Package org.apache.storm.kafka.spout
Class EmptyKafkaTupleListener
java.lang.Object
org.apache.storm.kafka.spout.EmptyKafkaTupleListener
- All Implemented Interfaces:
Serializable
,KafkaTupleListener
- See Also:
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
onAck
(KafkaSpoutMessageId msgId) Called when a tuple is acked.void
onEmit
(List<Object> tuple, KafkaSpoutMessageId msgId) Called when the tuple is emitted and auto commit is disabled.void
Called when the maximum number of retries have been reached.void
onPartitionsReassigned
(Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Called when kafka partitions are rebalanced.void
onRetry
(KafkaSpoutMessageId msgId) Called when the Kafka spout sets a record for retry.void
open
(Map<String, Object> conf, TopologyContext context) Called during the initialization of the kafka spout.toString()
-
Constructor Details
-
EmptyKafkaTupleListener
public EmptyKafkaTupleListener()
-
-
Method Details
-
open
Description copied from interface:KafkaTupleListener
Called during the initialization of the kafka spout.- Specified by:
open
in interfaceKafkaTupleListener
- Parameters:
conf
- The storm configuration.context
- TheTopologyContext
-
onEmit
Description copied from interface:KafkaTupleListener
Called when the tuple is emitted and auto commit is disabled. If kafka auto commit is enabled, the kafka consumer will periodically (depending on the commit interval) commit the offsets. Therefore, storm disables anchoring for tuples when auto commit is enabled and the spout will not receive acks and fails for those tuples.- Specified by:
onEmit
in interfaceKafkaTupleListener
- Parameters:
tuple
- the storm tuple.msgId
- The id of the tuple in the spout.
-
onAck
Description copied from interface:KafkaTupleListener
Called when a tuple is acked.- Specified by:
onAck
in interfaceKafkaTupleListener
- Parameters:
msgId
- The id of the tuple in the spout.
-
onPartitionsReassigned
public void onPartitionsReassigned(Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Description copied from interface:KafkaTupleListener
Called when kafka partitions are rebalanced.- Specified by:
onPartitionsReassigned
in interfaceKafkaTupleListener
- Parameters:
topicPartitions
- The list of partitions that are now assigned to the consumer (may include partitions previously assigned to the consumer)
-
onRetry
Description copied from interface:KafkaTupleListener
Called when the Kafka spout sets a record for retry.- Specified by:
onRetry
in interfaceKafkaTupleListener
- Parameters:
msgId
- The id of the tuple in the spout.
-
onMaxRetryReached
Description copied from interface:KafkaTupleListener
Called when the maximum number of retries have been reached.- Specified by:
onMaxRetryReached
in interfaceKafkaTupleListener
- Parameters:
msgId
- The id of the tuple in the spout.
-
toString
-