tachyon.heartbeat

Class HeartbeatScheduler

java.lang.Object

tachyon.heartbeat.HeartbeatScheduler

public final class HeartbeatScheduler
extends Object

This class can be used for controlling heartbeat execution.

Constructor Summary

Constructors

Constructor and Description
HeartbeatScheduler()

Method Summary

Methods

Modifier and Type	Method and Description
static void	addTimer(ScheduledTimer timer)
static void	await(String name) Waits until the given thread can be executed.
static boolean	await(String name, long time, TimeUnit unit) Waits until the given thread can be executed or the given timeout expires.
static Set<String>	getThreadNames()
static void	removeTimer(ScheduledTimer timer)
static void	schedule(String threadName) Schedules execution of a heartbeat for the given thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

HeartbeatScheduler

public HeartbeatScheduler()

Method Detail

addTimer

public static void addTimer(ScheduledTimer timer)

Parameters:

timer - a timer to add to the scheduler

removeTimer

public static void removeTimer(ScheduledTimer timer)

Parameters:

timer - a timer to remove from the scheduler

getThreadNames

public static Set<String> getThreadNames()

Returns:

the set of threads present in the scheduler

schedule

public static void schedule(String threadName)

Schedules execution of a heartbeat for the given thread.

Parameters:

threadName - a name of the thread for which heartbeat is to be executed

await

public static void await(String name)
                  throws InterruptedException

Waits until the given thread can be executed.

Parameters:

name - a name of the thread to wait for

Throws:

InterruptedException

await

public static boolean await(String name,
            long time,
            TimeUnit unit)
                     throws InterruptedException

Waits until the given thread can be executed or the given timeout expires.

Parameters:

name - a name of the thread to wait for

time - the maximum time to wait

unit - the time unit of the time argument

Returns:

false if the waiting time detectably elapsed before return from the method, else true

Throws:

InterruptedException