Class DoubleBase2ExponentialHistogramAggregator

java.lang.Object

io.opentelemetry.sdk.metrics.internal.aggregator.DoubleBase2ExponentialHistogramAggregator

All Implemented Interfaces:

Aggregator<ExponentialHistogramPointData, DoubleExemplarData>

public final class DoubleBase2ExponentialHistogramAggregator
extends Object
implements Aggregator<ExponentialHistogramPointData, DoubleExemplarData>

Aggregator that generates base2 exponential histograms.

This class is internal and is hence not for public use. Its APIs are unstable and can change at any time.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static final class	DoubleBase2ExponentialHistogramAggregator.Handle

Field Summary

Fields

Modifier and Type	Field	Description
private final int	maxBuckets
private final int	maxScale
private final MemoryMode	memoryMode
private final Supplier<ExemplarReservoir<DoubleExemplarData>>	reservoirSupplier

Constructor Summary

Constructors

Constructor	Description
DoubleBase2ExponentialHistogramAggregator(Supplier<ExemplarReservoir<DoubleExemplarData>> reservoirSupplier, int maxBuckets, int maxScale, MemoryMode memoryMode)	Constructs an exponential histogram aggregator.

Method Summary

Modifier and Type	Method	Description
AggregatorHandle<ExponentialHistogramPointData, DoubleExemplarData>	createHandle()	Returns a new AggregatorHandle.
MetricData	toMetricData(Resource resource, InstrumentationScopeInfo instrumentationScopeInfo, MetricDescriptor metricDescriptor, Collection<ExponentialHistogramPointData> points, AggregationTemporality temporality)	Returns the MetricData that this Aggregation will produce.

Methods inherited from class Object

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

Methods inherited from interface Aggregator

copyPoint, createReusablePoint, diff, diffInPlace, toPoint, toPoint

Field Details

reservoirSupplier

private final Supplier<ExemplarReservoir<DoubleExemplarData>> reservoirSupplier

maxBuckets

private final int maxBuckets

maxScale

private final int maxScale

memoryMode

private final MemoryMode memoryMode

Constructor Details

DoubleBase2ExponentialHistogramAggregator

public DoubleBase2ExponentialHistogramAggregator(Supplier<ExemplarReservoir<DoubleExemplarData>> reservoirSupplier,
 int maxBuckets,
 int maxScale,
 MemoryMode memoryMode)

Constructs an exponential histogram aggregator.

Parameters:

reservoirSupplier - Supplier of exemplar reservoirs per-stream.

Method Details

createHandle

public AggregatorHandle<ExponentialHistogramPointData, DoubleExemplarData> createHandle()

Description copied from interface: Aggregator

Returns a new AggregatorHandle. This MUST by used by the synchronous to aggregate recorded measurements during the collection cycle.

Specified by:

createHandle in interface Aggregator<ExponentialHistogramPointData, DoubleExemplarData>

Returns:

a new AggregatorHandle.

toMetricData

public MetricData toMetricData(Resource resource,
 InstrumentationScopeInfo instrumentationScopeInfo,
 MetricDescriptor metricDescriptor,
 Collection<ExponentialHistogramPointData> points,
 AggregationTemporality temporality)

Description copied from interface: Aggregator

Returns the MetricData that this Aggregation will produce.

Specified by:

toMetricData in interface Aggregator<ExponentialHistogramPointData, DoubleExemplarData>

Parameters:

resource - the resource producing the metric.

instrumentationScopeInfo - the scope that instrumented the metric.

metricDescriptor - the name, description and unit of the metric.

points - list of points

temporality - the temporality of the metric.

Returns:

the MetricDataType that this Aggregation will produce.