Add convenient getter for stream name

[unbearables]

It would be nice to have StreamListenerContainer.getStreamName() method to fulfill need to dynamically stop/start listeners in reaction of broker events.

Let's say I need to react to RabbitMQ broker events of queue.created / queue.deleted (see ~ name of queue is sent in event) and I need to start and stop listeners, which are assigned to these streams. Currently I need to create an extra map of listenerId to streamName OR include streamName in listenerId (e.g. listener:{streamName}) to be able to carry our operations on listener.

A simple getter for streamName on StreamListenerContainer would allow me to react to these changes dynamically without extra code effort.

An concise example with BrokerEventListener:

private final RabbitListenerEndpointRegistry listenerRegistry;

@Bean
public BrokerEventListener eventListener(ConnectionFactory connectionFactory) {
    return new BrokerEventListener(connectionFactory, "queue.created", "queue.deleted");
}

@EventListener(condition = "event.eventType == 'queue.created'")
public void onQueueCreation(BrokerEvent event) {
    if (!event.getEventProperties().get("type").equals("rabbit_stream_queue")) {
        return; // handle only streams
    }
    final String createdStream = (String) event.getEventProperties().get("name");
    listenerRegistry.getListenerContainers()
        .stream()
        .filter(StreamListenerContainer.class::isInstance)
        .map(StreamListenerContainer.class::cast)
        .filter(listener -> listener.getStreamName().equals(createdStream))
        // .filter(listener -> listener.getListenerId().equals("listener:" + streamName)) // depends on listenerId without 'getStreamName'
        .forEach(listener -> listener.start());
}

[artembilan]

Must be with this..
Also add @since 3.2.3 to this method JavaDocs and your name to the @author list.
Thanks.

[artembilan]

@unbearables ,
Thank you for contribution; looking forward for more!