Hey,
I'm currently trying to execute HTTP requests in batches and then do a
Sink.fold over the results. This does not seem to work. What instead
happens is that I get 5 (the number I've set max-connections to at the
moment) "callback success" log entries and then nothing other than
five "Cancelling
akka.stream.impl.MultiStreamOutputProcessor$SubstreamOutput" messages.
What do I need to tell akka-streams to continue with the requests?
Sample code below:
Future<ArrayList<UserObject>> foldedFuture =
Source.from(Lists.newArrayList(currentBatch.getQueue().stream().map((req) -> {
HttpRequest postRequest =
HttpRequest.POST(req.callback.url).withEntity(MediaTypes.APPLICATION_JSON.toContentType(),
...);
Tuple2<HttpRequest, UserObject> t2 = Pair.create(postRequest,
req).toScala();
return t2;
}).iterator()))
.via(poolClientFlow)
.runFold(new ArrayList<UserObject>(), (list, t2) -> {
if (t2._1().isFailure() || t2._1().get().status().isFailure()) {
log.error("error cause: " + t2._1().failed().get());
callbackErrorCounter.increment();
list.add(t2._2());
} else {
log.error("callback success");
callbackCompletedCounter.increment();
}
return list;
}, materializer);
Thanks.
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