org.apache.flink.connector.pulsar.source.enumerator.subscriber

Interface PulsarSubscriber

All Superinterfaces:

Serializable

All Known Implementing Classes:

BasePulsarSubscriber, TopicListSubscriber, TopicPatternSubscriber

@Internal
public interface PulsarSubscriber
extends Serializable

Pulsar consumer allows a few different ways to consume from the topics, including:

1. Subscribe from a collection of topics.
2. Subscribe to a topic pattern using Java Regex.

The PulsarSubscriber provides a unified interface for the Pulsar source to support all these two types of subscribing mode.

Method Summary

Modifier and Type	Method and Description
Set<TopicPartition>	getSubscribedTopicPartitions(org.apache.pulsar.client.admin.PulsarAdmin pulsarAdmin, RangeGenerator rangeGenerator, int parallelism) Get a set of subscribed TopicPartitions.
static PulsarSubscriber	getTopicListSubscriber(List<String> topics)
static PulsarSubscriber	getTopicPatternSubscriber(Pattern topicPattern, org.apache.pulsar.client.api.RegexSubscriptionMode subscriptionMode)

Method Detail

getSubscribedTopicPartitions

Set<TopicPartition> getSubscribedTopicPartitions(org.apache.pulsar.client.admin.PulsarAdmin pulsarAdmin,
                                                 RangeGenerator rangeGenerator,
                                                 int parallelism)

Get a set of subscribed TopicPartitions. The method could throw IllegalStateException, an extra try catch is required.

Parameters:

pulsarAdmin - The admin interface used to retrieve subscribed topic partitions.

rangeGenerator - The range for different partitions.

parallelism - The parallelism of flink source.

Returns:

A subscribed TopicPartition for each pulsar topic partition.

getTopicListSubscriber

static PulsarSubscriber getTopicListSubscriber(List<String> topics)

getTopicPatternSubscriber

static PulsarSubscriber getTopicPatternSubscriber(Pattern topicPattern,
                                                  org.apache.pulsar.client.api.RegexSubscriptionMode subscriptionMode)