Package com.wavefront.agent.queueing

Class QueueController<T extends DataSubmissionTask<T>>

java.lang.Object

java.util.TimerTask

com.wavefront.agent.queueing.QueueController<T>

Type Parameters:

T - submission task type

All Implemented Interfaces:

Managed, Runnable

public class QueueController<T extends DataSubmissionTask<T>>
extends TimerTask
implements Managed

A queue controller (one per entity/port). Responsible for reporting queue-related metrics and adjusting priority across queues.

Author:

[email protected]

Field Summary

Fields

Modifier and Type	Field	Description
protected HandlerKey	handlerKey
protected List<QueueProcessor<T>>	processorTasks
protected com.google.common.util.concurrent.RateLimiter	reportRateLimiter
protected Supplier<Long>	timeProvider
protected Timer	timer

Constructor Summary

Constructors

Constructor	Description
QueueController(HandlerKey handlerKey, List<QueueProcessor<T>> processorTasks, Consumer<Integer> backlogSizeSink)

Method Summary

Modifier and Type	Method	Description
void	run()
void	start()	Starts the process.
void	stop()	Stops the process.

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

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

Field Detail

handlerKey

protected final HandlerKey handlerKey

processorTasks

protected final List<QueueProcessor<T extends DataSubmissionTask<T>>> processorTasks

timeProvider

protected final Supplier<Long> timeProvider

timer

protected final Timer timer

reportRateLimiter

protected final com.google.common.util.concurrent.RateLimiter reportRateLimiter

Constructor Detail

QueueController

public QueueController(HandlerKey handlerKey,
                       List<QueueProcessor<T>> processorTasks,
                       @Nullable
                       Consumer<Integer> backlogSizeSink)

Parameters:

handlerKey - Pipeline handler key

processorTasks - List of QueueProcessor tasks responsible for processing the backlog.

backlogSizeSink - Where to report backlog size.

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Specified by:

run in class TimerTask

start

public void start()

Description copied from interface: Managed

Starts the process.

Specified by:

start in interface Managed

stop

public void stop()

Description copied from interface: Managed

Stops the process.

Specified by:

stop in interface Managed