dajac commented on code in PR #15462:
URL: https://github.com/apache/kafka/pull/15462#discussion_r1515976925
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupCoordinatorService.java:
##########
@@ -498,29 +497,17 @@ public CompletableFuture<ListGroupsResponseData>
listGroups(
);
}
- final Set<TopicPartition> existingPartitionSet = runtime.partitions();
-
- if (existingPartitionSet.isEmpty()) {
- return CompletableFuture.completedFuture(new
ListGroupsResponseData());
- }
-
- final
List<CompletableFuture<List<ListGroupsResponseData.ListedGroup>>> futures =
- new ArrayList<>();
-
- for (TopicPartition tp : existingPartitionSet) {
- futures.add(runtime.scheduleReadOperation(
- "list-groups",
- tp,
- (coordinator, lastCommittedOffset) ->
coordinator.listGroups(request.statesFilter(), request.typesFilter(),
lastCommittedOffset)
- ).exceptionally(exception -> {
- exception = Errors.maybeUnwrapException(exception);
- if (exception instanceof NotCoordinatorException) {
- return Collections.emptyList();
- } else {
- throw new CompletionException(exception);
- }
- }));
- }
+ final
List<CompletableFuture<List<ListGroupsResponseData.ListedGroup>>> futures =
runtime.scheduleReadAllOperation(
+ "list-groups",
+ (coordinator, lastCommittedOffset) ->
coordinator.listGroups(request.statesFilter(), request.typesFilter(),
lastCommittedOffset)
+ ).stream().map(future -> future.exceptionally(exception -> {
Review Comment:
I just pushed a commit with the `mapExceptionally` construct that I was
thinking about. Please let me know what you think.
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