fish.payara.nucleus.eventbus

Class EventBus

java.lang.Object

fish.payara.nucleus.eventbus.EventBus

All Implemented Interfaces:

MonitoringDataSource, EventListener

@Service(name="payara-event-bus")
 @RunLevel(value=10)
public class EventBus
extends Object
implements EventListener, MonitoringDataSource

A Hazelcast based Event Bus for Payara

Since:

4.1.153

Author:

steve

Nested Class Summary

Nested classes/interfaces inherited from interface org.glassfish.api.event.EventListener

EventListener.Event<T>

Constructor Summary

Constructors

Constructor and Description
EventBus()

Method Summary

Modifier and Type	Method and Description
boolean	addMessageReceiver(String topic, MessageReceiver mr) Adds a message receiver to listen to message send on the Hazelcast EventBus
void	collect(MonitoringDataCollector rootCollector) Collects all the data points of this at the current moment.
void	event(EventListener.Event event) Process a Glassfish/Payara event
void	postConstruct()
boolean	publish(String topic, ClusterMessage message) Sends out a message to all listeners in the Hazelcast sluster that are listening to the topic
void	removeMessageReceiver(String topic, MessageReceiver mr) Stops a message receiver from listening to messages on the specified topic

Methods inherited from class java.lang.Object

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

Constructor Detail

EventBus

public EventBus()

Method Detail

postConstruct

@PostConstruct
public void postConstruct()

collect

public void collect(MonitoringDataCollector rootCollector)

Description copied from interface: MonitoringDataSource

Collects all the data points of this at the current moment.

Specified by:

collect in interface MonitoringDataSource

Parameters:

rootCollector - the MonitoringDataCollector instance to use to collect the data points of this source

publish

public boolean publish(String topic,
                       ClusterMessage message)

Sends out a message to all listeners in the Hazelcast sluster that are listening to the topic

Parameters:

topic -

message -

Returns:

addMessageReceiver

public boolean addMessageReceiver(String topic,
                                  MessageReceiver mr)

Adds a message receiver to listen to message send on the Hazelcast EventBus

Parameters:

topic - The name of the topic to recive messages on

mr - A MessageReciever to listen for messages

Returns:

true if successfully registered, false otherwise (i.e. if Hazelcast is not enabled)

removeMessageReceiver

public void removeMessageReceiver(String topic,
                                  MessageReceiver mr)

Stops a message receiver from listening to messages on the specified topic

Parameters:

topic - The name of the topic that messages have been received on

mr - The MessageReciever to stop listening for messages

event

public void event(EventListener.Event event)

Description copied from interface: EventListener

Process a Glassfish/Payara event

Specified by:

event in interface EventListener