org.apache.slider.server.appmaster.actions

Class RenewingAction<A extends AsyncAction>

java.lang.Object

org.apache.slider.server.appmaster.actions.AsyncAction

org.apache.slider.server.appmaster.actions.RenewingAction<A>

All Implemented Interfaces:

Comparable<Delayed>, Delayed

public class RenewingAction<A extends AsyncAction>
extends AsyncAction

This action executes then reschedules an inner action; a limit can specify the number of times to run

Field Summary

Fields

Modifier and Type	Field and Description
AtomicInteger	executionCount
int	limit

Fields inherited from class org.apache.slider.server.appmaster.actions.AsyncAction

ATTR_CHANGES_APP_SIZE, ATTR_HALTS_APP, ATTR_REVIEWS_APP_SIZE, attrs, name

Constructor Summary

Constructors

Constructor and Description
RenewingAction(A action, long initialDelay, long interval, TimeUnit timeUnit, int limit) Rescheduling action

Method Summary

Methods

Modifier and Type	Method and Description
void	execute(SliderAppMaster appMaster, QueueAccess queueService, AppState appState) Execute the inner action then reschedule ourselves
A	getAction() Get the action
int	getExecutionCount()
long	getInterval()
int	getLimit()
TimeUnit	getTimeUnit()
void	updateInterval(long delay, TimeUnit timeUnit)

Methods inherited from class org.apache.slider.server.appmaster.actions.AsyncAction

compareTo, convertAndOffset, getAttrs, getDelay, getNanos, hasAttr, now, setNanos, toString

Methods inherited from class java.lang.Object

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

Field Detail

executionCount

public final AtomicInteger executionCount

limit

public final int limit

Constructor Detail

RenewingAction

public RenewingAction(A action,
              long initialDelay,
              long interval,
              TimeUnit timeUnit,
              int limit)

Rescheduling action

Parameters:

action - action to execute

initialDelay - initial delay

interval - interval for later delays

timeUnit - time unit for all times

limit - limit on the no. of executions. If 0 or less: no limit

Method Detail

execute

public void execute(SliderAppMaster appMaster,
           QueueAccess queueService,
           AppState appState)
             throws Exception

Execute the inner action then reschedule ourselves

Specified by:

execute in class AsyncAction

Parameters:

appMaster -

queueService -

appState -

Throws:

Exception

IOException

getAction

public A getAction()

Get the action

Returns:

getInterval

public long getInterval()

updateInterval

public void updateInterval(long delay,
                  TimeUnit timeUnit)

getTimeUnit

public TimeUnit getTimeUnit()

getExecutionCount

public int getExecutionCount()

getLimit

public int getLimit()