checkstyle.xml

<?xml version="1.0"?>
<!-- 
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 * 
 * Licensed 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
    "-//Puppy Crawl//DTD Check Configuration 1.2//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_2.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 for Javadoc comments.                     -->
        <!-- See http://checkstyle.sf.net/config_javadoc.html -->
        <module name="JavadocMethod"/>
        <module name="JavadocType"/>
        <!-- module name="JavadocVariable"/ -->
        <module name="JavadocStyle"/>


        <!-- Checks for Naming Conventions.                  -->
        <!-- See http://checkstyle.sf.net/config_naming.html -->
        <module name="ConstantName"/>
        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MemberName"/>
        <module name="MethodName"/>
        <module name="PackageName"/>
        <module name="ParameterName"/>
        <module name="StaticVariableName"/>
        <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 ${basedir} property to allow Checkstyle to be run  -->
            <!-- from any directory within a project. See property      -->
            <!-- expansion,                                             -->
            <!-- http://checkstyle.sf.net/config.html#properties        -->
            <!-- <property                                              -->
            <!--     name="headerFile"                                  -->
            <!--     value="${basedir}/java.header"/>                   -->
        <!-- </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="LineLength">
        	<property name="max" value="120"/>
        </module>
        <module name="MethodLength"/>
        <module name="ParameterNumber"/>


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

        <!-- fix for checkstyle and generics from http://sourceforge.net/tracker/index.php?func=detail&aid=1374798&group_id=29721&atid=397078 -->
        <module name="NoWhitespaceAfter">
          <!-- Default tokens and additional GENERIC_START -->
          <property name="tokens" value="ARRAY_INIT, BNOT,
          DEC, DOT, INC, LNOT,
          UNARY_MINUS, UNARY_PLUS, GENERIC_START"/>
        </module>

        <module name="NoWhitespaceBefore">
          <!-- Default tokens and additional GENERIC_START
          and GENERIC_END -->
          <property name="tokens" value="SEMI, POST_DEC,
          POST_INC,
          GENERIC_START, GENERIC_END"/>
        </module>

        <module name="WhitespaceAfter">
          <!-- Default tokens and additional GENERIC_END -->
          <property name="tokens" value="COMMA, SEMI,
          TYPECAST, GENERIC_END"/>
        </module>

        <module name="WhitespaceAround">
          <!-- Default tokens without GENERIC_START and
          GENERIC_END -->
          <property name="tokens" value="ASSIGN, BAND,
          BAND_ASSIGN, BOR,
          BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN,
          COLON, DIV,
          DIV_ASSIGN, EQUAL, GE, GT, LAND, LCURLY, LE,
          LITERAL_ASSERT,
          LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE,
          LITERAL_FINALLY,
          LITERAL_FOR, LITERAL_IF, LITERAL_RETURN,
          LITERAL_SYNCHRONIZED,
          LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS,
          MINUS_ASSIGN, MOD,
          MOD_ASSIGN, NOT_EQUAL, PLUS, PLUS_ASSIGN,
          QUESTION, RCURLY, SL,
          SLIST, SL_ASSIGN, SR, SR_ASSIGN, STAR, STAR_ASSIGN,
          TYPE_EXTENSION_AND, WILDCARD_TYPE"/>
        </module>

        <!-- end -->

        <!-- 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="LeftCurly"/>
        <module name="NeedBraces"/>
        <module name="RightCurly"/>


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

        <!-- Checks for class design                         -->
        <!-- See http://checkstyle.sf.net/config_design.html -->
        <!--module name="DesignForExtension"/ -->
        <module name="FinalClass"/>
        <module name="HideUtilityClassConstructor"/>
        <module name="InterfaceIsType"/>
        <!--module name="VisibilityModifier"/ -->


        <!-- 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>