3AStatisticsSource

All Implemented Interfaces:

org.apache.hadoop.fs.statistics.DurationTrackerFactory, org.apache.hadoop.fs.statistics.IOStatisticsSource

Direct Known Subclasses:

S3AMultipartUploaderStatisticsImpl

public abstract class AbstractS3AStatisticsSource
extends Object
implements org.apache.hadoop.fs.statistics.IOStatisticsSource, org.apache.hadoop.fs.statistics.DurationTrackerFactory

Base class for implementing IOStatistics sources in the S3 module.

A lot of the methods are very terse, because S3AInstrumentation has verbose methods of similar names; the short ones always refer to the inner class and not any superclass method.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractS3AStatisticsSource()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.fs.statistics.impl.IOStatisticsStore	getIOStatistics()
long	incCounter(String name) Increment a named counter by 1.
long	incCounter(String name, long value) DefaultS3ClientFactoryDefaultS3ClientFactory Increment a named counter by 1.
long	incGauge(String name)
long	incGauge(String name, long v)
Long	lookupCounterValue(String name)
Long	lookupGaugeValue(String name)
protected void	setIOStatistics(org.apache.hadoop.fs.statistics.impl.IOStatisticsStore statistics) Setter.
String	toString()
org.apache.hadoop.fs.statistics.DurationTracker	trackDuration(String key, long count)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.fs.statistics.DurationTrackerFactory

trackDuration

Constructor Detail

AbstractS3AStatisticsSource

protected AbstractS3AStatisticsSource()

Method Detail

getIOStatistics

public org.apache.hadoop.fs.statistics.impl.IOStatisticsStore getIOStatistics()

Specified by:

getIOStatistics in interface org.apache.hadoop.fs.statistics.IOStatisticsSource

setIOStatistics

protected void setIOStatistics(org.apache.hadoop.fs.statistics.impl.IOStatisticsStore statistics)

Setter. this must be called in the subclass constructor with whatever

Parameters:

statistics - statistics to set

incCounter

public long incCounter(String name)

Increment a named counter by 1.

Parameters:

name - counter name

Returns:

the updated value or, if the counter is unknown: 0

incCounter

public long incCounter(String name,
                       long value)

DefaultS3ClientFactoryDefaultS3ClientFactory Increment a named counter by 1.

Parameters:

name - counter name

value - value to increment by

Returns:

the updated value or, if the counter is unknown: 0

lookupCounterValue

public Long lookupCounterValue(String name)

lookupGaugeValue

public Long lookupGaugeValue(String name)

incGauge

public long incGauge(String name,
                     long v)

incGauge

public long incGauge(String name)

toString

public String toString()

Overrides:

toString in class Object

trackDuration

public org.apache.hadoop.fs.statistics.DurationTracker trackDuration(String key,
                                                                     long count)

Specified by:

trackDuration in interface org.apache.hadoop.fs.statistics.DurationTrackerFactory