[GitHub] [kafka] skaundinya15 commented on a change in pull request #10962: KAFKA-12234: Implement request/response for offsetFetch batching (KIP-709)

[GitBox <gi...@apache.org>]

skaundinya15 commented on a change in pull request #10962:
URL: https://github.com/apache/kafka/pull/10962#discussion_r665777053



##########
File path: clients/src/main/java/org/apache/kafka/common/requests/OffsetFetchRequest.java
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@@ -174,6 +315,28 @@ public boolean isAllPartitions() {
         return data.topics() == ALL_TOPIC_PARTITIONS;
     }
 
+    public boolean isAllPartitionsForGroup(String groupId) {
+        OffsetFetchRequestGroup group = data
+            .groupIds()
+            .stream()
+            .filter(g -> g.groupId().equals(groupId))
+            .collect(toSingleton());
+        return group.topics() == ALL_TOPIC_PARTITIONS_BATCH;
+    }
+
+    // Custom collector to filter a single element
+    private <T> Collector<T, ?, T> toSingleton() {

Review comment:
       Opened https://issues.apache.org/jira/browse/KAFKA-13045 to track this.




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