Package com.levigo.jadice.server.core.util.monitoring

Class TimeRecorder

java.lang.Object

com.levigo.jadice.server.core.util.monitoring.TimeRecorder

All Implemented Interfaces:

Recorder<Long>

public class TimeRecorder
extends Object
implements Recorder<Long>

Utility class to record duration statistics.

Since:

jadice server 4.3.1.1

Constructor Summary

Constructors

Constructor	Description
TimeRecorder(int numberRecentObservations)	Create a new statistic recorder

Method Summary

Modifier and Type	Method	Description
void	addObservation(long duration, TimeUnit unit)	Add an observation.
void	addObservation(Long milliseconds)	Add an observation.
long	getAverage()
long	getLastObservation()
long	getMaximum()
long	getMinimun()
long	getNumberOfObservations()
long	getRecentAverage()
long	getRecentMaximum()
long	getRecentMinimum()
void	reset()	Clear all data recorded so far.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeRecorder

public TimeRecorder(int numberRecentObservations)

Create a new statistic recorder

Parameters:

numberRecentObservations - number of observations that are not aggregated and can be retrieved via the getRecent* methods.

Method Detail

addObservation

public void addObservation(Long milliseconds)

Add an observation.

Specified by:

addObservation in interface Recorder<Long>

Parameters:

milliseconds - Duration of the observation in milliseconds

addObservation

public void addObservation(long duration,
                           TimeUnit unit)

Add an observation.

Parameters:

duration - Duration of the observation

unit - TimeUnit of the observation.

getNumberOfObservations

public long getNumberOfObservations()

Returns:

The number of observations recorded so far.

getMaximum

public long getMaximum()

Returns:

The maximum duration in milliseconds of all observations for far. Is 0 if there are no observations yet.

getMinimun

public long getMinimun()

Returns:

The minimum duration in milliseconds of all observations for far. Is 0 if there are no observations yet.

getAverage

public long getAverage()

Returns:

The average duration in milliseconds of all observations for far. Is 0 if there are no observations yet.

getRecentMaximum

public long getRecentMaximum()

Returns:

The maximum duration in milliseconds of the recent observations. Is 0 if there are no observations yet.

getRecentMinimum

public long getRecentMinimum()

Returns:

The minimum duration in milliseconds of the recent observations. Is 0 if there are no observations yet.

getRecentAverage

public long getRecentAverage()

Returns:

The average duration in milliseconds of the recent observations. Is 0 if there are no observations yet.

getLastObservation

public long getLastObservation()

Returns:

The duration in milliseconds of the last observation. Is 0 if there are no observations yet.

reset

public void reset()

Clear all data recorded so far.

Specified by:

reset in interface Recorder<Long>