hachikuji commented on code in PR #12206:
URL: https://github.com/apache/kafka/pull/12206#discussion_r891613523
##########
clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java:
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@@ -4321,6 +4328,94 @@ void handleFailure(Throwable throwable) {
return new UpdateFeaturesResult(new HashMap<>(updateFutures));
}
+ @Override
+ public DescribeMetadataQuorumResult
describeMetadataQuorum(DescribeMetadataQuorumOptions options) {
+ NodeProvider provider = new LeastLoadedNodeProvider();
+
+ final KafkaFutureImpl<QuorumInfo> future = new KafkaFutureImpl<>();
+ final long now = time.milliseconds();
+ final Call call = new Call(
+ "describeMetadataQuorum", calcDeadlineMs(now,
options.timeoutMs()), provider) {
+
+ private QuorumInfo createQuorumResult(final
DescribeQuorumResponseData.PartitionData partition) {
+ List<QuorumInfo.ReplicaState> voters = new ArrayList<>();
+ List<QuorumInfo.ReplicaState> observers = new ArrayList<>();
+ partition.currentVoters().forEach(v -> {
+ voters.add(new QuorumInfo.ReplicaState(v.replicaId(),
+ v.logEndOffset(),
+ OptionalLong.of(v.lastFetchTimestamp()),
+ OptionalLong.of(v.lastCaughtUpTimestamp())));
+ });
+ partition.observers().forEach(o -> {
+ observers.add(new QuorumInfo.ReplicaState(o.replicaId(),
+ o.logEndOffset(),
+ OptionalLong.of(o.lastFetchTimestamp()),
+ OptionalLong.of(o.lastCaughtUpTimestamp())));
+ });
+ QuorumInfo info = new QuorumInfo(partition.leaderId(), voters,
observers);
+ return info;
+ }
+
+ @Override
+ DescribeQuorumRequest.Builder createRequest(int timeoutMs) {
+ return new Builder(DescribeQuorumRequest.singletonRequest(
+ new TopicPartition(METADATA_TOPIC_NAME,
METADATA_TOPIC_PARTITION.partition())));
+ }
+
+ @Override
+ void handleResponse(AbstractResponse response) {
+ final DescribeQuorumResponse quorumResponse =
(DescribeQuorumResponse) response;
+ try {
+ if (quorumResponse.data().errorCode() !=
Errors.NONE.code()) {
+ throw
Errors.forCode(quorumResponse.data().errorCode()).exception();
+ }
+ if (quorumResponse.data().topics().size() > 1) {
+ String msg = String.format("DescribeMetadataQuorum
received {} topics when 1 was expected",
+ quorumResponse.data().topics().size());
+ log.debug(msg);
+ throw new UnknownServerException(msg);
+ }
+ DescribeQuorumResponseData.TopicData topic =
quorumResponse.data().topics().get(0);
+ if (!topic.topicName().equals(METADATA_TOPIC_NAME)) {
+ String msg = String.format("DescribeMetadataQuorum
received a topic with name {} when {} was expected",
+ topic.topicName(), METADATA_TOPIC_NAME);
+ log.debug(msg);
+ throw new UnknownServerException(msg);
+ }
+ if (topic.partitions().size() > 1) {
+ String msg = String.format("DescribeMetadataQuorum
received a topic {} with {} partitions when 1 was expected",
+ topic.topicName(), topic.partitions().size());
+ log.debug(msg);
+ throw new UnknownServerException(msg);
+ }
+ DescribeQuorumResponseData.PartitionData partition =
topic.partitions().get(0);
+ if (partition.partitionIndex() !=
METADATA_TOPIC_PARTITION.partition()) {
+ String msg = String.format("DescribeMetadataQuorum
received a single partition with index {} when {} was expected",
+ partition.partitionIndex(),
METADATA_TOPIC_PARTITION.partition());
+ log.debug(msg);
+ throw new UnknownServerException(msg);
+ }
+ if (partition.errorCode() != Errors.NONE.code()) {
+ throw
Errors.forCode(partition.errorCode()).exception();
+ }
+ future.complete(createQuorumResult(partition));
+ } catch (RuntimeException e) {
+ throw e;
+ } catch (Exception e) {
Review Comment:
`UnknownServerException` extends `KafkaException`, which extends
`RuntimeException`. So I think all the errors that we are raising above get
re-thrown in the previous `catch`.
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