org.apache.flink.connector.pulsar.source.offset

Class SpecifiedStartOffsetInitializer

java.lang.Object

org.apache.flink.connector.pulsar.source.offset.SpecifiedStartOffsetInitializer

All Implemented Interfaces:

Serializable, StartOffsetInitializer

@Internal
public class SpecifiedStartOffsetInitializer
extends Object
implements StartOffsetInitializer

An implementation of StartOffsetInitializer which initializes the offsets of the partition according to the user specified offsets.

Should be initialized through StartOffsetInitializer.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.connector.pulsar.source.StartOffsetInitializer

StartOffsetInitializer.CreationConfiguration

Constructor Summary

Constructors

Constructor and Description
SpecifiedStartOffsetInitializer(Map<AbstractPartition,org.apache.pulsar.client.api.MessageId> initialOffsets, org.apache.pulsar.client.api.MessageId defaultOffset, boolean inclusive)

Method Summary

Modifier and Type	Method and Description
void	initializeBeforeCreation(AbstractPartition partition, StartOffsetInitializer.CreationConfiguration configuration) Initializes the offset for the given consumer configuration and partition.
Optional<String>	verifyOffset(AbstractPartition partition, Supplier<Optional<org.apache.pulsar.client.api.MessageId>> lastMessageIdFetcher, Supplier<Optional<org.apache.pulsar.client.api.Message<byte[]>>> firstMessageFetcher) Verifies if the offset was initialized correctly.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.connector.pulsar.source.StartOffsetInitializer

committedOffsets, committedOffsets, earliest, earliest, initializeAfterCreation, latest, latest, offset, offsets, offsets, rollback, timestamps

Constructor Detail

SpecifiedStartOffsetInitializer

public SpecifiedStartOffsetInitializer(Map<AbstractPartition,org.apache.pulsar.client.api.MessageId> initialOffsets,
                                       org.apache.pulsar.client.api.MessageId defaultOffset,
                                       boolean inclusive)

Method Detail

initializeBeforeCreation

public void initializeBeforeCreation(AbstractPartition partition,
                                     StartOffsetInitializer.CreationConfiguration configuration)

Description copied from interface: StartOffsetInitializer

Initializes the offset for the given consumer configuration and partition.

Specified by:

initializeBeforeCreation in interface StartOffsetInitializer

Parameters:

partition - the partition for which the consumer is about to be created

configuration - the configuration used to create consumer

verifyOffset

public Optional<String> verifyOffset(AbstractPartition partition,
                                     Supplier<Optional<org.apache.pulsar.client.api.MessageId>> lastMessageIdFetcher,
                                     Supplier<Optional<org.apache.pulsar.client.api.Message<byte[]>>> firstMessageFetcher)

Description copied from interface: StartOffsetInitializer

Verifies if the offset was initialized correctly.

Specified by:

verifyOffset in interface StartOffsetInitializer

Returns:

an error message if no appropriate data point could be found or empty if initialization worked correctly.

See Also:

PulsarSourceOptions.VERIFY_INITIAL_OFFSETS