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lamber-ken commented on HUDI-354: --------------------------------- Because of it's a big work to do for each new checkstyle rule, so I create a new issue which working for ImportOrder rule. > Introduce stricter comment and code style validation rules > ---------------------------------------------------------- > > Key: HUDI-354 > URL: https://issues.apache.org/jira/browse/HUDI-354 > Project: Apache Hudi (incubating) > Issue Type: Task > Reporter: vinoyang > Priority: Major > Attachments: Screenshot 2019-11-22 at 4.58.58 PM.png, Screenshot > 2019-11-22 at 5.02.32 PM.png > > > This is an umbrella issue used to track apply some stricter comment and code > style validation rules for the whole project. The rules list below: > # All public classes must add class-level comments; > # All comments must end with a clear "." > # In the import statement of the class, clearly distinguish (by blank lines) > the import of Java SE and the import of non-java SE. Currently, I saw at > least two projects(Spark and Flink) that implement this rule. Flink > implements stricter rules than Spark. It is divided into several blocks from > top to bottom(owner import -> non-owner and non-JavaSE import -> Java SE > import -> static import), each block are sorted according to the natural > sequence of letters; > # Reconfirm the method and whether the comment is consistency; > Each project sub-module mappings to one subtask. > How to find all the invalidated points? > * Add the XML code snippet into {{PROJECT_ROOT/style/checkstyle.xml}} : > {code:java} > <module name="TreeWalker"> > <!-- add the below modules--> > <!-- JAVADOC CHECKS --> > <module name="JavadocStyle"> > <property name="severity" value="error"/> > </module> > <module name="JavadocType"> > <property name="scope" value="protected"/> > <property name="severity" value="error"/> > <property name="allowMissingParamTags" value="true"/> > </module> > <module name="ImportOrder"> > <!-- Checks for out of order import statements. --> > <property name="severity" value="error"/> > <property name="groups" value="org.apache.hudi,*,javax,java,scala"/> > <property name="separated" value="true"/> > <property name="sortStaticImportsAlphabetically" value="true"/> > <property name="option" value="bottom"/> > <property name="tokens" value="STATIC_IMPORT, IMPORT"/> > <message key="import.ordering" > value="Import {0} appears after other imports that it should precede"/> > </module> > <module name="RedundantImport"> > <!-- Checks for redundant import statements. --> > <property name="severity" value="error"/> > <message key="import.redundancy" > value="Redundant import {0}."/> > </module> > <module name="AvoidStarImport"> > <property name="severity" value="error"/> > </module> > </module>{code} > * Make sure you have installed CheckStyle-IDEA plugin and activated for the > project. > * Scan the project module you want to refactor and fix all the issues one by > one. > -- This message was sent by Atlassian Jira (v8.3.4#803005)