ci/checkstyle/checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
  ~ Licensed to the Apache Software Foundation (ASF) under one or more
  ~ contributor license agreements.  See the NOTICE file distributed with
  ~ this work for additional information regarding copyright ownership.
  ~ The ASF licenses this file to You under the Apache License, Version 2.0
  ~ (the "License"); you may not use this file except in compliance with
  ~ the License.  You may obtain a copy of the License at
  ~
  ~     http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->

<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<!--
    This configuration file was written by the eclipse-cs plugin configuration editor
-->
<!--
    Checkstyle-Configuration: paas
    Description: none
-->
<module name="Checker">
  <module name="FileTabCharacter">
    <!-- Checks that there are no tab characters in the file. -->
  </module>
  <module name="NewlineAtEndOfFile">
  </module>
  <module name="TreeWalker">
    <module name="AvoidStarImport"/>
    <module name="EmptyStatement"/>
    <module name="LeftCurly">
      <!-- Checks for placement of the left curly brace ('{'). -->
      <property name="severity" value="error"/>
    </module>
    <module name="ModifierOrder"/>
    <module name="NoWhitespaceAfter">
      <!-- Checks that there is no whitespace after various unary operators.
           Linebreaks are allowed.
      -->
      <property name="tokens" value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS,
        UNARY_PLUS"/>
      <property name="allowLineBreaks" value="true"/>
      <property name="severity" value="error"/>
    </module>
    <!-- Checks for braces around if and else blocks -->
    <module name="NeedBraces">
      <property name="severity" value="error"/>
      <property name="tokens" value="LITERAL_IF, LITERAL_ELSE, LITERAL_FOR, LITERAL_WHILE, LITERAL_DO"/>
    </module>
    <module name="NoWhitespaceBefore">
      <!-- Checks that there is no whitespace before various unary operators.
           Linebreaks are allowed.
      -->
      <property name="tokens" value="SEMI, DOT, POST_DEC, POST_INC"/>
      <property name="allowLineBreaks" value="true"/>
      <property name="severity" value="error"/>
    </module>
    <module name="ParenPad">
      <!-- Checks that there is no whitespace before close parens or after
           open parens.
      -->
      <property name="severity" value="error"/>
    </module>
    <!-- Checks for over-complicated boolean expressions. -->
    <module name="SimplifyBooleanExpression"/>
    <module name="RedundantImport"/>
    <module name="RedundantModifier">
      <property name="tokens" value="METHOD_DEF, VARIABLE_DEF, ANNOTATION_FIELD_DEF, INTERFACE_DEF, CLASS_DEF, ENUM_DEF"/>
    </module>
    <module name="RightCurly">
      <!-- Checks right curlies on CATCH, ELSE, and TRY blocks are on
      the same line. e.g., the following example is fine:
      <pre>
        if {
          ...
        } else
      </pre>
      -->
      <!-- This next example is not fine:
      <pre>
        if {
          ...
        }
        else
      </pre>
      -->
      <property name="option" value="same"/>
      <property name="severity" value="error"/>
    </module>
    <module name="UnusedImports">
      <property name="processJavadoc" value="true"/>
    </module>
    <module name="UpperEll">
      <!-- Checks that long constants are defined with an upper ell.-->
      <property name="severity" value="error"/>
    </module>
    <module name="WhitespaceAfter">
      <!-- Checks that commas, semicolons and typecasts are followed by
           whitespace.
      -->
      <property name="tokens" value="COMMA, SEMI, TYPECAST"/>
    </module>
    <module name="WhitespaceAround">
      <!-- Checks that various tokens are surrounded by whitespace.
           This includes most binary operators and keywords followed
           by regular or curly braces.
      -->
      <property name="tokens" value="ASSIGN, BAND, BAND_ASSIGN, BOR,
        BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN,
        EQUAL, GE, GT, LAND, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE,
        LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF, LITERAL_RETURN,
        LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS,
        MINUS_ASSIGN, MOD, MOD_ASSIGN, NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION,
        SL, SL_ASSIGN, SR_ASSIGN, STAR, STAR_ASSIGN"/>
      <property name="severity" value="error"/>
    </module>
  </module>
</module>