org.apache.pulsar.broker.delayed

Class InMemoryDelayedDeliveryTracker

java.lang.Object

org.apache.pulsar.broker.delayed.InMemoryDelayedDeliveryTracker

All Implemented Interfaces:

io.netty.util.TimerTask, AutoCloseable, DelayedDeliveryTracker

public class InMemoryDelayedDeliveryTracker
extends Object
implements DelayedDeliveryTracker, io.netty.util.TimerTask

Field Summary

Fields

Modifier and Type	Field and Description
static long	DETECT_FIXED_DELAY_LOOKAHEAD_MESSAGES

Method Summary

Modifier and Type	Method and Description
boolean	addMessage(long ledgerId, long entryId, long deliverAt) Add a message to the tracker.
void	clear() Clear all delayed messages from the tracker.
void	close() Close the subscription tracker and release all resources.
long	getNumberOfDelayedMessages()
Set<PositionImpl>	getScheduledMessages(int maxMessages) Get a set of position of messages that have already reached.
boolean	hasMessageAvailable() Return true if there's at least a message that is scheduled to be delivered already.
void	resetTickTime(long tickTime) Reset tick time use zk policies cache.
void	run(io.netty.util.Timeout timeout)
boolean	shouldPauseAllDeliveries() Tells whether the dispatcher should pause any message deliveries, until the DelayedDeliveryTracker has more messages available.

Methods inherited from class java.lang.Object

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

Field Detail

DETECT_FIXED_DELAY_LOOKAHEAD_MESSAGES

public static final long DETECT_FIXED_DELAY_LOOKAHEAD_MESSAGES

See Also:

Constant Field Values

Method Detail

addMessage

public boolean addMessage(long ledgerId,
                          long entryId,
                          long deliverAt)

Description copied from interface: DelayedDeliveryTracker

Add a message to the tracker.

Specified by:

addMessage in interface DelayedDeliveryTracker

Parameters:

ledgerId - the ledgerId

entryId - the entryId

deliverAt - the absolute timestamp at which the message should be tracked

Returns:

true if the message was added to the tracker or false if it should be delivered immediately

hasMessageAvailable

public boolean hasMessageAvailable()

Return true if there's at least a message that is scheduled to be delivered already.

Specified by:

hasMessageAvailable in interface DelayedDeliveryTracker

getScheduledMessages

public Set<PositionImpl> getScheduledMessages(int maxMessages)

Get a set of position of messages that have already reached.

Specified by:

getScheduledMessages in interface DelayedDeliveryTracker

resetTickTime

public void resetTickTime(long tickTime)

Description copied from interface: DelayedDeliveryTracker

Reset tick time use zk policies cache.

Specified by:

resetTickTime in interface DelayedDeliveryTracker

Parameters:

tickTime - The tick time for when retrying on delayed delivery messages

clear

public void clear()

Description copied from interface: DelayedDeliveryTracker

Clear all delayed messages from the tracker.

Specified by:

clear in interface DelayedDeliveryTracker

getNumberOfDelayedMessages

public long getNumberOfDelayedMessages()

Specified by:

getNumberOfDelayedMessages in interface DelayedDeliveryTracker

Returns:

the number of delayed messages being tracked.

run

public void run(io.netty.util.Timeout timeout)
         throws Exception

Specified by:

run in interface io.netty.util.TimerTask

Throws:

Exception

close

public void close()

Description copied from interface: DelayedDeliveryTracker

Close the subscription tracker and release all resources.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface DelayedDeliveryTracker

shouldPauseAllDeliveries

public boolean shouldPauseAllDeliveries()

Description copied from interface: DelayedDeliveryTracker

Tells whether the dispatcher should pause any message deliveries, until the DelayedDeliveryTracker has more messages available.

Specified by:

shouldPauseAllDeliveries in interface DelayedDeliveryTracker