Package io.atomix.cluster.messaging.impl

Class DefaultClusterEventService

java.lang.Object

io.atomix.cluster.messaging.impl.DefaultClusterEventService

All Implemented Interfaces:

ClusterMembershipEventListener, ClusterEventService, ManagedClusterEventService, EventFilter<ClusterMembershipEvent>, EventListener<ClusterMembershipEvent>, Managed<ClusterEventService>

public class DefaultClusterEventService
extends Object
implements ManagedClusterEventService, ClusterMembershipEventListener

Cluster event service.

Constructor Summary

Constructors

Constructor	Description
DefaultClusterEventService(ClusterMembershipService membershipService, MessagingService messagingService)

Method Summary

Modifier and Type	Method	Description
<M> void	broadcast(String topic, M message, Function<M,byte[]> encoder)	Broadcasts a message to all subscribers registered for the given topic.
void	event(ClusterMembershipEvent event)
Set<MemberId>	getSubscribers(String topicName)	Returns a list of remote members subscribed for the given topic.
List<Subscription>	getSubscriptions(String topicName)	Returns a list of subscriptions for the given topic.
boolean	isRunning()
CompletableFuture<ClusterEventService>	start()
CompletableFuture<Void>	stop()
<M> CompletableFuture<Subscription>	subscribe(String topic, Function<byte[],M> decoder, Consumer<M> handler, Executor executor)	Adds a new subscriber for the specified message topic.
<M, R> CompletableFuture<Subscription>	subscribe(String topic, Function<byte[],M> decoder, Function<M,CompletableFuture<R>> handler, Function<R,byte[]> encoder)	Adds a new subscriber for the specified message topic.
<M, R> CompletableFuture<Subscription>	subscribe(String topic, Function<byte[],M> decoder, Function<M,R> handler, Function<R,byte[]> encoder, Executor executor)	Adds a new subscriber for the specified message topic.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.atomix.cluster.messaging.ClusterEventService

broadcast, subscribe, subscribe, subscribe

Methods inherited from interface io.atomix.utils.event.EventFilter

isRelevant

Constructor Details

DefaultClusterEventService

public DefaultClusterEventService(ClusterMembershipService membershipService,
 MessagingService messagingService)

Method Details

broadcast

public <M> void broadcast(String topic,
 M message,
 Function<M,byte[]> encoder)

Description copied from interface: ClusterEventService

Broadcasts a message to all subscribers registered for the given topic.

Specified by:

broadcast in interface ClusterEventService

Type Parameters:

M - message type

Parameters:

topic - message topic

message - message to send

encoder - function for encoding message to byte[]

subscribe

public <M,
R> CompletableFuture<Subscription> subscribe(String topic,
 Function<byte[],M> decoder,
 Function<M,R> handler,
 Function<R,byte[]> encoder,
 Executor executor)

Description copied from interface: ClusterEventService

Adds a new subscriber for the specified message topic.

Specified by:

subscribe in interface ClusterEventService

Type Parameters:

M - incoming message type

R - reply message type

Parameters:

topic - message topic

decoder - decoder for resurrecting incoming message

handler - handler function that processes the incoming message and produces a reply

encoder - encoder for serializing reply

executor - executor to run this handler on

Returns:

future to be completed once the subscription has been propagated

subscribe

public <M,
R> CompletableFuture<Subscription> subscribe(String topic,
 Function<byte[],M> decoder,
 Function<M,CompletableFuture<R>> handler,
 Function<R,byte[]> encoder)

Description copied from interface: ClusterEventService

Adds a new subscriber for the specified message topic.

Specified by:

subscribe in interface ClusterEventService

Type Parameters:

M - incoming message type

R - reply message type

Parameters:

topic - message topic

decoder - decoder for resurrecting incoming message

handler - handler function that processes the incoming message and produces a reply

encoder - encoder for serializing reply

Returns:

future to be completed once the subscription has been propagated

subscribe

public <M> CompletableFuture<Subscription> subscribe(String topic,
 Function<byte[],M> decoder,
 Consumer<M> handler,
 Executor executor)

Description copied from interface: ClusterEventService

Adds a new subscriber for the specified message topic.

Specified by:

subscribe in interface ClusterEventService

Type Parameters:

M - incoming message type

Parameters:

topic - message topic

decoder - decoder to resurrecting incoming message

handler - handler for handling message

executor - executor to run this handler on

Returns:

future to be completed once the subscription has been propagated

getSubscriptions

public List<Subscription> getSubscriptions(String topicName)

Description copied from interface: ClusterEventService

Returns a list of subscriptions for the given topic.

Specified by:

getSubscriptions in interface ClusterEventService

Parameters:

topicName - the topic for which to return subscriptions

Returns:

the subscriptions for the given topic

getSubscribers

public Set<MemberId> getSubscribers(String topicName)

Description copied from interface: ClusterEventService

Returns a list of remote members subscribed for the given topic.

Specified by:

getSubscribers in interface ClusterEventService

Parameters:

topicName - the topic for which to return subscriptions

Returns:

the subscribers for the given topic

start

public CompletableFuture<ClusterEventService> start()

Specified by:

start in interface Managed<ClusterEventService>

isRunning

public boolean isRunning()

Specified by:

isRunning in interface Managed<ClusterEventService>

stop

public CompletableFuture<Void> stop()

Specified by:

stop in interface Managed<ClusterEventService>

event

public void event(ClusterMembershipEvent event)

Specified by:

event in interface EventListener<ClusterMembershipEvent>