yazgoo commented on code in PR #16486:
URL: https://github.com/apache/kafka/pull/16486#discussion_r1672249822
##########
connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/IncrementalCooperativeAssignor.java:
##########
@@ -793,6 +796,46 @@ protected void assignConnectors(List<WorkerLoad>
workerAssignment, Collection<St
}
}
+ static class BalancedIterator<E> implements Iterator<E> {
+
+ private final Map<String, Iterator<E>> grouped;
+ private final List<String> keys;
+
+ private int k;
+
+ public BalancedIterator(Collection<E> collection, Function<E, String>
allocationGrouper) {
+ this.k = 0;
+ this.grouped = collection.stream().collect(Collectors.groupingBy(
+ allocationGrouper,
+ Collectors.collectingAndThen(
+ Collectors.toList(),
+ List::iterator
+ )
+ ));
+ this.keys = collection.stream()
+ .map(allocationGrouper)
+ .distinct()
+ .collect(Collectors.toList());
Review Comment:
@gharris1727 does this look better to you ?
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