com.netflix.spectator.atlas.impl

Class Consolidator.AbstractConsolidator

java.lang.Object

com.netflix.spectator.atlas.impl.Consolidator.AbstractConsolidator

All Implemented Interfaces:

Consolidator

Direct Known Subclasses:

Consolidator.Avg, Consolidator.Max

Enclosing interface:

Consolidator

public abstract static class Consolidator.AbstractConsolidator
extends Object
implements Consolidator

Base class for consolidator implementations.

Nested Class Summary

Nested classes/interfaces inherited from interface com.netflix.spectator.atlas.impl.Consolidator

Consolidator.AbstractConsolidator, Consolidator.Avg, Consolidator.Max, Consolidator.None

Field Summary

Fields

Modifier and Type	Field and Description
protected int	multiple Multiple from primary to consolidated step.
protected long	step Consolidated step size.

Method Summary

Modifier and Type	Method and Description
protected abstract double	aggregate(double v1, double v2) Combines two values to create an aggregate used as the consolidated value.
protected abstract double	complete(double v) Performs any final computation on the aggregated value.
boolean	isEmpty() Returns true if the state is the same as it would be if a new instance of the consolidator was created.
void	update(long rawTimestamp, double value) Update the state with a new primary datapoint.
double	value(long t) Return the consolidated value for the specified timestamp.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.spectator.atlas.impl.Consolidator

create, create, create, isGauge, isGauge, update

Field Detail

step

protected final long step

Consolidated step size.

multiple

protected final int multiple

Multiple from primary to consolidated step.

Method Detail

aggregate

protected abstract double aggregate(double v1,
                                    double v2)

Combines two values to create an aggregate used as the consolidated value.

complete

protected abstract double complete(double v)

Performs any final computation on the aggregated value.

update

public void update(long rawTimestamp,
                   double value)

Description copied from interface: Consolidator

Update the state with a new primary datapoint.

Specified by:

update in interface Consolidator

Parameters:

rawTimestamp - Timestamp for the new value.

value - Value to include in the consolidated aggregate. If there is no new measurement, then NaN can be used to force the completion of the consolidated value.

value

public double value(long t)

Description copied from interface: Consolidator

Return the consolidated value for the specified timestamp. The timestamp should be for the last completed interval.

Specified by:

value in interface Consolidator

isEmpty

public boolean isEmpty()

Description copied from interface: Consolidator

Returns true if the state is the same as it would be if a new instance of the consolidator was created. This can be used to check if the current instance can be garbage collected.

Specified by:

isEmpty in interface Consolidator