Package org.apache.storm.kafka.spout
Class EmptyKafkaTupleListener
java.lang.Object
org.apache.storm.kafka.spout.EmptyKafkaTupleListener
- All Implemented Interfaces:
Serializable,KafkaTupleListener
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidonAck(KafkaSpoutMessageId msgId) Called when a tuple is acked.voidonEmit(List<Object> tuple, KafkaSpoutMessageId msgId) Called when the tuple is emitted and auto commit is disabled.voidCalled when the maximum number of retries have been reached.voidonPartitionsReassigned(Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Called when kafka partitions are rebalanced.voidonRetry(KafkaSpoutMessageId msgId) Called when the Kafka spout sets a record for retry.voidopen(Map<String, Object> conf, TopologyContext context) Called during the initialization of the kafka spout.toString()
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Constructor Details
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EmptyKafkaTupleListener
public EmptyKafkaTupleListener()
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Method Details
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open
Description copied from interface:KafkaTupleListenerCalled during the initialization of the kafka spout.- Specified by:
openin interfaceKafkaTupleListener- Parameters:
conf- The storm configuration.context- TheTopologyContext
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onEmit
Description copied from interface:KafkaTupleListenerCalled 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:
onEmitin interfaceKafkaTupleListener- Parameters:
tuple- the storm tuple.msgId- The id of the tuple in the spout.
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onAck
Description copied from interface:KafkaTupleListenerCalled when a tuple is acked.- Specified by:
onAckin interfaceKafkaTupleListener- Parameters:
msgId- The id of the tuple in the spout.
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onPartitionsReassigned
public void onPartitionsReassigned(Collection<org.apache.kafka.common.TopicPartition> topicPartitions) Description copied from interface:KafkaTupleListenerCalled when kafka partitions are rebalanced.- Specified by:
onPartitionsReassignedin interfaceKafkaTupleListener- Parameters:
topicPartitions- The list of partitions that are now assigned to the consumer (may include partitions previously assigned to the consumer)
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onRetry
Description copied from interface:KafkaTupleListenerCalled when the Kafka spout sets a record for retry.- Specified by:
onRetryin interfaceKafkaTupleListener- Parameters:
msgId- The id of the tuple in the spout.
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onMaxRetryReached
Description copied from interface:KafkaTupleListenerCalled when the maximum number of retries have been reached.- Specified by:
onMaxRetryReachedin interfaceKafkaTupleListener- Parameters:
msgId- The id of the tuple in the spout.
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toString
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