GitHub user medcv opened a pull request:
https://github.com/apache/flink/pull/5996
[FLINK-9343] [Example] Add Async Example with External Rest API call
## What is the purpose of the change
*(For example: This pull request makes task deployment go through the blob
server, rather than through RPC. That way we avoid re-transferring them on each
deployment (during recovery).)*
## Brief change log
- Async I/O is a good way to call External resources such as REST API and
enrich the stream with external data.
- Adding example to simulate Async GET api call on an input stream.
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- 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? (no)
- If yes, how is the feature documented? (not applicable / docs /
JavaDocs / not documented)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/medcv/flink patch-3
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5996.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 #5996
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commit 2d6bfa1662b6c514cbfb211ccdaef369c4594622
Author: Yazdan.JS <y_shirvany@...>
Date: 2018-05-12T05:41:07Z
[FLINK-9343] Add Async Example with External Rest API call
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