<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<!--
    Checkstyle configuration that checks the Google coding conventions from Google Java Style
    that can be found at https://google.github.io/styleguide/javaguide.html.

    Checkstyle is very configurable. Be sure to read the documentation at
    http://checkstyle.sf.net (or in your downloaded distribution).

    To completely disable a check, just comment it out or delete it from the file.

    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
 -->

<module name="Checker">
  <property name="charset" value="UTF-8"/>

  <property name="severity" value="error"/>

  <property name="fileExtensions" value="java, properties, xml"/>

  <!-- Checks for whitespace                               -->
  <!-- See http://checkstyle.sf.net/config_whitespace.html -->
  <module name="FileTabCharacter">
    <property name="eachLine" value="true"/>
  </module>
  <module name="NewlineAtEndOfFile">
    <property name="lineSeparator" value="lf"/>
  </module>

  <module name="TreeWalker">

    <module name="SuppressionCommentFilter">
      <property name="offCommentFormat" value="CHECKSTYLE: OFF"/>
      <property name="onCommentFormat"  value="CHECKSTYLE: ON"/>
    </module>

    <module name="Regexp">
      <property name="format" value="[ \t]++$"/>
      <property name="illegalPattern" value="true"/>
      <property name="message" value="Trailing whitespace"/>
    </module>

    <module name="OuterTypeFilename"/>
    <module name="IllegalTokenText">
      <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
      <property name="format"
                value="\\u00(08|09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
      <property name="message" value="Avoid using corresponding octal or Unicode escape."/>
    </module>
    <module name="AvoidEscapedUnicodeCharacters">
      <property name="allowEscapesForControlCharacters" value="true"/>
      <property name="allowByTailComment" value="true"/>
      <property name="allowNonPrintableEscapes" value="true"/>
    </module>
    <!--<module name="LineLength">-->
    <!--<property name="max" value="100"/>-->
    <!--<property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>-->
    <!--</module>-->
    <module name="AvoidStarImport"/>
    <module name="OneTopLevelClass"/>
    <module name="NoLineWrap"/>
    <module name="EmptyBlock">
      <property name="option" value="TEXT"/>
      <property name="tokens"
                value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
    </module>
    <module name="NeedBraces"/>
    <module name="LeftCurly"/>
    <module name="RightCurly">
      <property name="tokens" value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_DO"/>
    </module>
    <module name="RightCurly">
      <property name="option" value="alone"/>
      <property name="tokens"
                value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT, INSTANCE_INIT"/>
    </module>
    <module name="WhitespaceAround">
      <property name="allowEmptyConstructors" value="true"/>
      <property name="allowEmptyMethods" value="true"/>
      <property name="allowEmptyTypes" value="true"/>
      <property name="allowEmptyLoops" value="true"/>
      <message key="ws.notFollowed"
               value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
      <message key="ws.notPreceded"
               value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
    </module>
    <module name="OneStatementPerLine"/>
    <module name="MissingDeprecated"/>
    <module name="MultipleVariableDeclarations"/>
    <module name="ArrayTypeStyle"/>
    <!--<module name="MissingSwitchDefault"/>-->
    <!--<module name="FallThrough"/>-->
    <module name="UpperEll"/>
    <module name="ModifierOrder"/>
    <module name="RedundantModifier"/>
    <module name="EmptyLineSeparator">
      <property name="allowNoEmptyLineBetweenFields" value="true"/>
      <property name="allowMultipleEmptyLines" value="false"/>
      <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
    </module>
    <module name="SeparatorWrap">
      <property name="tokens" value="DOT"/>
      <property name="option" value="nl"/>
    </module>
    <module name="SeparatorWrap">
      <property name="tokens" value="COMMA"/>
      <property name="option" value="EOL"/>
    </module>
    <module name="PackageName">
      <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
      <message key="name.invalidPattern"
               value="Package name ''{0}'' must match pattern ''{1}''."/>
    </module>
    <module name="EmptyStatement"/>
    <module name="EqualsHashCode"/>
    <module name="MemberName"/>
    <module name="ParameterName"/>
    <module name="StaticVariableName"/>
    <module name="TypeName"/>
    <module name="LocalVariableName">
      <property name="allowOneCharVarInForLoop" value="true"/>
    </module>
    <!-- Not yet supported by Checkstyle-IDEA        <module name="CatchParameterName">
                <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>
                <message key="name.invalidPattern"
                         value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
            </module> -->
    <!--    <module name="ClassTypeParameterName">
                <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
                <message key="name.invalidPattern"
                         value="Class type name ''{0}'' must match pattern ''{1}''."/>
            </module>
            <module name="MethodTypeParameterName">
                <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
                <message key="name.invalidPattern"
                         value="Method type name ''{0}'' must match pattern ''{1}''."/>
            </module>
            <module name="NoFinalizer"/>-->
    <module name="GenericWhitespace">
      <message key="ws.followed"
               value="GenericWhitespace ''{0}'' is followed by whitespace."/>
      <message key="ws.preceded"
               value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
      <message key="ws.illegalFollow"
               value="GenericWhitespace ''{0}'' should followed by whitespace."/>
      <message key="ws.notPreceded"
               value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
    </module>
    <module name="Indentation">
      <property name="basicOffset" value="2"/>
      <property name="braceAdjustment" value="0"/>
      <property name="caseIndent" value="2"/>
      <property name="throwsIndent" value="4"/>
      <property name="lineWrappingIndentation" value="4"/>
      <property name="arrayInitIndent" value="2"/>
    </module>
    <!--<module name="AbbreviationAsWordInName">
        <property name="ignoreFinal" value="false"/>
        <property name="allowedAbbreviationLength" value="1"/>
    </module>
    <module name="OverloadMethodsDeclarationOrder"/>
    <module name="VariableDeclarationUsageDistance"/>-->
    <module name="CustomImportOrder">
      <property name="standardPackageRegExp" value="^java\."/>
      <property name="specialImportsRegExp" value="^javax\."/>
      <property name="sortImportsInGroupAlphabetically" value="true"/>
      <property name="customImportOrderRules"
                value="STATIC###SAME_PACKAGE(2)###THIRD_PARTY_PACKAGE###STANDARD_JAVA_PACKAGE###SPECIAL_IMPORTS"/>
    </module>

    <!-- Import should be explicit, and only from pure java packages.
           But we allow imports that are only used in javadoc. -->
    <module name="UnusedImports">
      <property name="processJavadoc" value="true"/>
    </module>

    <module name="RedundantImport"/>
    <module name="MethodParamPad"/>
    <module name="OperatorWrap">
      <property name="option" value="NL"/>
      <property name="tokens"
                value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR, LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR "/>
    </module>
    <module name="AnnotationLocation">
      <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
    </module>
    <module name="AnnotationLocation">
      <property name="tokens" value="VARIABLE_DEF"/>
      <property name="allowSamelineMultipleAnnotations" value="true"/>
    </module>
    <module name="NonEmptyAtclauseDescription"/>
    <module name="JavadocTagContinuationIndentation"/>
    <!--Causes lots of "first sentence of javadoc is not followed by a period"-->
    <!--<module name="SummaryJavadoc">-->
    <!--<property name="forbiddenSummaryFragments" value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>-->
    <!--</module>-->
    <module name="JavadocParagraph"/>
    <module name="AtclauseOrder"/>
    <!-- This requires to place @Override for all the overridden methods so it does not complain on missing javadocs
      <module name="JavadocMethod">
          <property name="scope" value="public"/>
          <property name="allowMissingParamTags" value="true"/>
          <property name="allowMissingThrowsTags" value="true"/>
          <property name="allowMissingReturnTag" value="true"/>
          <property name="minLineCount" value="2"/>
          <property name="allowedAnnotations" value="Override, Test"/>
          <property name="allowThrowsTagsForSubclasses" value="true"/>
      </module>-->
    <!--<module name="MethodName">
        <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
        <message key="name.invalidPattern"
                 value="Method name ''{0}'' must match pattern ''{1}''."/>
    </module>-->
    <!--<module name="SingleLineJavadoc">-->
    <!--<property name="ignoreInlineTags" value="false"/>-->
    <!--</module>-->
    <!--<module name="EmptyCatchBlock">-->
    <!--<property name="exceptionVariableName" value="expected"/>-->
    <!--</module>-->
    <module name="CommentsIndentation"/>

    <module name="Regexp">
      <!-- known typos see #472 -->
      <property name="format" value="(?i)\b(occur[^rs\s\W]|ocur[rs]|unkwon|didnt|doesnt|identifer|guarentee|seperated|wether|useage|gven|identifer|functin|tranlate|desribe)"/>
      <property name="illegalPattern" value="true"/>
    </module>
  </module>

  <!-- Enforce License Header -->
  <module name="RegexpHeader">
    <property
        name="header"
        value="/\*\n \* Copyright \(c\) 20\d\d, PostgreSQL Global Development Group\n \* See the LICENSE file in the project root for more information.\n \*/"
    />
    <property name="fileExtensions" value="java"/>
  </module>
</module>
