Package io.nosqlbench.api.engine.metrics

Class NicerHistogram

java.lang.Object

com.codahale.metrics.Histogram

io.nosqlbench.api.engine.metrics.NicerHistogram

All Implemented Interfaces:

com.codahale.metrics.Counting, com.codahale.metrics.Metric, com.codahale.metrics.Sampling, DeltaSnapshotter, HdrDeltaHistogramAttachment, HdrDeltaHistogramProvider, HistogramAttachment

public class NicerHistogram
extends com.codahale.metrics.Histogram
implements DeltaSnapshotter, HdrDeltaHistogramAttachment, HistogramAttachment

Constructor Summary

Constructors

Constructor	Description
NicerHistogram(String metricName, DeltaHdrHistogramReservoir hdrHistogramReservoir)

Method Summary

Modifier and Type	Method	Description
NicerHistogram	attachHdrDeltaHistogram()	Attach a metric.
com.codahale.metrics.Histogram	attachHistogram(com.codahale.metrics.Histogram histogram)
DeltaSnapshotReader	getDeltaReader()
ConvenientSnapshot	getDeltaSnapshot(long cacheTimeMillis)
org.HdrHistogram.Histogram	getNextHdrDeltaHistogram()	Create a new interval histogram from the current data, then reset the histogram reservoir.
ConvenientSnapshot	getSnapshot()	Only return a new snapshot form current reservoir data if the cached one has expired.
void	update(long value)

Methods inherited from class com.codahale.metrics.Histogram

getCount, update

Methods inherited from class java.lang.Object

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

Constructor Details

NicerHistogram

public NicerHistogram(String metricName,
 DeltaHdrHistogramReservoir hdrHistogramReservoir)

Method Details

getDeltaReader

public DeltaSnapshotReader getDeltaReader()

Specified by:

getDeltaReader in interface DeltaSnapshotter

getSnapshot

public ConvenientSnapshot getSnapshot()

Only return a new snapshot form current reservoir data if the cached one has expired.

Specified by:

getSnapshot in interface com.codahale.metrics.Sampling

Overrides:

getSnapshot in class com.codahale.metrics.Histogram

Returns:

a new delta snapshot, or the cached one

getDeltaSnapshot

public ConvenientSnapshot getDeltaSnapshot(long cacheTimeMillis)

Specified by:

getDeltaSnapshot in interface DeltaSnapshotter

attachHdrDeltaHistogram

public NicerHistogram attachHdrDeltaHistogram()

Description copied from interface: HdrDeltaHistogramAttachment

Attach a metric.

Specified by:

attachHdrDeltaHistogram in interface HdrDeltaHistogramAttachment

Returns:

the attached metric, after adding to the mirrors for the metric.

attachHistogram

public com.codahale.metrics.Histogram attachHistogram(com.codahale.metrics.Histogram histogram)

Specified by:

attachHistogram in interface HistogramAttachment

update

public void update(long value)

Overrides:

update in class com.codahale.metrics.Histogram

getNextHdrDeltaHistogram

public org.HdrHistogram.Histogram getNextHdrDeltaHistogram()

Description copied from interface: HdrDeltaHistogramProvider

Create a new interval histogram from the current data, then reset the histogram reservoir.

Specified by:

getNextHdrDeltaHistogram in interface HdrDeltaHistogramProvider

Returns:

the new interval histogram