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https://issues.apache.org/jira/browse/FLINK-8190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tzu-Li (Gordon) Tai resolved FLINK-8190.
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Resolution: Fixed
> Add extra FlinkKafkaConsumer constructors to expose pattern-based topic
> subscription functionality
> --------------------------------------------------------------------------------------------------
>
> Key: FLINK-8190
> URL: https://issues.apache.org/jira/browse/FLINK-8190
> Project: Flink
> Issue Type: New Feature
> Components: Kafka Connector
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Fix For: 1.4.0, 1.5.0
>
>
> The required internals for pattern-based topic discovery was implemented as
> part of FLINK-4022 (along with partition discovery). However, the
> functionality for pattern-based topic discovery was not yet exposed via any
> visible user API on the version-specific subclasses of
> {{FlinkKafkaConsumerBase}}.
> I propose to add two more constructors for this:
> {code}
> public FlinkKafkaConsumerXX(java.util.regex.Pattern subscriptionPattern,
> DeserializationSchema<T> schema, Properties props);
> public FlinkKafkaConsumerXX(java.util.regex.Pattern subscriptionPattern,
> KeyedDeserializationSchema<T> schema, Properties props);
> {code}
> This allows the consumer to pick up all matching topics on startup.
> To continuously pick up matching topics on the fly when they are created
> after the job has already started running, users should additionally set the
> {{KEY_PARTITION_DISCOVERY_INTERVAL_MILLIS}} property, as they would do for
> partition discovery.
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