org.apache.kafka.server.util.timer

Class SystemTimer

java.lang.Object

org.apache.kafka.server.util.timer.SystemTimer

All Implemented Interfaces:

AutoCloseable, Timer

public class SystemTimer
extends Object
implements Timer

Constructor Summary

Constructors

Constructor and Description
SystemTimer(String executorName)
SystemTimer(String executorName, long tickMs, int wheelSize, long startMs)

Method Summary

Modifier and Type	Method and Description
void	add(TimerTask timerTask) Add a new task to this executor.
boolean	advanceClock(long timeoutMs) Advances the clock if there is an expired bucket.
void	close()
int	size() Get the number of tasks pending execution

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemTimer

public SystemTimer(String executorName)

SystemTimer

public SystemTimer(String executorName,
                   long tickMs,
                   int wheelSize,
                   long startMs)

Method Detail

add

public void add(TimerTask timerTask)

Description copied from interface: Timer

Add a new task to this executor. It will be executed after the task's delay (beginning from the time of submission)

Specified by:

add in interface Timer

Parameters:

timerTask - the task to add

advanceClock

public boolean advanceClock(long timeoutMs)
                     throws InterruptedException

Advances the clock if there is an expired bucket. If there isn't any expired bucket when called, waits up to timeoutMs before giving up.

Specified by:

advanceClock in interface Timer

Returns:

whether or not any tasks were executed

Throws:

InterruptedException

size

public int size()

Description copied from interface: Timer

Get the number of tasks pending execution

Specified by:

size in interface Timer

Returns:

the number of tasks

close

public void close()

Specified by:

close in interface AutoCloseable