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

Class DynamicIOStatisticsBuilder

java.lang.Object

org.apache.hadoop.fs.statistics.impl.DynamicIOStatisticsBuilder

public class DynamicIOStatisticsBuilder
extends java.lang.Object

Builder of DynamicIOStatistics. Instantiate through IOStatisticsBinding.dynamicIOStatistics().

Constructor Summary

Constructors

Constructor	Description
DynamicIOStatisticsBuilder()

Method Summary

Modifier and Type	Method	Description
IOStatistics	build()	Build the IOStatistics instance.
DynamicIOStatisticsBuilder	withAtomicIntegerCounter(java.lang.String key, java.util.concurrent.atomic.AtomicInteger source)	Add a counter statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicIntegerGauge(java.lang.String key, java.util.concurrent.atomic.AtomicInteger source)	Add a gauge statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicIntegerMaximum(java.lang.String key, java.util.concurrent.atomic.AtomicInteger source)	Add a maximum statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicIntegerMinimum(java.lang.String key, java.util.concurrent.atomic.AtomicInteger source)	Add a minimum statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicLongCounter(java.lang.String key, java.util.concurrent.atomic.AtomicLong source)	Add a counter statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicLongGauge(java.lang.String key, java.util.concurrent.atomic.AtomicLong source)	Add a gauge statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicLongMaximum(java.lang.String key, java.util.concurrent.atomic.AtomicLong source)	Add a maximum statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withAtomicLongMinimum(java.lang.String key, java.util.concurrent.atomic.AtomicLong source)	Add a minimum statistic to dynamically return the latest value of the source.
DynamicIOStatisticsBuilder	withLongFunctionCounter(java.lang.String key, java.util.function.ToLongFunction<java.lang.String> eval)	Add a new evaluator to the counter statistics.
DynamicIOStatisticsBuilder	withLongFunctionGauge(java.lang.String key, java.util.function.ToLongFunction<java.lang.String> eval)	Add a new evaluator to the gauge statistics.
DynamicIOStatisticsBuilder	withLongFunctionMaximum(java.lang.String key, java.util.function.ToLongFunction<java.lang.String> eval)	Add a new evaluator to the maximum statistics.
DynamicIOStatisticsBuilder	withLongFunctionMinimum(java.lang.String key, java.util.function.ToLongFunction<java.lang.String> eval)	Add a new evaluator to the minimum statistics.
DynamicIOStatisticsBuilder	withMeanStatisticFunction(java.lang.String key, java.util.function.Function<java.lang.String,MeanStatistic> eval)	Add a new evaluator to the mean statistics.
DynamicIOStatisticsBuilder	withMutableCounter(java.lang.String key, MutableCounterLong source)	Build a dynamic counter statistic from a MutableCounterLong.

Methods inherited from class java.lang.Object

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

Constructor Detail

DynamicIOStatisticsBuilder

public DynamicIOStatisticsBuilder()

Method Detail

build

public IOStatistics build()

Build the IOStatistics instance.

Returns:

an instance.

Throws:

java.lang.IllegalStateException - if the builder has already been built.

withLongFunctionCounter

public DynamicIOStatisticsBuilder withLongFunctionCounter(java.lang.String key,
                                                          java.util.function.ToLongFunction<java.lang.String> eval)

Add a new evaluator to the counter statistics.

Parameters:

key - key of this statistic

eval - evaluator for the statistic

Returns:

the builder.

withAtomicLongCounter

public DynamicIOStatisticsBuilder withAtomicLongCounter(java.lang.String key,
                                                        java.util.concurrent.atomic.AtomicLong source)

Add a counter statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic long counter

Returns:

the builder.

withAtomicIntegerCounter

public DynamicIOStatisticsBuilder withAtomicIntegerCounter(java.lang.String key,
                                                           java.util.concurrent.atomic.AtomicInteger source)

Add a counter statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic int counter

Returns:

the builder.

withMutableCounter

public DynamicIOStatisticsBuilder withMutableCounter(java.lang.String key,
                                                     MutableCounterLong source)

Build a dynamic counter statistic from a MutableCounterLong.

Parameters:

key - key of this statistic

source - mutable long counter

Returns:

the builder.

withLongFunctionGauge

public DynamicIOStatisticsBuilder withLongFunctionGauge(java.lang.String key,
                                                        java.util.function.ToLongFunction<java.lang.String> eval)

Add a new evaluator to the gauge statistics.

Parameters:

key - key of this statistic

eval - evaluator for the statistic

Returns:

the builder.

withAtomicLongGauge

public DynamicIOStatisticsBuilder withAtomicLongGauge(java.lang.String key,
                                                      java.util.concurrent.atomic.AtomicLong source)

Add a gauge statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic long gauge

Returns:

the builder.

withAtomicIntegerGauge

public DynamicIOStatisticsBuilder withAtomicIntegerGauge(java.lang.String key,
                                                         java.util.concurrent.atomic.AtomicInteger source)

Add a gauge statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic int gauge

Returns:

the builder.

withLongFunctionMinimum

public DynamicIOStatisticsBuilder withLongFunctionMinimum(java.lang.String key,
                                                          java.util.function.ToLongFunction<java.lang.String> eval)

Add a new evaluator to the minimum statistics.

Parameters:

key - key of this statistic

eval - evaluator for the statistic

Returns:

the builder.

withAtomicLongMinimum

public DynamicIOStatisticsBuilder withAtomicLongMinimum(java.lang.String key,
                                                        java.util.concurrent.atomic.AtomicLong source)

Add a minimum statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic long minimum

Returns:

the builder.

withAtomicIntegerMinimum

public DynamicIOStatisticsBuilder withAtomicIntegerMinimum(java.lang.String key,
                                                           java.util.concurrent.atomic.AtomicInteger source)

Add a minimum statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic int minimum

Returns:

the builder.

withLongFunctionMaximum

public DynamicIOStatisticsBuilder withLongFunctionMaximum(java.lang.String key,
                                                          java.util.function.ToLongFunction<java.lang.String> eval)

Add a new evaluator to the maximum statistics.

Parameters:

key - key of this statistic

eval - evaluator for the statistic

Returns:

the builder.

withAtomicLongMaximum

public DynamicIOStatisticsBuilder withAtomicLongMaximum(java.lang.String key,
                                                        java.util.concurrent.atomic.AtomicLong source)

Add a maximum statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic long maximum

Returns:

the builder.

withAtomicIntegerMaximum

public DynamicIOStatisticsBuilder withAtomicIntegerMaximum(java.lang.String key,
                                                           java.util.concurrent.atomic.AtomicInteger source)

Add a maximum statistic to dynamically return the latest value of the source.

Parameters:

key - key of this statistic

source - atomic int maximum

Returns:

the builder.

withMeanStatisticFunction

public DynamicIOStatisticsBuilder withMeanStatisticFunction(java.lang.String key,
                                                            java.util.function.Function<java.lang.String,MeanStatistic> eval)

Add a new evaluator to the mean statistics. This is a function which must return the mean and the sample count.

Parameters:

key - key of this statistic

eval - evaluator for the statistic

Returns:

the builder.