io.micrometer.core.instrument.stats.hist

Class NormalHistogram<T>

java.lang.Object

io.micrometer.core.instrument.stats.hist.NormalHistogram<T>

All Implemented Interfaces:

Histogram<T>

Direct Known Subclasses:

TimeScaleNormalHistogram

public class NormalHistogram<T>
extends java.lang.Object
implements Histogram<T>

A non-cumulative histogram. For discrete data that requires sensible breaks.

Field Summary

Fields

Modifier and Type	Field and Description
protected BucketFunction<? extends T>	f

Constructor Summary

Constructors

Constructor and Description
NormalHistogram(BucketFunction<? extends T> f)

Method Summary

Modifier and Type	Method and Description
static TimeScaleNormalHistogram	buckets(BucketFunction<java.lang.Double> bucketFunction, java.util.concurrent.TimeUnit timeScale)
static <T> NormalHistogram<T>	buckets(BucketFunction<T> bucketFunction)
static BucketFunction<java.lang.Double>	exponential(double start, double exp, int count)
java.util.Collection<Bucket<T>>	getBuckets()
static BucketFunction<java.lang.Double>	linear(double start, double width, int count)
void	observe(double value) Add a sample

Methods inherited from class java.lang.Object

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

Field Detail

f

protected final BucketFunction<? extends T> f

Constructor Detail

NormalHistogram

public NormalHistogram(BucketFunction<? extends T> f)

Method Detail

observe

public void observe(double value)

Description copied from interface: Histogram

Add a sample

Specified by:

observe in interface Histogram<T>

getBuckets

public java.util.Collection<Bucket<T>> getBuckets()

Specified by:

getBuckets in interface Histogram<T>

buckets

public static <T> NormalHistogram<T> buckets(BucketFunction<T> bucketFunction)

buckets

public static TimeScaleNormalHistogram buckets(BucketFunction<java.lang.Double> bucketFunction,
                                               java.util.concurrent.TimeUnit timeScale)

linear

public static BucketFunction<java.lang.Double> linear(double start,
                                                      double width,
                                                      int count)

Parameters:

start - Leftmost bucket

width - The interval between buckets

count - The total number of buckets, yielding count-1 intervals between them.

Returns:

Fixed-width buckets.

exponential

public static BucketFunction<java.lang.Double> exponential(double start,
                                                           double exp,
                                                           int count)

Parameters:

start - Leftmost bucket is start*factor.

exp - The exponent.

count - The total number of buckets, yielding count-1 intervals between them.

Returns:

Exponential-width buckets.