55 |
|
* Executor} or by default the {@link ForkJoinPool#commonPool()}, of a |
56 |
|
* function or action that will result in the completion of a new |
57 |
|
* CompletableFuture. To simplify monitoring, debugging, and tracking, |
58 |
< |
* all generated asynchronous tasks are instances of the tagging |
58 |
> |
* all generated asynchronous tasks are instances of the marker |
59 |
|
* interface {@link AsynchronousCompletionTask}. |
60 |
|
* |
61 |
|
* <p><em>jsr166e note: During transition, this class |
380 |
|
/* ------------- Async tasks -------------- */ |
381 |
|
|
382 |
|
/** |
383 |
< |
* A tagging interface identifying asynchronous tasks produced by |
383 |
> |
* A marker interface identifying asynchronous tasks produced by |
384 |
|
* {@code async} methods. This may be useful for monitoring, |
385 |
|
* debugging, and tracking asynchronous activities. |
386 |
|
*/ |
1053 |
|
(r = a.result) != null && |
1054 |
|
compareAndSet(0, 1)) { |
1055 |
|
if ((r instanceof AltResult) && |
1056 |
< |
(ex = ((AltResult)r).ex) != null) { |
1056 |
> |
(ex = ((AltResult)r).ex) != null) { |
1057 |
|
try { |
1058 |
|
t = fn.apply(ex); |
1059 |
|
} catch (Throwable rex) { |
1319 |
|
Object r; Throwable ex, cause; |
1320 |
|
if ((r = result) == null && (r = waitingGet(true)) == null) |
1321 |
|
throw new InterruptedException(); |
1322 |
< |
if (r instanceof AltResult) { |
1323 |
< |
if ((ex = ((AltResult)r).ex) != null) { |
1324 |
< |
if (ex instanceof CancellationException) |
1325 |
< |
throw (CancellationException)ex; |
1326 |
< |
if ((ex instanceof CompletionException) && |
1327 |
< |
(cause = ex.getCause()) != null) |
1328 |
< |
ex = cause; |
1329 |
< |
throw new ExecutionException(ex); |
1330 |
< |
} |
1331 |
< |
return null; |
1322 |
> |
if (!(r instanceof AltResult)) { |
1323 |
> |
@SuppressWarnings("unchecked") T tr = (T) r; |
1324 |
> |
return tr; |
1325 |
|
} |
1326 |
< |
@SuppressWarnings("unchecked") T tr = (T) r; |
1327 |
< |
return tr; |
1326 |
> |
if ((ex = ((AltResult)r).ex) == null) |
1327 |
> |
return null; |
1328 |
> |
if (ex instanceof CancellationException) |
1329 |
> |
throw (CancellationException)ex; |
1330 |
> |
if ((ex instanceof CompletionException) && |
1331 |
> |
(cause = ex.getCause()) != null) |
1332 |
> |
ex = cause; |
1333 |
> |
throw new ExecutionException(ex); |
1334 |
|
} |
1335 |
|
|
1336 |
|
/** |
1355 |
|
throw new InterruptedException(); |
1356 |
|
if ((r = result) == null) |
1357 |
|
r = timedAwaitDone(nanos); |
1358 |
< |
if (r instanceof AltResult) { |
1359 |
< |
if ((ex = ((AltResult)r).ex) != null) { |
1360 |
< |
if (ex instanceof CancellationException) |
1362 |
< |
throw (CancellationException)ex; |
1363 |
< |
if ((ex instanceof CompletionException) && |
1364 |
< |
(cause = ex.getCause()) != null) |
1365 |
< |
ex = cause; |
1366 |
< |
throw new ExecutionException(ex); |
1367 |
< |
} |
1368 |
< |
return null; |
1358 |
> |
if (!(r instanceof AltResult)) { |
1359 |
> |
@SuppressWarnings("unchecked") T tr = (T) r; |
1360 |
> |
return tr; |
1361 |
|
} |
1362 |
< |
@SuppressWarnings("unchecked") T tr = (T) r; |
1363 |
< |
return tr; |
1362 |
> |
if ((ex = ((AltResult)r).ex) == null) |
1363 |
> |
return null; |
1364 |
> |
if (ex instanceof CancellationException) |
1365 |
> |
throw (CancellationException)ex; |
1366 |
> |
if ((ex instanceof CompletionException) && |
1367 |
> |
(cause = ex.getCause()) != null) |
1368 |
> |
ex = cause; |
1369 |
> |
throw new ExecutionException(ex); |
1370 |
|
} |
1371 |
|
|
1372 |
|
/** |
1387 |
|
Object r; Throwable ex; |
1388 |
|
if ((r = result) == null) |
1389 |
|
r = waitingGet(false); |
1390 |
< |
if (r instanceof AltResult) { |
1391 |
< |
if ((ex = ((AltResult)r).ex) != null) { |
1392 |
< |
if (ex instanceof CancellationException) |
1395 |
< |
throw (CancellationException)ex; |
1396 |
< |
if (ex instanceof CompletionException) |
1397 |
< |
throw (CompletionException)ex; |
1398 |
< |
throw new CompletionException(ex); |
1399 |
< |
} |
1400 |
< |
return null; |
1390 |
> |
if (!(r instanceof AltResult)) { |
1391 |
> |
@SuppressWarnings("unchecked") T tr = (T) r; |
1392 |
> |
return tr; |
1393 |
|
} |
1394 |
< |
@SuppressWarnings("unchecked") T tr = (T) r; |
1395 |
< |
return tr; |
1394 |
> |
if ((ex = ((AltResult)r).ex) == null) |
1395 |
> |
return null; |
1396 |
> |
if (ex instanceof CancellationException) |
1397 |
> |
throw (CancellationException)ex; |
1398 |
> |
if (ex instanceof CompletionException) |
1399 |
> |
throw (CompletionException)ex; |
1400 |
> |
throw new CompletionException(ex); |
1401 |
|
} |
1402 |
|
|
1403 |
|
/** |
1414 |
|
Object r; Throwable ex; |
1415 |
|
if ((r = result) == null) |
1416 |
|
return valueIfAbsent; |
1417 |
< |
if (r instanceof AltResult) { |
1418 |
< |
if ((ex = ((AltResult)r).ex) != null) { |
1419 |
< |
if (ex instanceof CancellationException) |
1423 |
< |
throw (CancellationException)ex; |
1424 |
< |
if (ex instanceof CompletionException) |
1425 |
< |
throw (CompletionException)ex; |
1426 |
< |
throw new CompletionException(ex); |
1427 |
< |
} |
1428 |
< |
return null; |
1417 |
> |
if (!(r instanceof AltResult)) { |
1418 |
> |
@SuppressWarnings("unchecked") T tr = (T) r; |
1419 |
> |
return tr; |
1420 |
|
} |
1421 |
< |
@SuppressWarnings("unchecked") T tr = (T) r; |
1422 |
< |
return tr; |
1421 |
> |
if ((ex = ((AltResult)r).ex) == null) |
1422 |
> |
return null; |
1423 |
> |
if (ex instanceof CancellationException) |
1424 |
> |
throw (CancellationException)ex; |
1425 |
> |
if (ex instanceof CompletionException) |
1426 |
> |
throw (CompletionException)ex; |
1427 |
> |
throw new CompletionException(ex); |
1428 |
|
} |
1429 |
|
|
1430 |
|
/** |
1788 |
|
* @param executor the executor to use for asynchronous execution |
1789 |
|
* @return the new CompletableFuture |
1790 |
|
*/ |
1795 |
– |
|
1791 |
|
public <U,V> CompletableFuture<V> thenCombineAsync(CompletableFuture<? extends U> other, |
1792 |
|
BiFun<? super T,? super U,? extends V> fn, |
1793 |
|
Executor executor) { |
2526 |
|
if (r != null && (d == null || d.compareAndSet(0, 1))) { |
2527 |
|
T t = null; Throwable ex, dx = null; |
2528 |
|
if (r instanceof AltResult) { |
2529 |
< |
if ((ex = ((AltResult)r).ex) != null) { |
2529 |
> |
if ((ex = ((AltResult)r).ex) != null) { |
2530 |
|
try { |
2531 |
|
t = fn.apply(ex); |
2532 |
|
} catch (Throwable rex) { |
2554 |
|
* |
2555 |
|
* @param fn the function to use to compute the value of the |
2556 |
|
* returned CompletableFuture |
2562 |
– |
|
2557 |
|
* @return the new CompletableFuture |
2558 |
|
*/ |
2559 |
|
public <U> CompletableFuture<U> handle(BiFun<? super T, Throwable, ? extends U> fn) { |
2627 |
|
*/ |
2628 |
|
public boolean isCancelled() { |
2629 |
|
Object r; |
2630 |
< |
return ((r = result) != null && |
2631 |
< |
(r instanceof AltResult) && |
2638 |
< |
(((AltResult)r).ex instanceof CancellationException)); |
2630 |
> |
return ((r = result) instanceof AltResult) && |
2631 |
> |
(((AltResult)r).ex instanceof CancellationException); |
2632 |
|
} |
2633 |
|
|
2634 |
|
/** |