Github user srdo commented on a diff in the pull request:
https://github.com/apache/storm/pull/2282#discussion_r134280097
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/EmptyKafkaTupleListener.java
---
@@ -0,0 +1,33 @@
+package org.apache.storm.kafka.spout;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.storm.spout.SpoutOutputCollector;
+import org.apache.storm.task.TopologyContext;
+
+public class EmptyKafkaTupleListener implements KafkaTupleListener {
+
+ @Override
+ public void open(Map<String, Object> conf, TopologyContext context,
SpoutOutputCollector collector) { }
+
+ @Override
+ public void onEmit(List<Object> tuple, KafkaSpoutMessageId msgId) { }
+
+ @Override
+ public void onAck(KafkaSpoutMessageId msgId) { }
+
+ @Override
+ public void onPartitionsReassigned(KafkaSpoutMessageId msgId) { }
+
+ @Override
+ public void onRetry(KafkaSpoutMessageId msgId) { }
+
+ @Override
+ public void onMaxRetryReached(KafkaSpoutMessageId msgId) { }
+
+ @Override
+ public String toString() {
+ return "EmptyKafkaTupleListener";
--- End diff --
Makes sense
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