org.apache.ambari.server.events.publishers

Class AlertEventPublisher

java.lang.Object

org.apache.ambari.server.events.publishers.AlertEventPublisher

public final class AlertEventPublisher
extends Object

The AlertEventPublisher is used to wrap a customized instance of an AsyncEventBus that is only used for alerts. In general, Ambari should have its own application-wide event bus for application events (session information, state changes, etc), but since alerts can contain many events being published concurrently, it makes sense to encapsulate a specific alert bus in this publisher.

Constructor Summary

Constructors

Constructor and Description
AlertEventPublisher(Configuration config) Constructor.

Method Summary

Modifier and Type	Method and Description
void	publish(AlertEvent event) Publishes the specified event to all registered listeners that Subscribe to any of the AlertEvent instances.
void	register(Object object) Register a listener to receive events.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlertEventPublisher

@Inject
public AlertEventPublisher(Configuration config)

Constructor.

Method Detail

publish

public void publish(AlertEvent event)

Publishes the specified event to all registered listeners that Subscribe to any of the AlertEvent instances.

Parameters:

event -

register

public void register(Object object)

Register a listener to receive events. The listener should use the Subscribe annotation.

Parameters:

object - the listener to receive events.