pmd-rules.xml

<?xml version="1.0"?>

<ruleset name="Custom Rules"
    xmlns="http://pmd.sourceforge.net/ruleset/2.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 https://pmd.sourceforge.io/ruleset_2_0_0.xsd">

    <description>
       Custom rules for checking RocksDB
    </description>


    <!-- Use PMD rules from a few sets, and then make exceptions -->
    <rule ref="category/java/codestyle.xml">
        <!-- These problems are acceptable in perpertuity -->
        <exclude name="AvoidUsingNativeCode"/>
        <exclude name="LongVariable"/>
        <exclude name="ShortVariable"/>
        <exclude name="ShortClassName"/>
        <exclude name="OnlyOneReturn"/>
        <exclude name="FieldNamingConventions"/>
        <exclude name="FormalParameterNamingConventions"/>
        <exclude name="LinguisticNaming"/>
        <exclude name="ConfusingTernary"/>
        <!-- These could be fixed if we take the time to do it -->
        <exclude name="CommentDefaultAccessModifier"/>
        <exclude name="FieldDeclarationsShouldBeAtStartOfClass"/>
        <exclude name="FinalParameterInAbstractMethod"/>
        <exclude name="EmptyMethodInAbstractClassShouldBeAbstract"/>
        <exclude name="MethodArgumentCouldBeFinal"/>
        <exclude name="LocalVariableNamingConventions"/>
        <exclude name="LocalVariableCouldBeFinal"/>
        <exclude name="ControlStatementBraces"/>
        <exclude name="CallSuperInConstructor"/>
        <exclude name="ControlStatementBraces"/>
        <exclude name="MethodNamingConventions"/>
        <exclude name="UselessParentheses"/>
        <exclude name="AtLeastOneConstructor"/>
    </rule>
    <rule ref="category/java/errorprone.xml">
        <exclude name="AvoidFieldNameMatchingMethodName"/>
    </rule>
    <rule ref="category/java/errorprone.xml/AvoidLiteralsInIfCondition">
        <properties>
            <property name="ignoreMagicNumbers" value="-1,0,1,2,0x0,0x1,0xff" />
            <property name="ignoreExpressions" value="true,false" />
        </properties>
    </rule>
    <rule ref="category/java/bestpractices.xml">
        <exclude name="UseVarargs"/>
    </rule>

    <rule ref="category/java/errorprone.xml/CloseResource">
        <properties>
            <property name="types" value="java.lang.AutoCloseable,java.sql.Connection,java.sql.Statement,java.sql.ResultSet" />
            <property name="closeAsDefaultTarget" value="true" />
            <!-- we allow these org.rocksdb types as generally our API is opening them for the user. -->
            <property name="allowedResourceTypes" value="java.io.ByteArrayOutputStream|java.io.ByteArrayInputStream|java.io.StringWriter|java.io.CharArrayWriter|java.util.stream.Stream|java.util.stream.IntStream|java.util.stream.LongStream|java.util.stream.DoubleStream" />
            <property name="closeNotInFinally" value="false" />
        </properties>
    </rule>

</ruleset>