Examples with UnaryPredicate cz.o2.proxima.functional.UnaryPredicate used on opensource projects

Example 1 with UnaryPredicate

use of cz.o2.proxima.functional.UnaryPredicate in project proxima-platform by O2-Czech-Republic.

the class ListCommitLog method pushToObserverBulk.

private ObserveHandle pushToObserverBulk(@Nonnull String name, UnaryPredicate<Integer> allowOffsetPredicate, CommitLogObserver observer) {
    observer.onRepartition(asRepartitionContext(Collections.singletonList(PARTITION)));
    Consumer consumer = CONSUMERS.get(uuid).computeIfAbsent(name, k -> new Consumer(uuid, name, watermarkEstimator));
    ListObserveHandle handle = new ListObserveHandle(uuid, name);
    Set<Integer> consumerFedOffsets = Collections.synchronizedSet(new HashSet<>());
    pushTo((element, offset) -> {
        if (handle.isClosed()) {
            return false;
        }
        final CommitLogObserver.OffsetCommitter committer = (succ, exc) -> {
            if (exc != null) {
                observer.onError(exc);
            }
        };
        final boolean acceptable;
        OnNextContext context = null;
        synchronized (consumer) {
            acceptable = (externalizableOffsets || !consumer.getAckedOffsets().contains(offset) && !consumer.getInflightOffsets().contains(offset)) && allowOffsetPredicate.apply(offset);
            if (acceptable) {
                context = consumer.asOnNextContextBulk(committer, offset, consumerFedOffsets);
            }
        }
        if (acceptable) {
            return observer.onNext(element, context);
        }
        return true;
    }, externalizableOffsets ? () -> true : allMatchOffset(consumer::isAcked), observer::onCompleted, observer::onCancelled);
    return handle;
}