void fastPath() {
      final Iterator<? extends T> a = iterator;
      final Subscriber<? super T> s = actual;

      for (; ; ) {

        if (cancelled) {
          return;
        }

        T t;

        try {
          t = a.next();
        } catch (Exception ex) {
          s.onError(ex);
          return;
        }

        if (cancelled) {
          return;
        }

        if (t == null) {
          s.onError(new NullPointerException("The iterator returned a null value"));
          return;
        }

        s.onNext(t);

        if (cancelled) {
          return;
        }

        boolean b;

        try {
          b = a.hasNext();
        } catch (Exception ex) {
          s.onError(ex);
          return;
        }

        if (cancelled) {
          return;
        }

        if (!b) {
          s.onComplete();
          return;
        }
      }
    }
Ejemplo n.º 2
0
 @Override
 public void onError(Throwable e) {
   boolean emit;
   synchronized (this) {
     if (emitting) {
       missedTerminal = e;
       emit = false;
     } else {
       emitting = true;
       emit = true;
     }
   }
   if (emit) {
     child.onError(e);
   } else {
     hasError = true;
   }
 }
 @Override
 public void subscribe(Subscriber<? super String> observer) {
   observer.onSubscribe(EmptySubscription.INSTANCE);
   boolean errorThrown = false;
   for (String s : valuesToReturn) {
     if (s == null) {
       System.out.println("throwing exception");
       observer.onError(new NullPointerException());
       errorThrown = true;
       // purposefully not returning here so it will continue calling onNext
       // so that we also test that we handle bad sequences like this
     } else {
       observer.onNext(s);
     }
   }
   if (!errorThrown) {
     observer.onComplete();
   }
 }
Ejemplo n.º 4
0
    @Override
    public void onError(Throwable e) {
      Object[] active;
      synchronized (subscribers) {
        active = subscribers.toArray();
        subscribers.clear();
      }

      try {
        s.onError(e);

        unsubscribe();
      } finally {
        for (Object o : active) {
          @SuppressWarnings("unchecked")
          MergeItemSubscriber a = (MergeItemSubscriber) o;
          a.release();
        }
      }
    }
Ejemplo n.º 5
0
  void emitLoop() {
    final Subscriber<? super T> c = child;

    outer:
    for (; ; ) {
      long localRequested;
      Producer localProducer;
      Object localTerminal;
      List<T> q;
      synchronized (this) {
        localRequested = missedRequested;
        localProducer = missedProducer;
        localTerminal = missedTerminal;
        q = queue;
        if (localRequested == 0L && localProducer == null && q == null && localTerminal == null) {
          emitting = false;
          return;
        }
        missedRequested = 0L;
        missedProducer = null;
        queue = null;
        missedTerminal = null;
      }
      boolean empty = q == null || q.isEmpty();
      if (localTerminal != null) {
        if (localTerminal != Boolean.TRUE) {
          c.onError((Throwable) localTerminal);
          return;
        } else if (empty) {
          c.onCompleted();
          return;
        }
      }
      long e = 0;
      if (q != null) {
        for (T v : q) {
          if (c.isUnsubscribed()) {
            return;
          } else if (hasError) {
            continue outer; // if an error has been set, shortcut the loop and act on it
          }
          try {
            c.onNext(v);
          } catch (Throwable ex) {
            Exceptions.throwOrReport(ex, c, v);
            return;
          }
        }
        e += q.size();
      }
      long r = requested;
      // if requested is max, we don't do any accounting
      if (r != Long.MAX_VALUE) {
        // if there were missing requested, add it up
        if (localRequested != 0L) {
          long u = r + localRequested;
          if (u < 0) {
            u = Long.MAX_VALUE;
          }
          r = u;
        }
        // if there were emissions and we don't run on max since the last check, subtract
        if (e != 0L && r != Long.MAX_VALUE) {
          long u = r - e;
          if (u < 0) {
            throw new IllegalStateException("More produced than requested");
          }
          r = u;
        }
        requested = r;
      }
      if (localProducer != null) {
        if (localProducer == NULL_PRODUCER) {
          currentProducer = null;
        } else {
          currentProducer = localProducer;
          if (r != 0L) {
            localProducer.request(r);
          }
        }
      } else {
        Producer p = currentProducer;
        if (p != null && localRequested != 0L) {
          p.request(localRequested);
        }
      }
    }
  }
    void slowPath(long n) {
      final Iterator<? extends T> a = iterator;
      final Subscriber<? super T> s = actual;

      long e = 0L;

      for (; ; ) {

        while (e != n) {
          T t;

          try {
            t = a.next();
          } catch (Throwable ex) {
            s.onError(ex);
            return;
          }

          if (cancelled) {
            return;
          }

          if (t == null) {
            s.onError(new NullPointerException("The iterator returned a null value"));
            return;
          }

          s.onNext(t);

          if (cancelled) {
            return;
          }

          boolean b;

          try {
            b = a.hasNext();
          } catch (Throwable ex) {
            s.onError(ex);
            return;
          }

          if (cancelled) {
            return;
          }

          if (!b) {
            s.onComplete();
            return;
          }

          e++;
        }

        n = requested;

        if (n == e) {
          n = REQUESTED.addAndGet(this, -e);
          if (n == 0L) {
            return;
          }
          e = 0L;
        }
      }
    }