Technoboy- commented on code in PR #15527:
URL: https://github.com/apache/pulsar/pull/15527#discussion_r873342728
##########
pulsar-common/src/main/java/org/apache/pulsar/common/util/FutureUtil.java:
##########
@@ -47,6 +50,18 @@ public static CompletableFuture<Void>
waitForAll(Collection<? extends Completabl
return CompletableFuture.allOf(futures.toArray(new
CompletableFuture[0]));
}
+ public static <T> CompletableFuture<List<T>>
waitForAll(Stream<CompletableFuture<List<T>>> futures) {
+ return futures.reduce(CompletableFuture.completedFuture(new
ArrayList<>()),
+ (pre, curr) -> pre.thenCompose(preV -> curr.thenApply(currV ->
{
+ preV.addAll(currV);
+ return preV;
+ })));
+ }
+
+ public static <T> CompletableFuture<List<T>>
waitForAll(List<CompletableFuture<List<T>>> futures) {
+ return waitForAll(futures.stream());
Review Comment:
And here.
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