dubin555 opened a new pull request #9356: [FLINK-13340][kafka][table] Add 'topics' and 'subscription' option for Flink Kafka connector URL: https://github.com/apache/flink/pull/9356 ## What is the purpose of the change This pull request enable Flink Kafka table enable more topic option: ``` new Kafka() .version("0.11") .topic("test-flink-1") // .subscriptionPattern("test-flink-.*") // .topics("test-flink-1", "test-flink-2") .startFromEarliest() .property("zookeeper.connect", "sap-zookeeper1:2181") .property("bootstrap.servers", "sap-kafka1:9092")) ``` any one of 'topic', 'topics', 'subscriptionPattern' is functional. ## Brief change log - *Implement a new Class 'KafkaTopicDescriptor' to describe the Kafka topic option* - *Implement 'KafkaConsumerValidator' and 'KafkaProducerValidator' instead of one single 'KafkaValidator' to valid the consumer topic setting and producer setting* - *Implement the consumer function with help of 'KafkaConsumer' of different Kafka version* ## Verifying this change This change is already covered by existing tests, such as *KafkaTest*. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): yes - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no - The serializers: don't know - The runtime per-record code paths (performance sensitive): no - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? no - If yes, how is the feature documented? JavaDocs
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