Example #1
0
  /**
   * Slice this buffer at the given positions. Useful for extracting multiple segments of data from
   * a buffer when the exact indices of that data is already known.
   *
   * @param positions The start and end positions of the slices.
   * @return A list of {@link View Views} pointing to the slices.
   */
  public List<View> slice(int... positions) {
    Assert.notNull(positions, "Positions cannot be null.");
    if (positions.length == 0) {
      return Collections.emptyList();
    }

    snapshot();

    List<View> views = new ArrayList<View>();
    int len = positions.length;
    for (int i = 0; i < len; i++) {
      int start = positions[i];
      int end = (i + 1 < len ? positions[++i] : this.limit);
      views.add(createView(start, end));
      reset();
    }

    return views;
  }
Example #2
0
  @Test
  public void indexBugTest() throws InterruptedException {
    int numOfItems = 20;

    // this line causes an java.lang.ArrayIndexOutOfBoundsException unless there is a break point in
    // ZipAction
    // .createSubscriber()
    RingBufferProcessor<String> ring = RingBufferProcessor.create("test", 1024);

    // this line works
    //        Broadcaster<String> ring = Broadcaster.create(Environment.get());

    Stream<String> stream = Streams.wrap(ring.start());

    Stream<String> stream2 =
        stream
            .zipWith(
                Streams.createWith(
                    (d, s) -> {
                      for (int i = 0; i < d; i++) {
                        s.onNext(System.currentTimeMillis());
                      }
                    }),
                t -> String.format("%s : %s", t.getT2(), t.getT1()))
            .observeError(
                Throwable.class,
                (o, t) -> {
                  System.err.println(t.toString());
                  t.printStackTrace();
                });

    Promise<List<String>> p = stream2.observe(System.out::println).buffer(numOfItems).next();

    for (int curr = 0; curr < numOfItems; curr++) {
      if (curr % 5 == 0 && curr % 3 == 0) ring.onNext("FizBuz");
      else if (curr % 3 == 0) ring.onNext("Fiz");
      else if (curr % 5 == 0) ring.onNext("Buz");
      else ring.onNext(String.valueOf(curr));
    }

    Assert.isTrue(p.await(5, TimeUnit.SECONDS) != null, "Has not returned list");
  }
Example #3
0
 /**
  * Creates a new {@code NotifyConsumer} that will notify the given {@code observable} using the
  * given {@code notifyKey}. If {@code notifyKey} is {@code null}, {@code observable} will be
  * notified without a key.
  *
  * @param notifyKey The notification key, may be {@code null}
  * @param observable The observable to notify. May not be {@code null}
  */
 public NotifyConsumer(Object notifyKey, Bus<?, ?> observable) {
   Assert.notNull(observable, "Observable cannot be null.");
   this.notifyKey = notifyKey;
   this.observable = observable;
   this.wrapEvent = EventBus.class.isAssignableFrom(observable.getClass());
 }