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https://issues.apache.org/jira/browse/FLINK-6107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994686#comment-15994686
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Stephan Ewen commented on FLINK-6107:
-------------------------------------
I agree that we want an import checkstyle (as [~Zentol] mentioned, it helps
will pull requests).
If no one (except maybe me) has any preference for the import styles, would
anyone mind updating it? I'll volunteer to figure out over the next week how to
implement these rules...
> Add custom checkstyle for flink-streaming-java
> ----------------------------------------------
>
> Key: FLINK-6107
> URL: https://issues.apache.org/jira/browse/FLINK-6107
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Fix For: 1.3.0
>
>
> There was some consensus on the ML
> (https://lists.apache.org/thread.html/94c8c5186b315c58c3f8aaf536501b99e8b92ee97b0034dee295ff6a@%3Cdev.flink.apache.org%3E)
> that we want to have a more uniform code style. We should start
> module-by-module and by introducing increasingly stricter rules. We have to
> be aware of the PR situation and ensure that we have minimal breakage for
> contributors.
> This issue aims at adding a custom checkstyle.xml for
> {{flink-streaming-java}} that is based on our current checkstyle.xml but adds
> these checks for Javadocs:
> {code}
> <!--
> JAVADOC CHECKS
> -->
> <!-- Checks for Javadoc comments. -->
> <!-- See http://checkstyle.sf.net/config_javadoc.html -->
> <module name="JavadocMethod">
> <property name="scope" value="protected"/>
> <property name="severity" value="error"/>
> <property name="allowMissingJavadoc" value="true"/>
> <property name="allowMissingParamTags" value="true"/>
> <property name="allowMissingReturnTag" value="true"/>
> <property name="allowMissingThrowsTags" value="true"/>
> <property name="allowThrowsTagsForSubclasses" value="true"/>
> <property name="allowUndeclaredRTE" value="true"/>
> </module>
> <!-- Check that paragraph tags are used correctly in Javadoc. -->
> <module name="JavadocParagraph"/>
> <module name="JavadocType">
> <property name="scope" value="protected"/>
> <property name="severity" value="error"/>
> <property name="allowMissingParamTags" value="true"/>
> </module>
> <module name="JavadocStyle">
> <property name="severity" value="error"/>
> <property name="checkHtml" value="true"/>
> </module>
> {code}
> This checks:
> - Every type has a type-level Javadoc
> - Proper use of {{<p>}} in Javadocs
> - First sentence must end with a proper punctuation mark
> - Proper use (including closing) of HTML tags
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