<?xml version="1.0" encoding="UTF-8"?>
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 regarding copyright ownership.  The ASF licenses this file
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 under the License.
-->

<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.1//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_1.dtd">

<!--

  Checkstyle configuration that checks the sun coding conventions from:

    - the Java Language Specification at
      http://java.sun.com/docs/books/jls/second_edition/html/index.html

    - the Sun Code Conventions at http://java.sun.com/docs/codeconv/

    - the Javadoc guidelines at
      http://java.sun.com/j2se/javadoc/writingdoccomments/index.html

    - the JDK Api documentation http://java.sun.com/j2se/docs/api/index.html

    - some best practices

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

  Most Checks are configurable, be sure to consult the documentation.

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

  Finally, it is worth reading the documentation.

-->

<module name="Checker">

    <!-- Checks that a package.html file exists for each package.     -->
    <!-- See http://checkstyle.sf.net/config_javadoc.html#PackageHtml -->
    <module name="PackageHtml"/>

    <!-- Checks whether files end with a new line.                        -->
    <!-- See http://checkstyle.sf.net/config_misc.html#NewlineAtEndOfFile -->
    <module name="NewlineAtEndOfFile"/>

    <!-- Checks that property files contain the same keys.         -->
    <!-- See http://checkstyle.sf.net/config_misc.html#Translation -->
    <module name="Translation"/>

    <module name="TreeWalker">

        <property name="cacheFile" value="${checkstyle.cache.file}"/>

        <!-- ************************************************************** -->
        <!-- Checks that are different from the sun coding conventions ones -->
        <!-- ************************************************************** -->
        <property name="tabWidth" value="4"/>
        <module name="LeftCurly">
          <property name="option" value="nl"/>
        </module>
        <module name="RightCurly">
          <property name="option" value="alone"/>
        </module>
        <module name="LineLength">
          <property name="ignorePattern" value="@version"/>
          <property name="max" value="132"/>
        </module>
        <module name="MemberName">
          <property name="format" value="^[a-z]+_*[a-zA-Z0-9]*$"/>
        </module>
        <module name="StaticVariableName">
          <property name="format" value="^[a-z]+_*[a-zA-Z0-9]*$"/>
        </module>
        <module name="ConstantName">
          <property name="format" value="^(([A-Z][A-Z0-9]*(_[A-Z0-9]+)*)|log)$"/>
        </module>
        <module name="ParameterName">
          <property name="format" value="^[a-z]+_*[a-zA-Z0-9]*$"/>
        </module>

        <!-- ************************************************************** -->
        <!-- Default Sun coding conventions checks                          -->
        <!-- ************************************************************** -->

        <!-- Checks for Javadoc comments.                     -->
        <!-- See http://checkstyle.sf.net/config_javadoc.html -->
        <module name="JavadocMethod">
          <property name="excludeScope" value="private"/>
        </module>
        <module name="JavadocType"/>
        <module name="JavadocVariable"/>


        <!-- Checks for Naming Conventions.                  -->
        <!-- See http://checkstyle.sf.net/config_naming.html -->
        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MethodName"/>
        <module name="PackageName"/>
        <module name="TypeName"/>


        <!-- Checks for Headers                              -->
        <!-- See http://checkstyle.sf.net/config_header.html -->
        <module name="Header">
            <!-- The follow property value demonstrates the ability     -->
            <!-- to have access to ANT properties. In this case it uses -->
            <!-- the ${basedir} property to allow Checkstyle to be run  -->
            <!-- from any directory within a project.                   -->
            <property name="headerFile" value="${checkstyle.header.file}"/>
            <property name="ignoreLines" value="1,6"/>
        </module>

        <!-- Following interprets the header file as regular expressions. -->
        <!-- <module name="RegexpHeader"/>                                -->


        <!-- Checks for imports                              -->
        <!-- See http://checkstyle.sf.net/config_import.html -->
        <module name="AvoidStarImport"/>
        <module name="IllegalImport"/> <!-- defaults to sun.* packages -->
        <module name="RedundantImport"/>
        <module name="UnusedImports"/>


        <!-- Checks for Size Violations.                    -->
        <!-- See http://checkstyle.sf.net/config_sizes.html -->
        <module name="FileLength"/>
        <module name="MethodLength"/>
        <module name="ParameterNumber"/>


        <!-- Checks for whitespace                               -->
        <!-- See http://checkstyle.sf.net/config_whitespace.html -->
        <module name="EmptyForIteratorPad"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="OperatorWrap"/>
        <module name="ParenPad"/>
        <module name="TabCharacter"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>


        <!-- Modifier Checks                                    -->
        <!-- See http://checkstyle.sf.net/config_modifiers.html -->
        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>


        <!-- Checks for blocks. You know, those {}'s         -->
        <!-- See http://checkstyle.sf.net/config_blocks.html -->
        <module name="AvoidNestedBlocks"/>
        <module name="EmptyBlock"/>

        <module name="NeedBraces"/>


        <!-- Checks for common coding problems               -->
        <!-- See http://checkstyle.sf.net/config_coding.html -->
        <module name="DoubleCheckedLocking"/>    <!-- MY FAVOURITE -->
        <module name="EmptyStatement"/>
        <module name="EqualsHashCode"/>
        <module name="FallThrough"/>
        <module name="HiddenField"/>
        <module name="IllegalInstantiation"/>
        <module name="InnerAssignment"/>
        <module name="MagicNumber"/>
        <module name="MissingSwitchDefault"/>
<!--        <module name="OneMethodPrivateField" /> -->
        <module name="RedundantThrows"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>

        <!-- Checks for class design                         -->
        <!-- See http://checkstyle.sf.net/config_design.html -->
        <module name="FinalClass"/>
        <module name="HideUtilityClassConstructor"/>
        <module name="VisibilityModifier">
        <module name="MissingSwitchDefault"/>
          <property name="protectedAllowed" value="true"/>
        </module>


        <!-- Miscellaneous other checks.                   -->
        <!-- See http://checkstyle.sf.net/config_misc.html -->
        <module name="ArrayTypeStyle"/>
<!--         <module name="FinalParameters"/> -->
        <module name="GenericIllegalRegexp">
            <property name="format" value="\s+$"/>
            <property name="message" value="Line has trailing spaces."/>
        </module>
        <module name="TodoComment"/>
        <module name="UpperEll"/>

    </module>

</module>
