mumrah commented on code in PR #19113:
URL: https://github.com/apache/kafka/pull/19113#discussion_r1982166952


##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ShareConsumerImpl.java:
##########
@@ -1062,6 +1065,24 @@ private void ensureExplicitAcknowledgement() {
         }
     }
 
+    /**
+     * Initializes the acknowledgement mode based on the configuration.
+     */
+    private static AcknowledgementMode 
initializeAcknowledgementMode(ConsumerConfig config) {
+        if (config == null) {
+            return AcknowledgementMode.UNKNOWN;
+        }
+        String acknowledgementModeStr = 
config.getString(ConsumerConfig.INTERNAL_SHARE_ACKNOWLEDGEMENT_MODE_CONFIG);
+        if ((acknowledgementModeStr == null) || 
acknowledgementModeStr.isEmpty()) {
+            return AcknowledgementMode.UNKNOWN;
+        } else if (acknowledgementModeStr.equalsIgnoreCase("implicit")) {
+            return AcknowledgementMode.IMPLICIT;
+        } else if (acknowledgementModeStr.equalsIgnoreCase("explicit")) {
+            return AcknowledgementMode.EXPLICIT;
+        }
+        return AcknowledgementMode.UNKNOWN;

Review Comment:
   Is it worth logging a warning if an unsupported value is given?



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