org.ametiste.scm.broker.broadcast

Class EventMessageBroadcaster

java.lang.Object

org.ametiste.scm.broker.broadcast.EventMessageBroadcaster

All Implemented Interfaces:

MessageBroadcaster<org.ametiste.scm.messaging.data.event.Event>

public class EventMessageBroadcaster
extends java.lang.Object
implements MessageBroadcaster<org.ametiste.scm.messaging.data.event.Event>

Implementation of MessageBroadcaster interface for broadcasting TransportMessage with Event payload.

EventMessageBroadcaster failed broadcast only if there are no subscribers or fail send messages to all subscribers.

Constructor Summary

Constructors

Constructor and Description
EventMessageBroadcaster(org.ametiste.scm.coordinator.accessor.EventSubscribersFetcher fetcher, org.ametiste.scm.messaging.sender.EventSender sender) Create event transport messages broadcaster.

Method Summary

Modifier and Type	Method and Description
void	broadcast(java.util.Collection<org.ametiste.scm.messaging.data.transport.TransportMessage<org.ametiste.scm.messaging.data.event.Event>> messages) Broadcast collection of messages to group of subscribers.

Methods inherited from class java.lang.Object

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

Constructor Detail

EventMessageBroadcaster

public EventMessageBroadcaster(org.ametiste.scm.coordinator.accessor.EventSubscribersFetcher fetcher,
                               org.ametiste.scm.messaging.sender.EventSender sender)

Create event transport messages broadcaster.

Parameters:

fetcher - implementation of EventSubscribersFetcher interface used for fetching subscribers list.

sender - implementation of EventSender interface used for sending messages.

Method Detail

broadcast

public void broadcast(java.util.Collection<org.ametiste.scm.messaging.data.transport.TransportMessage<org.ametiste.scm.messaging.data.event.Event>> messages)
               throws BroadcastOperationException,
                      NoSubscriberException

Description copied from interface: MessageBroadcaster

Broadcast collection of messages to group of subscribers.

Operation is successful if messages successful delivered to at least one subscriber from group.

Specified by:

broadcast in interface MessageBroadcaster<org.ametiste.scm.messaging.data.event.Event>

Parameters:

messages - collection of transport messages with T type payload.

Throws:

BroadcastOperationException - when broadcast operation failed. For example failed send messages to all subscribers group.

NoSubscriberException - when broadcaster receive empty group of subscribers and no one to send.