<?xml version="1.0"?>

<!--
  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
    "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
    "http://checkstyle.org/dtds/configuration_1_3.dtd">
<module name="Checker">
    <property name="charset" value="UTF-8"/>

    <property name="fileExtensions" value="java"/>

    <module name="BeforeExecutionExclusionFileFilter">
        <property name="fileNamePattern" value=".*[\\/](test|internal)[\\/].*$"/>
    </module>

    <!-- SuppressWarning Filter. https://checkstyle.sourceforge.io/config_filters.html#SuppressWarningsFilter -->
    <module name="SuppressWarningsFilter"/>

    <!--
        Checks that each Java package has a Javadoc file used for commenting.
        By default it only allows a package-info.java file.
        See: https://checkstyle.org/config_javadoc.html#JavadocPackage
    -->
    <module name="JavadocPackage" />

    <module name="TreeWalker">
        <!-- Handler for SuppressWarning Filter. https://checkstyle.sourceforge.io/config_filters.html#SuppressWarningsFilter -->
        <module name="SuppressWarningsHolder"/>

        <!--
            Javdoc style checks.
        -->

        <!--
            Checks the order of javadoc block-tags or javadoc tags.
            See: https://checkstyle.org/config_javadoc.html#AtclauseOrder
        -->
        <module name="AtclauseOrder"/>

        <!--
            Checks that Javadocs are located at the correct position.
            See: https://checkstyle.org/config_javadoc.html#InvalidJavadocPosition
        -->
        <module name="InvalidJavadocPosition"/>

        <!--
           Checks that a javadoc block tag (starts with @) appears only at the beginning of a line,
           ignoring leading asterisks and white space.
           This check ignores block tags in comments and inside inline tags {@code } and {@literal }.
           See: https://checkstyle.org/config_javadoc.html#JavadocBlockTagLocation
       -->
        <module name="JavadocBlockTagLocation">
            <!-- default tags -->
            <property name="tags" value="author, deprecated, exception, hidden"/>
            <property name="tags" value="param, provides, return, see, serial"/>
            <property name="tags" value="serialData, serialField, since, throws"/>
            <property name="tags" value="uses, version"/>
            <!-- additional tags can be used in the project -->
            <property name="tags" value="noinspection"/>
        </module>

        <!--
            Checks that the Javadoc content begins from the same position for all Javadoc comments in the project.
            Any leading asterisks and spaces are not counted as the beginning of the content and are therefore ignored.
            https://checkstyle.org/config_javadoc.html#JavadocContentLocation
        -->
        <module name="JavadocContentLocationCheck"/>

        <!--
            Checks the Javadoc of a method or constructor.
            See: https://checkstyle.org/config_javadoc.html#JavadocMethod
        -->
        <module name="JavadocMethod">
            <property name="validateThrows" value="true"/>
        </module>

        <!--
            Checks if the javadoc has leading asterisks on each line.
            See: https://checkstyle.org/config_javadoc.html#JavadocMissingLeadingAsterisk
        -->
        <module name="JavadocMissingLeadingAsterisk"/>

        <!--
            Checks that there is at least one whitespace after the leading asterisk.
            See: https://checkstyle.org/config_javadoc.html#JavadocMissingWhitespaceAfterAsterisk
        -->
        <module name="JavadocMissingWhitespaceAfterAsterisk"/>

        <!--
           Validates Javadoc comments to help ensure they are well formed.
           See: https://checkstyle.org/config_javadoc.html#JavadocStyle
        -->
        <module name="JavadocStyle">
            <property name="checkEmptyJavadoc" value="true"/>
        </module>

        <!--
            Checks the Javadoc comments for type definitions.
            See: https://checkstyle.org/config_javadoc.html#JavadocType
        -->
        <module name="JavadocType">
            <property name="allowUnknownTags" value="true"/>
        </module>

        <!--
            Checks that a variable has a Javadoc comment. Ignores serialVersionUID fields.
            See: https://checkstyle.org/config_javadoc.html#JavadocVariable
        -->
        <module name="JavadocVariable"/>

        <!--
            Checks for missing Javadoc comments for a method or constructor.
            See: https://checkstyle.org/config_javadoc.html#MissingJavadocMethod
        -->
        <module name="MissingJavadocMethod">
            <property name="allowedAnnotations" value=""/>
        </module>

        <!--
           Checks for missing Javadoc comments for interface, and annotation interface definitions.
           See: https://checkstyle.org/config_javadoc.html#MissingJavadocType
        -->
        <module name="MissingJavadocType"/>

        <!--
            Checks that the block tag is followed by description.
            See: https://checkstyle.org/config_javadoc.html#NonEmptyAtclauseDescription
        -->
        <module name="NonEmptyAtclauseDescription"/>

        <!--
              Checks that one blank line before the block tag if it is present in Javadoc.
              See: https://checkstyle.org/config_javadoc.html#RequireEmptyLineBeforeBlockTagGroup
          -->
        <module name="RequireEmptyLineBeforeBlockTagGroup"/>

        <!--
            Checks that a Javadoc block can fit in a single line and doesn't contain block tags.
            See: https://checkstyle.org/config_javadoc.html#SingleLineJavadoc
        -->
        <module name="SingleLineJavadoc">
            <property name="ignoredTags" value="@inheritDoc, @see"/>
        </module>
    </module>
</module>