Package org.terracotta.statistics.derived.latency

Class LatencyPeriodAccumulator

java.lang.Object

org.terracotta.statistics.derived.latency.LatencyPeriodAccumulator

All Implemented Interfaces:

LatencyStatistic, ChainedEventObserver, ChainedObserver

public class LatencyPeriodAccumulator
extends java.lang.Object
implements LatencyStatistic, ChainedEventObserver

Field Summary

Fields

Modifier and Type	Field	Description
private LatencyAccumulator	accumulator
private long	end
private long	start

Constructor Summary

Constructors

Constructor	Description
LatencyPeriodAccumulator(long start, long length, long... latencies)

Method Summary

Modifier and Type	Method	Description
LatencyAccumulator	accumulator()
double	average()
long	end()
void	event(long timeNs, long latencyNs)	Called to indicate an event happened.
boolean	isAfter(long time)
boolean	isBefore(long time)
java.lang.Long	maximum()
java.lang.Long	minimum()
long	start()
java.lang.String	toString()
boolean	tryAccumulate(long time, long latency)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terracotta.statistics.derived.latency.LatencyStatistic

averageStatistic, maximumStatistic, minimumStatistic

Field Detail

accumulator

private final LatencyAccumulator accumulator

start

private final long start

end

private final long end

Constructor Detail

LatencyPeriodAccumulator

LatencyPeriodAccumulator(long start,
                         long length,
                         long... latencies)

Method Detail

isBefore

public boolean isBefore(long time)

isAfter

public boolean isAfter(long time)

start

public long start()

Returns:

Start time (inclusive) for this period.

end

public long end()

Returns:

End time (exclusive) for this period.

accumulator

public LatencyAccumulator accumulator()

tryAccumulate

public boolean tryAccumulate(long time,
                             long latency)

event

public void event(long timeNs,
                  long latencyNs)

Description copied from interface: ChainedEventObserver

Called to indicate an event happened.

Specified by:

event in interface ChainedEventObserver

Parameters:

timeNs - the clock at event completion in ns

latencyNs - the event latency in ns

minimum

public java.lang.Long minimum()

Specified by:

minimum in interface LatencyStatistic

Returns:

The minimum in ns or null if it does not exist yet

maximum

public java.lang.Long maximum()

Specified by:

maximum in interface LatencyStatistic

Returns:

The maximum in ns or null if it does not exist yet

average

public double average()

Specified by:

average in interface LatencyStatistic

Returns:

The average in ns or NaN if no value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object