Package org.apache.hadoop.fs.statistics.impl

Class WrappedIOStatistics

java.lang.Object

org.apache.hadoop.fs.statistics.impl.AbstractIOStatisticsImpl

org.apache.hadoop.fs.statistics.impl.WrappedIOStatistics

All Implemented Interfaces:

IOStatistics

public class WrappedIOStatistics
extends AbstractIOStatisticsImpl

Wrap IOStatistics source with another (dynamic) wrapper.

Field Summary

Fields inherited from interface org.apache.hadoop.fs.statistics.IOStatistics

MAX_UNSET_VALUE, MIN_UNSET_VALUE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	WrappedIOStatistics()	Instantiate without setting the statistics.
	WrappedIOStatistics(IOStatistics wrapped)	Instantiate.

Method Summary

Modifier and Type	Method	Description
java.util.Map<java.lang.String,java.lang.Long>	counters()	Map of counters.
java.util.Map<java.lang.String,java.lang.Long>	gauges()	Map of gauges.
protected IOStatistics	getWrapped()	Get at the wrapped inner statistics.
java.util.Map<java.lang.String,java.lang.Long>	maximums()	Map of maximums.
java.util.Map<java.lang.String,MeanStatistic>	meanStatistics()	Map of meanStatistics.
java.util.Map<java.lang.String,java.lang.Long>	minimums()	Map of minimums.
protected void	setWrapped(IOStatistics wrapped)	Set the wrapped statistics.
java.lang.String	toString()	Return the statistics dump of the wrapped statistics.

Methods inherited from class java.lang.Object

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

Constructor Detail

WrappedIOStatistics

public WrappedIOStatistics(IOStatistics wrapped)

Instantiate.

Parameters:

wrapped - nullable wrapped statistics.

WrappedIOStatistics

protected WrappedIOStatistics()

Instantiate without setting the statistics. This is for subclasses which build up the map during their own construction.

Method Detail

counters

public java.util.Map<java.lang.String,java.lang.Long> counters()

Description copied from interface: IOStatistics

Map of counters.

Returns:

the current map of counters.

getWrapped

protected IOStatistics getWrapped()

Get at the wrapped inner statistics.

Returns:

the wrapped value

setWrapped

protected void setWrapped(IOStatistics wrapped)

Set the wrapped statistics. Will fail if the field is already set.

Parameters:

wrapped - new value

gauges

public java.util.Map<java.lang.String,java.lang.Long> gauges()

Description copied from interface: IOStatistics

Map of gauges.

Returns:

the current map of gauges.

minimums

public java.util.Map<java.lang.String,java.lang.Long> minimums()

Description copied from interface: IOStatistics

Map of minimums.

Returns:

the current map of minimums.

maximums

public java.util.Map<java.lang.String,java.lang.Long> maximums()

Description copied from interface: IOStatistics

Map of maximums.

Returns:

the current map of maximums.

meanStatistics

public java.util.Map<java.lang.String,MeanStatistic> meanStatistics()

Description copied from interface: IOStatistics

Map of meanStatistics.

Returns:

the current map of MeanStatistic statistics.

toString

public java.lang.String toString()

Return the statistics dump of the wrapped statistics.

Overrides:

toString in class java.lang.Object

Returns:

the statistics for logging.