@Test
  public void onCompleteSuccessWithUnsubscribeFailure() {
    Subscriber<String> o = OBSERVER_SUCCESS();
    try {
      o.add(
          Subscriptions.create(
              new Action0() {

                @Override
                public void call() {
                  // break contract by throwing exception
                  throw new SafeObserverTestException("failure from unsubscribe");
                }
              }));
      new SafeSubscriber<String>(o).onCompleted();
      fail("expects exception to be thrown");
    } catch (Exception e) {
      e.printStackTrace();

      assertTrue(o.isUnsubscribed());

      assertTrue(e instanceof SafeObserverTestException);
      assertEquals("failure from unsubscribe", e.getMessage());
      // expected since onError fails so SafeObserver can't help
    }
  }
    @Override
    public void request(long n) {
      if (once) {
        return;
      }
      if (n < 0L) {
        throw new IllegalStateException("n >= required but it was " + n);
      }
      if (n != 0L) {
        once = true;
        Subscriber<? super T> a = actual;
        if (a.isUnsubscribed()) {
          return;
        }
        T v = value;
        try {
          a.onNext(v);
        } catch (Throwable e) {
          Exceptions.throwOrReport(e, a, v);
          return;
        }

        if (a.isUnsubscribed()) {
          return;
        }
        a.onCompleted();
      }
    }
Ejemplo n.º 3
0
 @Override
 public void call(final Subscriber<? super T> s) {
   if (state.casFirst(0, 1)) {
     final NotificationLite<T> nl = NotificationLite.instance();
     // drain queued notifications before subscription
     // we do this here before PassThruObserver so the consuming thread can do this before
     // putting itself in the line of the producer
     BufferedObserver<? super T> buffered = (BufferedObserver<? super T>) state.observerRef;
     Object o;
     while ((o = buffered.buffer.poll()) != null) {
       nl.accept(s, o);
     }
     // register real observer for pass-thru ... and drain any further events received on first
     // notification
     state.setObserverRef(new PassThruObserver<T>(s, buffered.buffer, state));
     s.add(
         Subscriptions.create(
             new Action0() {
               @Override
               public void call() {
                 state.setObserverRef(Subscribers.empty());
               }
             }));
   } else {
     s.onError(new IllegalStateException("Only one subscriber allowed!"));
   }
 }
Ejemplo n.º 4
0
 @Override
 public void unsubscribe() {
   errorSubscriber.unsubscribe();
   stateSubscriber.unsubscribe();
   indexSubscriber.unsubscribe();
   commandSubscriber.unsubscribe();
 }
Ejemplo n.º 5
0
  @Test
  public void testAlreadyUnsubscribedInterleavesWithClient() {
    ReplaySubject<Integer> source = ReplaySubject.create();

    Subscriber<Integer> done = Subscribers.empty();
    done.unsubscribe();

    @SuppressWarnings("unchecked")
    Observer<Integer> o = mock(Observer.class);
    InOrder inOrder = inOrder(o);

    Observable<Integer> result = source.publish().refCount();

    result.subscribe(o);

    source.onNext(1);

    result.subscribe(done);

    source.onNext(2);
    source.onCompleted();

    inOrder.verify(o).onNext(1);
    inOrder.verify(o).onNext(2);
    inOrder.verify(o).onCompleted();
    verify(o, never()).onError(any(Throwable.class));
  }
  @Test
  public void onErrorSuccessWithUnsubscribeFailure() {
    AtomicReference<Throwable> onError = new AtomicReference<Throwable>();
    Subscriber<String> o = OBSERVER_SUCCESS(onError);
    try {
      o.add(
          Subscriptions.create(
              new Action0() {

                @Override
                public void call() {
                  // break contract by throwing exception
                  throw new SafeObserverTestException("failure from unsubscribe");
                }
              }));
      new SafeSubscriber<String>(o).onError(new SafeObserverTestException("failed"));
      fail("we expect the unsubscribe failure to cause an exception to be thrown");
    } catch (Exception e) {
      e.printStackTrace();

      assertTrue(o.isUnsubscribed());

      // we still expect onError to have received something before unsubscribe blew up
      assertNotNull(onError.get());
      assertTrue(onError.get() instanceof SafeObserverTestException);
      assertEquals("failed", onError.get().getMessage());

      // now assert the exception that was thrown
      assertTrue(e instanceof SafeObserverTestException);
      assertEquals("failure from unsubscribe", e.getMessage());
    }
  }
Ejemplo n.º 7
0
  @Test
  public void testUnsubscribeAfterTake() {
    final Subscription s = mock(Subscription.class);
    TestObservableFunc f = new TestObservableFunc("one", "two", "three");
    Observable<String> w = Observable.create(f);

    @SuppressWarnings("unchecked")
    Observer<String> observer = mock(Observer.class);

    Subscriber<String> subscriber = Subscribers.from(observer);
    subscriber.add(s);

    Observable<String> take = w.lift(new OperatorTake<String>(1));
    take.subscribe(subscriber);

    // wait for the Observable to complete
    try {
      f.t.join();
    } catch (Throwable e) {
      e.printStackTrace();
      fail(e.getMessage());
    }

    System.out.println("TestObservable thread finished");
    verify(observer, times(1)).onNext("one");
    verify(observer, never()).onNext("two");
    verify(observer, never()).onNext("three");
    verify(observer, times(1)).onCompleted();
    verify(s, times(1)).unsubscribe();
    verifyNoMoreInteractions(observer);
  }
 @Override
 public void run() {
   System.out.println("Doing something expensive");
   reactiveXBoilerplate.sleep(3000);
   subscriber.onNext("Expensive result");
   subscriber.onCompleted();
 }
    @Override
    public void onError(Throwable e) {
      long p = produced;
      if (p != 0L) {
        arbiter.produced(p);
      }

      Observable<T> o;

      try {
        o = onError.call(e);
      } catch (Throwable ex) {
        Exceptions.throwIfFatal(ex);

        actual.onError(new CompositeException(e, ex));

        return;
      }

      if (o == null) {
        actual.onError(
            new NullPointerException("The onError function returned a null Observable."));
      } else {
        o.unsafeSubscribe(new ResumeSubscriber<T>(actual, arbiter));
      }
    }
Ejemplo n.º 10
0
 @Override
 public void call(Subscriber<? super Long> op) {
   long l = 1;
   while (!op.isUnsubscribed()) {
     op.onNext(l++);
   }
   op.onCompleted();
 }
Ejemplo n.º 11
0
  @Override
  public Subscriber<? super T> call(final Subscriber<? super Map<K, V>> subscriber) {

    Map<K, V> localMap;

    try {
      localMap = mapFactory.call();
    } catch (Throwable ex) {
      Exceptions.throwIfFatal(ex);
      subscriber.onError(ex);
      Subscriber<? super T> parent = Subscribers.empty();
      parent.unsubscribe();
      return parent;
    }

    final Map<K, V> fLocalMap = localMap;

    return new Subscriber<T>(subscriber) {

      private Map<K, V> map = fLocalMap;

      @Override
      public void onStart() {
        request(Long.MAX_VALUE);
      }

      @Override
      public void onNext(T v) {
        K key;
        V value;

        try {
          key = keySelector.call(v);
          value = valueSelector.call(v);
        } catch (Throwable ex) {
          Exceptions.throwIfFatal(ex);
          subscriber.onError(ex);
          return;
        }

        map.put(key, value);
      }

      @Override
      public void onError(Throwable e) {
        map = null;
        subscriber.onError(e);
      }

      @Override
      public void onCompleted() {
        Map<K, V> map0 = map;
        map = null;
        subscriber.onNext(map0);
        subscriber.onCompleted();
      }
    };
  }
 @Override
 public void onViewDetachedFromWindow(View v) {
   if (!isUnsubscribed()) {
     Subscriber<? super View> originalSubscriber = subscriber;
     unsubscribe();
     originalSubscriber.onNext(v);
     originalSubscriber.onCompleted();
   }
 }
Ejemplo n.º 13
0
  private void onWifiEnabled() {
    Log.d("WifiService", "The Wifi has been enabled.");
    unregisterReceiver(wifiStateChangedReceiver);
    wifiStateChangedReceiver = null;

    while (!wifiStateChangedSubscribers.isEmpty()) {
      Subscriber subscriber = wifiStateChangedSubscribers.poll();
      subscriber.onCompleted();
    }
  }
Ejemplo n.º 14
0
  @Test
  public void testRequestFromDecoupledOperatorThatRequestsN() {
    Subscriber<String> s = new TestSubscriber<String>();
    final AtomicLong innerR = new AtomicLong();
    Operator<String, String> o =
        new Operator<String, String>() {

          @Override
          public Subscriber<? super String> call(Subscriber<? super String> child) {
            // we want to decouple the chain so set our own Producer on the child instead of it
            // coming from the parent
            child.setProducer(
                new Producer() {

                  @Override
                  public void request(long n) {
                    innerR.set(n);
                  }
                });

            Subscriber<String> as =
                new Subscriber<String>() {

                  @Override
                  public void onCompleted() {}

                  @Override
                  public void onError(Throwable e) {}

                  @Override
                  public void onNext(String t) {}
                };
            // we request 99 up to the parent
            as.request(99);
            return as;
          }
        };
    s.request(10);
    Subscriber<? super String> ns = o.call(s);

    final AtomicLong r = new AtomicLong();
    // set set the producer at the top of the chain (ns) and it should flow through the operator to
    // the (s) subscriber
    // and then it should request up with the value set on the final Subscriber (s)
    ns.setProducer(
        new Producer() {

          @Override
          public void request(long n) {
            r.set(n);
          }
        });
    assertEquals(99, r.get());
    assertEquals(10, innerR.get());
  }
Ejemplo n.º 15
0
  @Override
  public Subscriber<? super Observable<? extends T>> call(Subscriber<? super T> child) {
    final SerializedSubscriber<T> s = new SerializedSubscriber<T>(child);
    final CompositeSubscription csub = new CompositeSubscription();
    child.add(csub);

    SourceSubscriber<T> ssub = new SourceSubscriber<T>(maxConcurrency, s, csub);
    child.setProducer(new MergeMaxConcurrentProducer<T>(ssub));

    return ssub;
  }
Ejemplo n.º 16
0
 @Override
 public void onPreviewFrame(byte[] data) {
   if (subscriber != null && !subscriber.isUnsubscribed() && rxCamera.isOpenCamera()) {
     if (data == null || data.length == 0) {
       subscriber.onError(new CameraDataNullException());
     }
     RxCameraData rxCameraData = new RxCameraData();
     rxCameraData.cameraData = data;
     rxCameraData.rotateMatrix = rxCamera.getRotateMatrix();
     subscriber.onNext(rxCameraData);
   }
 }
Ejemplo n.º 17
0
  /** Should request -1 for infinite */
  @Test
  public void testRequestFromFinalSubscribeWithoutRequestValue() {
    Subscriber<String> s = new TestSubscriber<String>();
    final AtomicLong r = new AtomicLong();
    s.setProducer(
        new Producer() {

          @Override
          public void request(long n) {
            r.set(n);
          }
        });
    assertEquals(Long.MAX_VALUE, r.get());
  }
Ejemplo n.º 18
0
  @Override
  public Subscriber<? super T> call(final Subscriber<? super T> child) {
    final ParentSubscriber parent = new ParentSubscriber(child);
    child.add(parent); // don't unsubscribe downstream
    child.setProducer(
        new Producer() {
          @Override
          public void request(long n) {
            parent.downstreamRequest(n);
          }
        });

    return parent;
  }
 private void triggerServiceActive()
 {
   try
   {
     Iterator localIterator = this.networkSubscribers.iterator();
     while (localIterator.hasNext())
     {
       Subscriber localSubscriber = (Subscriber)localIterator.next();
       localSubscriber.onNext(this.mNetworkManager);
       localSubscriber.onCompleted();
       localIterator.remove();
     }
   }
   finally {}
 }
Ejemplo n.º 20
0
  @Override
  public void call(final Subscriber<? super Bitmap> subscriber) {

    Preconditions.checkUiThread();

    final Target target =
        new TargetAdapter() {
          @Override
          public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
            if (!subscriber.isUnsubscribed()) subscriber.onNext(bitmap);
          }

          @Override
          public void onBitmapFailed(Drawable errorDrawable) {
            if (!subscriber.isUnsubscribed()) subscriber.onError(new PicassoError(errorDrawable));
          }
        };

    Picasso.with(context)
        .load(resId)
        .noFade()
        .memoryPolicy(NO_CACHE, NO_STORE)
        .config(Bitmap.Config.ARGB_8888)
        .transform(new PicassoTransformation(context, radius))
        .into(target);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            Picasso.with(context).cancelRequest(target);
            PicassoBlurOnSubscribe.this.context = null;
          }
        });
  }
  @Override
  public void call(final Subscriber<? super Void> subscriber) {
    checkUiThread();

    SearchEditText.OnKeyboardDismissListener listener =
        new SearchEditText.OnKeyboardDismissListener() {
          @Override
          public void onKeyboardDismiss() {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(null);
            }
          }
        };

    view.setOnKeyboardDismissListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            // TODO: set to null once http://b.android.com/187101 is released.
            view.setOnKeyboardDismissListener(
                new SearchEditText.OnKeyboardDismissListener() {
                  @Override
                  public void onKeyboardDismiss() {}
                });
          }
        });
  }
Ejemplo n.º 22
0
  @Override
  public void call(final Subscriber<? super MotionEvent> subscriber) {
    checkUiThread();

    View.OnTouchListener listener =
        new View.OnTouchListener() {
          @Override
          public boolean onTouch(View v, @NonNull MotionEvent event) {
            if (handled.call(event)) {
              if (!subscriber.isUnsubscribed()) {
                subscriber.onNext(event);
              }
              return true;
            }
            return false;
          }
        };
    view.setOnTouchListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            view.setOnTouchListener(null);
          }
        });
  }
  @Override
  public void call(final Subscriber<? super RecyclerViewChildAttachStateChangeEvent> subscriber) {
    checkUiThread();

    final OnChildAttachStateChangeListener listener =
        new OnChildAttachStateChangeListener() {
          @Override
          public void onChildViewAttachedToWindow(View childView) {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(RecyclerViewChildAttachEvent.create(recyclerView, childView));
            }
          }

          @Override
          public void onChildViewDetachedFromWindow(View childView) {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(RecyclerViewChildDetachEvent.create(recyclerView, childView));
            }
          }
        };

    recyclerView.addOnChildAttachStateChangeListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            recyclerView.removeOnChildAttachStateChangeListener(listener);
          }
        });
  }
Ejemplo n.º 24
0
 /**
  * @warn javadoc description missing
  * @warn param producer not described
  * @param producer
  */
 public void setProducer(Producer producer) {
   long toRequest;
   boolean setProducer = false;
   synchronized (this) {
     toRequest = requested;
     p = producer;
     if (op != null) {
       // middle operator ... we pass thru unless a request has been made
       if (toRequest == Long.MIN_VALUE) {
         // we pass-thru to the next producer as nothing has been requested
         setProducer = true;
       }
     }
   }
   // do after releasing lock
   if (setProducer) {
     op.setProducer(p);
   } else {
     // we execute the request with whatever has been requested (or Long.MAX_VALUE)
     if (toRequest == Long.MIN_VALUE) {
       p.request(Long.MAX_VALUE);
     } else {
       p.request(toRequest);
     }
   }
 }
Ejemplo n.º 25
0
  @Override
  public void call(final Subscriber<? super FileEvent> subscriber) {
    final FileObserver observer =
        new FileObserver(pathToWatch) {
          @Override
          public void onEvent(int event, String file) {
            if (subscriber.isUnsubscribed()) {
              return;
            }

            FileEvent fileEvent = FileEvent.create(event, file);
            subscriber.onNext(fileEvent);

            if (fileEvent.isDeleteSelf()) {
              subscriber.onCompleted();
            }
          }
        };
    observer.startWatching(); // START OBSERVING

    subscriber.add(
        Subscriptions.create(
            new Action0() {
              @Override
              public void call() {
                observer.stopWatching();
              }
            }));
  }
  @Override
  public void call(final Subscriber<? super Void> subscriber) {
    verifyMainThread();

    final ViewTreeObserver.OnPreDrawListener listener =
        new ViewTreeObserver.OnPreDrawListener() {
          @Override
          public boolean onPreDraw() {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(null);
              return proceedDrawingPass.call();
            }
            return true;
          }
        };

    view.getViewTreeObserver().addOnPreDrawListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            view.getViewTreeObserver().removeOnPreDrawListener(listener);
          }
        });
  }
  @Override
  public void call(final Subscriber<? super MenuItem> subscriber) {
    verifyMainThread();

    PopupMenu.OnMenuItemClickListener listener =
        new PopupMenu.OnMenuItemClickListener() {
          @Override
          public boolean onMenuItemClick(MenuItem item) {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(item);
            }
            return true;
          }
        };

    view.setOnMenuItemClickListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            view.setOnMenuItemClickListener(null);
          }
        });
  }
Ejemplo n.º 28
0
    SwitchSubscriber(Subscriber<? super T> child) {
      serializedChild = new SerializedSubscriber<T>(child);
      arbiter = new ProducerArbiter();
      ssub = new SerialSubscription();
      child.add(ssub);
      child.setProducer(
          new Producer() {

            @Override
            public void request(long n) {
              if (n > 0) {
                arbiter.request(n);
              }
            }
          });
    }
  @Override
  public void call(final Subscriber<? super View> subscriber) {
    verifyMainThread();

    SwipeDismissBehavior.OnDismissListener listener =
        new SwipeDismissBehavior.OnDismissListener() {
          @Override
          public void onDismiss(View view) {
            if (!subscriber.isUnsubscribed()) {
              subscriber.onNext(view);
            }
          }

          @Override
          public void onDragStateChanged(int i) {}
        };

    if (!(view.getLayoutParams() instanceof LayoutParams)) {
      throw new IllegalArgumentException("The view is not in a Coordinator Layout.");
    }
    LayoutParams params = (LayoutParams) view.getLayoutParams();
    final SwipeDismissBehavior behavior = (SwipeDismissBehavior) params.getBehavior();
    if (behavior == null) {
      throw new IllegalStateException("There's no behavior set on this view.");
    }
    behavior.setListener(listener);

    subscriber.add(
        new MainThreadSubscription() {
          @Override
          protected void onUnsubscribe() {
            behavior.setListener(null);
          }
        });
  }
Ejemplo n.º 30
0
  @Override
  public void onNext(T t) {
    synchronized (this) {
      if (emitting) {
        List<T> q = queue;
        if (q == null) {
          q = new ArrayList<T>(4);
          queue = q;
        }
        q.add(t);
        return;
      }
    }
    boolean skipFinal = false;
    try {
      child.onNext(t);

      long r = requested;
      if (r != Long.MAX_VALUE) {
        requested = r - 1;
      }

      emitLoop();
      skipFinal = true;
    } finally {
      if (!skipFinal) {
        synchronized (this) {
          emitting = false;
        }
      }
    }
  }