dongnuo123 commented on code in PR #15798:
URL: https://github.com/apache/kafka/pull/15798#discussion_r1583740908
##########
group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java:
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@@ -1169,6 +1173,64 @@ private void
throwIfStaticMemberIsUnknown(ConsumerGroupMember staticMember, Stri
}
}
+ /**
+ * Validates if the received classic member protocols are supported by the
group.
+ *
+ * @param group The ConsumerGroup.
+ * @param memberId The joining member id.
+ * @param protocolType The joining member protocol type.
+ * @param protocols The joining member protocol collection.
+ */
+ private void throwIfClassicProtocolIsNotSupported(
+ ConsumerGroup group,
+ String memberId,
+ String protocolType,
+ JoinGroupRequestProtocolCollection protocols
+ ) {
+ if (!group.supportsClassicProtocols(protocolType,
ClassicGroupMember.plainProtocolSet(protocols))) {
+ throw Errors.INCONSISTENT_GROUP_PROTOCOL.exception("Member " +
memberId + "'s protocols are not supported.");
+ }
+ }
+
+ /**
+ * Deserialize the subscription in JoinGroupRequestProtocolCollection.
+ * All the protocols have the same subscription, so the method picks a
random one.
+ *
+ * @param protocols The JoinGroupRequestProtocolCollection.
+ * @return The Subscription.
+ */
+ private static ConsumerPartitionAssignor.Subscription
deserializeSubscription(
+ JoinGroupRequestProtocolCollection protocols
+ ) {
+ try {
+ return ConsumerProtocol.deserializeSubscription(
Review Comment:
Yeah it makes sense. I can open another pr once this one is merged.
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