io.axoniq.axonserver.connector.impl

Class HeartbeatMonitor

java.lang.Object

io.axoniq.axonserver.connector.impl.HeartbeatMonitor

public class HeartbeatMonitor
extends Object

Monitor dealing with all the logic around sending out heartbeats.

Constructor Summary

Constructors

Constructor and Description
HeartbeatMonitor(ScheduledExecutorService executor, HeartbeatSender heartbeatSender, Runnable onConnectionCorrupted) Constructs a HeartbeatMonitor.

Method Summary

Modifier and Type	Method and Description
void	disableHeartbeat() Turn off heartbeat sending by this HeartbeatMonitor.
void	enableHeartbeat(long interval, long timeout, TimeUnit timeUnit) Turn on heartbeat sending by this HeartbeatMonitor.
void	handleIncomingBeat(ReplyChannel<PlatformInboundInstruction> reply) Handler of PlatformInboundInstruction requesting a heartbeat from this connector.
void	pause() Pause the process of sending out heartbeats by this monitor.
void	resume() Resume the process of sending out heartbeats by this monitor.

Methods inherited from class java.lang.Object

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

Constructor Detail

HeartbeatMonitor

public HeartbeatMonitor(ScheduledExecutorService executor,
                        HeartbeatSender heartbeatSender,
                        Runnable onConnectionCorrupted)

Constructs a HeartbeatMonitor.

Parameters:

executor - the ScheduledExecutorService used to schedule operations to validate if a heartbeat should be send with the given heartbeatSender

heartbeatSender - the HeartbeatSender used to send heartbeats with

onConnectionCorrupted - operation to perform if a heartbeat has been missed. Can be used to force a reconnect of a channel for example

Method Detail

enableHeartbeat

public void enableHeartbeat(long interval,
                            long timeout,
                            TimeUnit timeUnit)

Turn on heartbeat sending by this HeartbeatMonitor.

Parameters:

interval - the interval at which heartbeats occur. Will use a minimal value of 500 milliseconds to reschedule heartbeat validation

timeout - the timeout within which this monitor expects responses to the dispatched heartbeats. If this timeout is hit, the given onHeartbeatMissed on construction will be called

timeUnit - the TimeUnit used to define in which time frame both the given interval and timeout reside. Will be used to change both values to their representative in milliseconds

disableHeartbeat

public void disableHeartbeat()

Turn off heartbeat sending by this HeartbeatMonitor.

pause

public void pause()

Pause the process of sending out heartbeats by this monitor.

resume

public void resume()

Resume the process of sending out heartbeats by this monitor.

handleIncomingBeat

public void handleIncomingBeat(ReplyChannel<PlatformInboundInstruction> reply)

Handler of PlatformInboundInstruction requesting a heartbeat from this connector. The given ReplyChannel is used to send responding heartbeat message with.

Parameters:

reply - the ReplyChannel to send a heartbeat reply message over