GitHub user xccui opened a pull request:
https://github.com/apache/flink/pull/5505
[FLINK-8538][table]Add a Kafka table source factory with JSON format support
## What is the purpose of the change
This PR adds Kafka JSON table source factories for different Kafka versions.
## Brief change log
- Adds a `Kafka` connector descriptor and a corresponding `KafkaValidator`.
- Adds a `KafkaJsonTableSourceFactory` and different version specific
implementations.
- Adds a method to get the column numbers in `TableSchema`.
- Adds `equals()` and `hashCode()` methods for `KafkaTableSource` and
`KafkaJsonTableSource`.
**Note:** the rowtime setting has not been implemented yet as I think a
more friendly API to get the rowtime attributes should be provided in
`DescriptorProperties`.
## Verifying this change
This change can be verified by the tests added in
`KafkaJsonTableFromDescriptorTestBase` and the other sub-classes. However, they
are temporarily commented.
## 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: (no)
- 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? (**yes**)
- If yes, how is the feature documented? (JavaDocs)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/xccui/flink FLINK-8538
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5505.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5505
commit 3da847507b65047a3fd02058596f6f712a9332de
Author: Xingcan Cui
Date: 2018-02-12T10:11:36Z
[FLINK-8538][table]Add a Kafka table source factory with JSON format support
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