dajac commented on code in PR #15152:
URL: https://github.com/apache/kafka/pull/15152#discussion_r1467689455
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group-coordinator/src/main/java/org/apache/kafka/coordinator/group/GroupMetadataManager.java:
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@@ -452,21 +453,38 @@ public Group group(String groupId, long committedOffset)
throws GroupIdNotFoundE
/**
* Get the Group List.
*
- * @param statesFilter The states of the groups we want to list.
- * If empty all groups are returned with their state.
- * @param committedOffset A specified committed offset corresponding to
this shard
+ * @param statesFilter The states of the groups we want to list.
+ * If empty, all groups are returned with their
state.
+ * @param typesFilter The types of the groups we want to list.
+ * If empty, all groups are returned with their
type.
+ * @param committedOffset A specified committed offset corresponding to
this shard.
*
* @return A list containing the ListGroupsResponseData.ListedGroup
*/
+ public List<ListGroupsResponseData.ListedGroup> listGroups(
+ Set<String> statesFilter,
+ Set<String> typesFilter,
+ long committedOffset
+ ) {
+ // Converts each string to a value in the GroupType enum while being
case-insensitive.
+ Set<Group.GroupType> enumTypesFilter = typesFilter.stream()
+ .map(Group.GroupType::parse)
+ .collect(Collectors.toSet());
Review Comment:
> In the consumerGroupCommand tool we return an illegalArgumentException if
the type is unknown so I thought maybe it would make sense to do that here as
well.
Yeah, the context is a bit different here. You have to think about how
illegalArgumentException will get returned to the user. The Kafka protocol does
not have any error for this so it converts it to a Unknown Server Error without
any details. This is not great from a user perspective.
I think that the correct way would be to try parsing the received group
type. If it succeeds, great, we keep it. Otherwise, we simply discard it. If
you want to keep the illegalArgumentException, you could catch it when you call
`parse`.
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