org.apache.hadoop.fs.azurebfs.services

Interface AbfsCounters

All Superinterfaces:

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

All Known Implementing Classes:

AbfsCountersImpl

@InterfaceAudience.Private
 @InterfaceStability.Unstable
public interface AbfsCounters
extends org.apache.hadoop.fs.statistics.IOStatisticsSource, org.apache.hadoop.fs.statistics.DurationTrackerFactory

An interface for Abfs counters.

Method Summary

Modifier and Type	Method and Description
String	formString(String prefix, String separator, String suffix, boolean all) Form a String of the all the statistics and present in an organized manner.
void	incrementCounter(AbfsStatistic statistic, long value) Increment a AbfsStatistic by a long value.
Map<String,Long>	toMap() Convert all the statistics into a key-value pair map to be used for testing.
org.apache.hadoop.fs.statistics.DurationTracker	trackDuration(String key) Start a DurationTracker for a request.

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

getIOStatistics

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

trackDuration

Method Detail

incrementCounter

void incrementCounter(AbfsStatistic statistic,
                      long value)

Increment a AbfsStatistic by a long value.

Parameters:

statistic - AbfsStatistic to be incremented.

value - the value to increment the statistic by.

formString

String formString(String prefix,
                  String separator,
                  String suffix,
                  boolean all)

Form a String of the all the statistics and present in an organized manner.

Parameters:

prefix - the prefix to be set.

separator - the separator between the statistic name and value.

suffix - the suffix to be used.

all - enable all the statistics to be displayed or not.

Returns:

String of all the statistics and their values.

toMap

Map<String,Long> toMap()

Convert all the statistics into a key-value pair map to be used for testing.

Returns:

map with statistic name as key and statistic value as the map value.

trackDuration

org.apache.hadoop.fs.statistics.DurationTracker trackDuration(String key)

Start a DurationTracker for a request.

Specified by:

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

Parameters:

key - Name of the DurationTracker statistic.

Returns:

an instance of DurationTracker.