<?xml version="1.0"?>

<!DOCTYPE module PUBLIC

"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"

"https://checkstyle.org/dtds/configuration_1_3.dtd">

<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="TreeWalker">

<module name="OuterTypeFilename"/>

<module name="IllegalTokenText">

<property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>

<property name="format"

value="\\u00(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="Consider using special escape sequence instead of octal value or Unicode escaped value."/>

</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="RedundantImport"/>

<module name="OneTopLevelClass"/>

<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="MultipleVariableDeclarations"/>

<module name="ArrayTypeStyle"/>

<!-- <!-\- This rule conflicts with Error Prone's exhaustiveness checking. -\-> -->

<!-- <module name="MissingSwitchDefault"/> -->

<module name="FallThrough"/>

<module name="UpperEll"/>

<module name="ModifierOrder"/>

<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="TypeName">

<message key="name.invalidPattern"

value="Type name ''{0}'' must match pattern ''{1}''."/>

</module>

<module name="MemberName">

<property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$"/>

<message key="name.invalidPattern"

value="Member name ''{0}'' must match pattern ''{1}''."/>

</module>

<module name="ParameterName">

<property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>

<message key="name.invalidPattern"

value="Parameter name ''{0}'' must match pattern ''{1}''."/>

</module>

<module name="LambdaParameterName">

<property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>

<message key="name.invalidPattern"

value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>

</module>

<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="LocalVariableName">

<property name="tokens" value="VARIABLE_DEF"/>

<property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>

<message key="name.invalidPattern"

value="Local variable 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="InterfaceTypeParameterName">

<property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>

<message key="name.invalidPattern"

value="Interface type name ''{0}'' must match pattern ''{1}''."/>

</module>

<module name="NoFinalizer"/>

<!-- <!-\- Checkstyle indentation rules conflict with google-java-format: -\-> -->

<!-- <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"/>

<!-- <!-\- Many unit tests define all variables at the start of the method. -\-> -->

<!-- <module name="VariableDeclarationUsageDistance"/> -->

<module name="CustomImportOrder">

<property name="sortImportsInGroupAlphabetically" value="true"/>

<property name="separateLineBetweenGroups" value="true"/>

<property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/>

</module>

<module name="AnnotationLocation">

<property name="id" value="AnnotationLocationMostCases"/>

<property name="tokens"

value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>

</module>

<module name="AnnotationLocation">

<property name="id" value="AnnotationLocationVariables"/>

<property name="tokens" value="VARIABLE_DEF"/>

<property name="allowSamelineMultipleAnnotations" value="true"/>

</module>

<module name="NonEmptyAtclauseDescription"/>

<module name="JavadocTagContinuationIndentation"/>

<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">

<property name="tagOrder" value="@param, @return, @throws, @deprecated"/>

<property name="target"

value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>

</module>

<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"/>

<!-- <!-\- Too restrictive for tests -\-> -->

<!-- <property name="allowedAnnotations" value="Override, Test"/ -->

<property name="allowedAnnotations"

value="Override, Test, Before, After, BeforeClass, AfterClass, Setup,

TearDown"/>

<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">

<!-- <!-\- Wrong interpretation of the style guide; -\-> -->

<!-- <property name="ignoreInlineTags" value="false"/ -->

</module>

<module name="EmptyCatchBlock">

<property name="exceptionVariableName" value="expected"/>

</module>

<module name="SuppressWarningsHolder"/>

<!-- <!-\- Enable ImportControl later. -\-> -->

<!-- module name="ImportControl" -->

<!-- property name="file" value="${rootDir}/buildscripts/import-control.xml"/ -->

<!-- property name="path" value="^.*[\\/]src[\\/]main[\\/]java[\\/].*$"/ -->

<!-- /module -->

<module name="SuppressionCommentFilter"/>

</module>

<module name="SuppressWarningsFilter"/>

<module name="SuppressionFilter">

<property name="file" value="${config_loc}/checkstyle-suppressions.xml"/>

<property name="optional" value="false"/>

</module>

</module>