Examples with FutureStream cyclops.futurestream.FutureStream used on opensource projects

Example 31 with FutureStream

use of cyclops.futurestream.FutureStream in project cyclops by aol.

the class SimpleReactStream method zip.

/**
 * Zip two Streams, zipping against the underlying futures of both Streams
 * Placeholders (Futures) will be populated immediately in the new zipped Stream and results
 * will be populated asyncrhonously
 *
 * @param other  Another FutureStream to zip Futures with
 * @return New Sequence of CompletableFutures
 */
default <R> SimpleReactStream<Tuple2<U, R>> zip(final SimpleReactStream<R> other) {
    final ReactiveSeq seq = ReactiveSeq.fromStream(getLastActive().stream()).zip(ReactiveSeq.fromStream(other.getLastActive().stream()));
    final ReactiveSeq<Tuple2<CompletableFuture<U>, CompletableFuture<R>>> withType = seq;
    final SimpleReactStream futureStream = fromStreamOfFutures((Stream) withType.map(t -> CompletableFuture.allOf(t._1(), t._2()).thenApply(v -> Tuple.tuple(t._1().join(), t._2().join()))));
    return futureStream;
}