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https://issues.apache.org/jira/browse/FLINK-7968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16236262#comment-16236262
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ASF GitHub Bot commented on FLINK-7968:
---------------------------------------
GitHub user StephanEwen opened a pull request:
https://github.com/apache/flink/pull/4938
[FLINK-7968] [core] Move DataOutputSerializer and DataInputDeserializer to
'flink-core'
## What is the purpose of the change
This moves the classes `DataInputDeserializer` and `DataOutputSerializer`
to `flink-core`, because these classes are used across difference projects
(`flink-runtime` and `flink-queryable-state`) and were previously duplicated.
This is also needed for future cleanup in the proper scoping of
`SerializationSchema`.
It is easily possible, because these classes have no dependencies on other
Flink classes anyways.
## Changelog
- Move `DataInputDeserializer` and `DataOutputSerializer` to `flink-core`
- Move associated tests and test utils to `flink-core`
- Delete the duplicate serializers in `flink-queryable-state`.
## Verifying this change
This change is a trivial rework / code cleanup which is covered by existing
tests.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes /
**no** / don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **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/StephanEwen/incubator-flink move_data_in_out
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4938.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 #4938
----
commit 6afd68b100edab4689a6e7a39b5aee7743e05853
Author: Stephan Ewen <[email protected]>
Date: 2017-11-02T16:19:19Z
[hotfix] [tests] Improve TypeInfoTestCoverageTest
commit 4d808a456d698253b2a77cc79e7d4386ceeab706
Author: Stephan Ewen <[email protected]>
Date: 2017-11-02T17:27:23Z
[FLINK-7968] [core] Move DataOutputSerializer and DataInputDeserializer to
'flink-core'
These core flink utils are independent of any other runtime classes and
are also used both in flink-runtime and in flink-queryable-state (which
duplicated
the code).
----
> Deduplicate serializer classes between runtime and queryable state
> ------------------------------------------------------------------
>
> Key: FLINK-7968
> URL: https://issues.apache.org/jira/browse/FLINK-7968
> Project: Flink
> Issue Type: Bug
> Components: Queryable State
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.4.0
>
>
> Some serializer classes where duplicated into {{flink-queryable-state}} to
> avoid a dependency on {{flink-runtime}}.
> The proper solution here is to move the classes to the shared {{flink-core}}
> project, because these classes are actually useful in a series of API
> utilities and they do not have any dependency on other flink classes at all.
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