org.apache.nifi.util

Class StopWatch

java.lang.Object

org.apache.nifi.util.StopWatch

public final class StopWatch
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private long	duration
private long	startNanos

Constructor Summary

Constructors

Constructor and Description
StopWatch() Creates a StopWatch but does not start it
StopWatch(boolean autoStart)

Method Summary

Methods

Modifier and Type	Method and Description
String	calculateDataRate(long bytes)
String	getDuration()
long	getDuration(TimeUnit timeUnit) Returns the amount of time that the StopWatch was running.
long	getElapsed(TimeUnit timeUnit) Returns the amount of time that has elapsed since the timer was started.
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

startNanos

private long startNanos

duration

private long duration

Constructor Detail

StopWatch

public StopWatch()

Creates a StopWatch but does not start it

StopWatch

public StopWatch(boolean autoStart)

Parameters:

autoStart - whether or not the timer should be started automatically

Method Detail

start

public void start()

stop

public void stop()

getDuration

public long getDuration(TimeUnit timeUnit)

Returns the amount of time that the StopWatch was running.

Parameters:

timeUnit - the unit for which the duration should be reported

Returns:

the duration of the stopwatch in the specified unit

Throws:

IllegalStateException - if the StopWatch has not been stopped via stop()

getElapsed

public long getElapsed(TimeUnit timeUnit)

Returns the amount of time that has elapsed since the timer was started.

Parameters:

timeUnit - the unit for which the elapsed time should be computed

Returns:

the elapsed time in the specified unit

calculateDataRate

public String calculateDataRate(long bytes)

getDuration

public String getDuration()