Hi,
Executing this code
Source.range(1, 4)
.mapAsync(1, e -> CompletableFuture.supplyAsync(() -> {
System.out.println("Num "+e);
return e;
}))
.filter(any -> true)
.take(1)
.runWith(Sink.foreach(e -> { System.out.println("End "+e); }), mat);
Will print
Num 1
End 1
Num 2
I don't understand why the async call in mapAsync is executed for number 2
while the stream should be completed.
This work fine
Source.range(1, 4)
.mapAsync(1, e -> CompletableFuture.supplyAsync(() -> {
System.out.println("Num "+e);
return e;
}))
.take(1)
.runWith(Sink.foreach(e -> { System.out.println("End "+e); }), mat);
So it seems that the filter method pull next element even if the stream is
completed.
Any idea? Is there a way to avoid that ?
Thanks,
Alexandre.
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