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https://issues.apache.org/jira/browse/FLINK-12602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16848836#comment-16848836
 ] 

sunjincheng edited comment on FLINK-12602 at 5/27/19 11:06 AM:
---------------------------------------------------------------

Sounds good [~Zentol]!

I have a few updates on the handling of the connector, we have two ways to deal 
with it:
 # Improve the script to check any (compile) dependencies with a 
scala-suffix(which we mentioned above).
 # Add the `flink-streaming-java` dependency wich  `provided`  scope for the 
corresponding connectors.

For approach 1, we should add check logic:
 * The command of `dependency:tree` should add an option: ` 
-Dincludes=org.apache.flink:*_2.1*::  ` such as 
`org.apache.flink:flink-streaming-java_2.11`.
 * The command of `grep ` also need to add the logic: `-E "org.scala-lang|- 
org.apache.flink:[^:]+_2\.1[0-9]"` , also for test `grep --invert-match 
"org.apache.flink:[^:]*_2\.1[0-9]:.*:.*:test"`.

For approach 2, we should add the dependency of `link-streaming-java` for 
`flink-sql-connector-elasticsearch6 flink-sql-connector-kafka 
flink-sql-connector-kafka-0.10 flink-sql-connector-kafka-0.11 
flink-sql-connector-kafka-0.9`.  And I have prepared the changs 
[here|[https://github.com/sunjincheng121/flink/pull/96]]

For now, I think the change logic in approach 1 is a bit complex(a lot of 
filtering processing logic). So, I prefer the approach 1, due to even we add 
some new module in the future we should well know whether we should add the 
scala-suffix for the `artifactId`, then manually add dependencies on for the 
scala in the pom. 

What do you think?


was (Author: sunjincheng121):
Sounds good [~Zentol]!

I have a few updates on the handling of the connector, we have two ways to deal 
with it:
 # Improve the script to check any (compile) dependencies with a 
scala-suffix(which we mentioned above).
 # Add the `flink-streaming-java` dependency wich  `provided`  scope for the 
corresponding connectors.

For approach 1, we should add check logic:
 * The command of `dependency:tree` should add an option: ` 
-Dincludes=org.apache.flink:*_2.1*::  ` such as 
`org.apache.flink:flink-streaming-java_2.11`.
 * The command of `grep ` also need to add the logic: `-E "org.scala-lang|- 
org.apache.flink:[^:]+_2\.1[0-9]"` , also for test `grep --invert-match 
"org.apache.flink:[^:]*_2\.1[0-9]:.*:.*:test"`.

For approach 2, we should add the dependency of `link-streaming-java` for 
`flink-sql-connector-elasticsearch6 flink-sql-connector-kafka 
flink-sql-connector-kafka-0.10 flink-sql-connector-kafka-0.11 
flink-sql-connector-kafka-0.9`.

For now, I think the change logic in approach 1 is a bit complex(a lot of 
filtering processing logic). So, I prefer the approach 1, due to even we add 
some new module in the future we should well know whether we should add the 
scala-suffix for the `artifactId`, then manually add dependencies on for the 
scala in the pom.

What do you think?

> Correct the flink pom `artifactId` config and scala-free check logic
> --------------------------------------------------------------------
>
>                 Key: FLINK-12602
>                 URL: https://issues.apache.org/jira/browse/FLINK-12602
>             Project: Flink
>          Issue Type: Bug
>          Components: Build System
>    Affects Versions: 1.9.0
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>            Priority: Major
>
> I find a shell issue in `verify_scala_suffixes.sh`(line 145) as follows:
> {code}
> grep "${module}_\d\+\.\d\+</artifactId>" "{}"
> {code}
> This code want to find out all modules that the module's `artifactId`  with a 
> `scala_binary_version` suffix. 
> but the problem is our all `artifactId` value is in the pattern of 
> `XXX_${scala.binary.version}`, such as:
> {code}
> <artifactId>flink-tests_${scala.binary.version}</artifactId>
> {code}
> then the result always empty, so this check did not take effect.
> I have already initiated a discussion of the issue. Please check the Mail 
> thread here for details.
> http://mail-archives.apache.org/mod_mbox/flink-dev/201905.mbox/%3ccajsjtkw+8mcsc0fvneyaovl_ttrr_uuosx-tfgxj5gfqp1a...@mail.gmail.com%3E



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