sjhajharia commented on code in PR #18671:
URL: https://github.com/apache/kafka/pull/18671#discussion_r1931910325
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core/src/main/scala/kafka/server/KafkaApis.scala:
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@@ -3185,9 +3187,87 @@ class KafkaApis(val requestChannel: RequestChannel,
def handleDescribeShareGroupOffsetsRequest(request: RequestChannel.Request):
Unit = {
val describeShareGroupOffsetsRequest =
request.body[DescribeShareGroupOffsetsRequest]
- // TODO: Implement the DescribeShareGroupOffsetsRequest handling
- requestHelper.sendMaybeThrottle(request,
describeShareGroupOffsetsRequest.getErrorResponse(Errors.UNSUPPORTED_VERSION.exception))
- CompletableFuture.completedFuture[Unit](())
+
+ if (!isShareGroupProtocolEnabled) {
+ requestHelper.sendMaybeThrottle(request,
describeShareGroupOffsetsRequest.getErrorResponse(Errors.UNSUPPORTED_VERSION.exception))
+ CompletableFuture.completedFuture[Unit](())
+ } else if (!authHelper.authorize(request.context, READ, GROUP,
describeShareGroupOffsetsRequest.data.groupId)) {
+ requestHelper.sendMaybeThrottle(request,
describeShareGroupOffsetsRequest.getErrorResponse(Errors.GROUP_AUTHORIZATION_FAILED.exception))
+ CompletableFuture.completedFuture[Unit](())
+ } else {
+ val topicNamesToIds = metadataCache.topicNamesToIds()
+ val topicIdToNames = metadataCache.topicIdsToNames()
+
+ val readStateSummaryData =
getReadShareGroupStateSummaryRequestFromDescribeShareGroupOffsetsRequest(
+ describeShareGroupOffsetsRequest.data(),
+ topicNamesToIds
+ )
+ groupCoordinator.describeShareGroupOffsets(
+ request.context,
+ readStateSummaryData,
+ ).handle[Unit] { (response, exception) =>
+ if (exception != null) {
+ requestHelper.sendMaybeThrottle(request,
describeShareGroupOffsetsRequest.getErrorResponse(exception))
+ } else {
+ requestHelper.sendMaybeThrottle(
+ request,
+ new DescribeShareGroupOffsetsResponse(
+
getDescribeShareGroupOffsetsResponseFromReadShareGroupStateSummaryResponse(response,
topicIdToNames)
+ )
+ )
+ }
+ }
+ }
+ }
+
+ private def
getReadShareGroupStateSummaryRequestFromDescribeShareGroupOffsetsRequest(describeShareGroupOffsetsRequestData:
DescribeShareGroupOffsetsRequestData,
+
topicNamesId: util.Map[String, Uuid]
+
): ReadShareGroupStateSummaryRequestData = {
+ val readStateSummaryTopics =
describeShareGroupOffsetsRequestData.topics.asScala.map(
+ topic => {
+ val partitions = topic.partitions.asScala.map(
+ partitionIndex => {
+ new PartitionData()
+ .setPartition(partitionIndex)
+ .setLeaderEpoch(0)
Review Comment:
I can get rid of that line where we explicitly set the Leader Epoch to 0.
However, the default value which `new PartitionData()` would set is 0 as well.
Given that `DescribeShareGroupOffsetsRequestTopic` doesn't have the Epoch
information on it, it would always be set to default.
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