How to use

isCancelled

method

in

org.apache.ignite.internal.util.future.GridCompoundFuture

/**
 * Adds a future to this compound future.
 *
 * @param fut Future to add.
 */
public final void add(IgniteInternalFuture<T> fut) {
  assert fut != null;
  synchronized (this) {
    if (futs == null)
      futs = fut;
    else if (futs instanceof IgniteInternalFuture) {
      Collection<IgniteInternalFuture> futs0 = new ArrayList<>(4);
      futs0.add((IgniteInternalFuture)futs);
      futs0.add(fut);
      futs = futs0;
    }
    else
      ((Collection<IgniteInternalFuture>)futs).add(fut);
  }
  fut.listen(this);
  if (isCancelled()) {
    try {
      fut.cancel();
    }
    catch (IgniteCheckedException e) {
      onDone(e);
    }
  }
}

  /** {@inheritDoc} */
  @Override public String toString() {
    return S.toString(GridCompoundFuture.class, this,
      "done", isDone(),
      "cancelled", isCancelled(),
      "err", error(),
      "futs",
      F.viewReadOnly(futures(), new C1<IgniteInternalFuture<T>, String>() {
        @Override public String apply(IgniteInternalFuture<T> f) {
          return Boolean.toString(f.isDone());
        }
      })
    );
  }
}

/**
 * @throws Exception If failed.
 */
@Test
public void testCompleteOnReducer() throws Exception {
  GridCompoundFuture<Boolean, Boolean> fut = new GridCompoundFuture<>(CU.boolReducer());
  List<GridFutureAdapter<Boolean>> futs = new ArrayList<>(5);
  for (int i = 0; i < 5; i++) {
    GridFutureAdapter<Boolean> part = new GridFutureAdapter<>();
    fut.add(part);
    futs.add(part);
  }
  fut.markInitialized();
  assertFalse(fut.isDone());
  assertFalse(fut.isCancelled());
  for (int i = 0; i < 3; i++) {
    futs.get(i).onDone(true);
    assertFalse(fut.isDone());
  }
  futs.get(3).onDone(false);
  assertTrue(fut.isDone());
}

/**
 * @throws Exception If failed.
 */
@Test
public void testCompleteOnException() throws Exception {
  GridCompoundFuture<Boolean, Boolean> fut = new GridCompoundFuture<>(CU.boolReducer());
  List<GridFutureAdapter<Boolean>> futs = new ArrayList<>(5);
  for (int i = 0; i < 5; i++) {
    GridFutureAdapter<Boolean> part = new GridFutureAdapter<>();
    fut.add(part);
    futs.add(part);
  }
  fut.markInitialized();
  assertFalse(fut.isDone());
  assertFalse(fut.isCancelled());
  for (int i = 0; i < 3; i++) {
    futs.get(i).onDone(true);
    assertFalse(fut.isDone());
  }
  futs.get(3).onDone(new IgniteCheckedException("Test message"));
  assertTrue(fut.isDone());
}

/**
 * @throws Exception If failed.
 */
@Test
public void testMarkInitialized() throws Exception {
  GridCompoundFuture<Boolean, Boolean> fut = new GridCompoundFuture<>();
  for (int i = 0; i < 5; i++) {
    IgniteInternalFuture<Boolean> part = new GridFinishedFuture<>(true);
    fut.add(part);
  }
  assertFalse(fut.isDone());
  assertFalse(fut.isCancelled());
  fut.markInitialized();
  assertTrue(fut.isDone());
}

/**
 * Adds a future to this compound future.
 *
 * @param fut Future to add.
 */
@SuppressWarnings("unchecked")
public final void add(IgniteInternalFuture<T> fut) {
  assert fut != null;
  synchronized (this) {
    if (futs == null)
      futs = fut;
    else if (futs instanceof IgniteInternalFuture) {
      Collection<IgniteInternalFuture> futs0 = new ArrayList<>(4);
      futs0.add((IgniteInternalFuture)futs);
      futs0.add(fut);
      futs = futs0;
    }
    else
      ((Collection<IgniteInternalFuture>)futs).add(fut);
  }
  fut.listen(this);
  if (isCancelled()) {
    try {
      fut.cancel();
    }
    catch (IgniteCheckedException e) {
      onDone(e);
    }
  }
}

  /** {@inheritDoc} */
  @Override public String toString() {
    return S.toString(GridCompoundFuture.class, this,
      "done", isDone(),
      "cancelled", isCancelled(),
      "err", error(),
      "futs",
      F.viewReadOnly(futures(), new C1<IgniteInternalFuture<T>, String>() {
        @Override public String apply(IgniteInternalFuture<T> f) {
          return Boolean.toString(f.isDone());
        }
      })
    );
  }
}