org.jpos.util

Class TPS

java.lang.Object

org.jpos.util.TPS

All Implemented Interfaces:

Loggeable

public class TPS
extends java.lang.Object
implements Loggeable

TPS can be used to measure Transactions Per Second (or transactions during other period of time).

It can operate in two different modes:

• Auto update
• Manual update

When operating in auto update mode, a Timer is created and the number of transactions (calls to tick()) is automatically calculated for every period. Under this mode, user has to call the stop() method when this TPS object is no longer needed, otherwise it will keep a Thread lingering around.

When operating in manual update mode, user has to call one of its floatValue() or intValue() method at regular intervals. The returned value will be the average TPS for the given period since the last call

.

Since:

1.6.7 r2912

Field Summary

Fields

Modifier and Type	Field and Description
protected long	simulatedNanoTime

Constructor Summary

Constructors

Constructor and Description
TPS()
TPS(boolean autoupdate)
TPS(long period, boolean autoupdate)

Method Summary

Modifier and Type	Method and Description
void	dump(java.io.PrintStream p, java.lang.String indent)
float	floatValue()
float	getAvg()
long	getElapsed()
protected long	getNanoTime()
int	getPeak()
long	getPeakWhen()
long	getPeriod()
int	intValue()
void	reset() resets average and peak
void	setSimulatedNanoTime(long simulatedNanoTime)
void	stop()
void	tick()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

simulatedNanoTime

protected long simulatedNanoTime

Constructor Detail

TPS

public TPS()

TPS

public TPS(boolean autoupdate)

Parameters:

autoupdate - true to auto update

TPS

public TPS(long period,
           boolean autoupdate)

Parameters:

period - in millis

autoupdate - true to autoupdate

Method Detail

tick

public void tick()

floatValue

public float floatValue()

intValue

public int intValue()

getAvg

public float getAvg()

getPeak

public int getPeak()

getPeakWhen

public long getPeakWhen()

reset

public void reset()

resets average and peak

getPeriod

public long getPeriod()

getElapsed

public long getElapsed()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

stop

public void stop()

dump

public void dump(java.io.PrintStream p,
                 java.lang.String indent)

Specified by:

dump in interface Loggeable

setSimulatedNanoTime

public void setSimulatedNanoTime(long simulatedNanoTime)

getNanoTime

protected long getNanoTime()