@Override
public Subscription subscribe(EventObserver<E> observer) {
EventSubscriber<E> flattenSubscriber = new EventSubscriber<>(observer);
CompositeSubscription subscriptions = new CompositeSubscription();
Subscription streamSub =
streamOfStreams
.map(stream -> stream.onEvent(flattenSubscriber::onEvent))
.observe(EventObserver.create(subscriptions::add, flattenSubscriber::onCompleted));
subscriptions.add(streamSub);
flattenSubscriber.doOnDispose(subscriptions::dispose);
return flattenSubscriber;
}
@Override
public EventSubscriber<T> apply(EventSubscriber<T> childSubscriber) {
EventObserver<T> sourceObserver =
EventObserver.create(
value -> {
if (predicate.test(value)) childSubscriber.onEvent(value);
},
childSubscriber::onCompleted);
return new EventSubscriber<>(sourceObserver);
}