org.apache.storm.kafka.spout.internal

Class CommitMetadataManager

java.lang.Object

org.apache.storm.kafka.spout.internal.CommitMetadataManager

public final class CommitMetadataManager
extends Object

Generates and reads commit metadata.

Constructor Summary

Constructors

Constructor and Description
CommitMetadataManager(TopologyContext context, KafkaSpoutConfig.ProcessingGuarantee processingGuarantee) Create a manager with the given context.

Method Summary

Modifier and Type	Method and Description
String	getCommitMetadata()
boolean	isOffsetCommittedByThisTopology(org.apache.kafka.common.TopicPartition tp, org.apache.kafka.clients.consumer.OffsetAndMetadata committedOffset, Map<org.apache.kafka.common.TopicPartition,OffsetManager> offsetManagers) Checks if OffsetAndMetadata was committed by a KafkaSpout instance in this topology.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CommitMetadataManager

public CommitMetadataManager(TopologyContext context,
                             KafkaSpoutConfig.ProcessingGuarantee processingGuarantee)

Create a manager with the given context.

Method Detail

isOffsetCommittedByThisTopology

public boolean isOffsetCommittedByThisTopology(org.apache.kafka.common.TopicPartition tp,
                                               org.apache.kafka.clients.consumer.OffsetAndMetadata committedOffset,
                                               Map<org.apache.kafka.common.TopicPartition,OffsetManager> offsetManagers)

Checks if OffsetAndMetadata was committed by a KafkaSpout instance in this topology.

Parameters:

tp - The topic partition the commit metadata belongs to.

committedOffset - OffsetAndMetadata info committed to Kafka

offsetManagers - The offset managers.

Returns:

true if this topology committed this OffsetAndMetadata, false otherwise

getCommitMetadata

public String getCommitMetadata()