artemlivshits commented on code in PR #12901:
URL: https://github.com/apache/kafka/pull/12901#discussion_r1069963790
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core/src/main/scala/kafka/coordinator/group/GroupCoordinatorAdapter.scala:
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@@ -397,19 +389,24 @@ class GroupCoordinatorAdapter(
request: TxnOffsetCommitRequestData,
bufferSupplier: BufferSupplier
): CompletableFuture[TxnOffsetCommitResponseData] = {
+ val currentTimeMs = time.milliseconds
val future = new CompletableFuture[TxnOffsetCommitResponseData]()
def callback(results: Map[TopicPartition, Errors]): Unit = {
val response = new TxnOffsetCommitResponseData()
- val byTopics = new util.HashMap[String,
TxnOffsetCommitResponseData.TxnOffsetCommitResponseTopic]()
+ val byTopics = new mutable.HashMap[String,
TxnOffsetCommitResponseData.TxnOffsetCommitResponseTopic]()
results.forKeyValue { (tp, error) =>
- var topic = byTopics.get(tp.topic)
- if (topic == null) {
- topic = new
TxnOffsetCommitResponseData.TxnOffsetCommitResponseTopic().setName(tp.topic)
- byTopics.put(tp.topic, topic)
- response.topics.add(topic)
+ val topic = byTopics.get(tp.topic) match {
Review Comment:
The downside is double-lookup (one for get and another for insert).
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