org.apache.flink.connector.pulsar.sink.writer.topic

Interface TopicExtractor<IN>

All Superinterfaces:

Serializable

@PublicEvolving
public interface TopicExtractor<IN>
extends Serializable

Choose topics from the message, used for dynamic generate topics in Pulsar sink.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	TopicExtractor.TopicMetadataProvider A wrapper for PulsarAdmin instance, we won't expose the Pulsar admin interface for better control the abstraction.

Method Summary

Modifier and Type	Method and Description
TopicPartition	extract(IN in, TopicExtractor.TopicMetadataProvider provider)
default void	open(SinkConfiguration sinkConfiguration) Implement this method if you have some non-serializable field.

Method Detail

extract

TopicPartition extract(IN in,
                       TopicExtractor.TopicMetadataProvider provider)

Parameters:

in - The message would be written to Pulsar.

provider - Used for query topic metadata.

Returns:

The topic you want to use. You can use both partitioned topic name or a topic name without partition information. We would query the partition information and pass it to TopicRouter if you return a topic name without partition information.

open

default void open(SinkConfiguration sinkConfiguration)

Implement this method if you have some non-serializable field.