com.puppycrawl.tools.checkstyle.api

Class AbstractCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.AbstractCheck

All Implemented Interfaces:

Configurable, Contextualizable

Direct Known Subclasses:

AbbreviationAsWordInNameCheck, AbstractClassCouplingCheck, AbstractClassNameCheck, AbstractComplexityCheck, AbstractDeclarationCollector, AbstractFormatCheck, AbstractIllegalCheck, AbstractIllegalMethodCheck, AbstractJavadocCheck, AbstractNameCheck, AbstractNestedDepthCheck, AbstractOptionCheck, AbstractParenPadCheck, AbstractSuperCheck, AbstractTypeAwareCheck, AnnotationLocationCheck, AnnotationUseStyleCheck, AnonInnerLengthCheck, ArrayTrailingCommaCheck, ArrayTypeStyleCheck, AvoidEscapedUnicodeCharactersCheck, AvoidInlineConditionalsCheck, AvoidNestedBlocksCheck, AvoidStarImportCheck, AvoidStaticImportCheck, BooleanExpressionComplexityCheck, CommentsIndentationCheck, CovariantEqualsCheck, CustomImportOrderCheck, CyclomaticComplexityCheck, DeclarationOrderCheck, DefaultComesLastCheck, DescendantTokenCheck, DesignForExtensionCheck, EmptyBlockCheck, EmptyCatchBlockCheck, EmptyForInitializerPadCheck, EmptyForIteratorPadCheck, EmptyLineSeparatorCheck, EmptyStatementCheck, EqualsAvoidNullCheck, EqualsHashCodeCheck, ExecutableStatementCountCheck, ExplicitInitializationCheck, FallThroughCheck, FileContentsHolder, FinalClassCheck, FinalLocalVariableCheck, FinalParametersCheck, GenericWhitespaceCheck, HiddenFieldCheck, HideUtilityClassConstructorCheck, IllegalCatchCheck, IllegalImportCheck, IllegalInstantiationCheck, IllegalThrowsCheck, IllegalTokenCheck, IllegalTokenTextCheck, IllegalTypeCheck, ImportControlCheck, ImportOrderCheck, IndentationCheck, InnerAssignmentCheck, InnerTypeLastCheck, InterfaceIsTypeCheck, JavadocStyleCheck, JavadocTypeCheck, JavadocVariableCheck, JavaNCSSCheck, LeftCurlyCheck, LineLengthCheck, MagicNumberCheck, MethodCountCheck, MethodLengthCheck, MethodParamPadCheck, MissingCtorCheck, MissingDeprecatedCheck, MissingOverrideCheck, MissingSwitchDefaultCheck, ModifiedControlVariableCheck, ModifierOrderCheck, MultipleStringLiteralsCheck, MultipleVariableDeclarationsCheck, MutableExceptionCheck, NeedBracesCheck, NestedForDepthCheck, NestedIfDepthCheck, NestedTryDepthCheck, NoCloneCheck, NoFinalizerCheck, NoLineWrapCheck, NoWhitespaceAfterCheck, NoWhitespaceBeforeCheck, NPathComplexityCheck, OneStatementPerLineCheck, OneTopLevelClassCheck, OperatorWrapCheck, OuterTypeFilenameCheck, OuterTypeNumberCheck, OverloadMethodsDeclarationOrderCheck, PackageAnnotationCheck, PackageDeclarationCheck, PackageNameCheck, ParameterAssignmentCheck, ParameterNumberCheck, RedundantImportCheck, RedundantModifierCheck, RegexpCheck, RegexpSinglelineJavaCheck, RequireThisCheck, ReturnCountCheck, RightCurlyCheck, SeparatorWrapCheck, SimplifyBooleanExpressionCheck, SimplifyBooleanReturnCheck, SingleSpaceSeparatorCheck, StringLiteralEqualityCheck, SuppressWarningsCheck, SuppressWarningsHolder, ThrowsCountCheck, TodoCommentCheck, TrailingCommentCheck, UncommentedMainCheck, UnnecessaryParenthesesCheck, UnusedImportsCheck, UpperEllCheck, VariableDeclarationUsageDistanceCheck, VisibilityModifierCheck, WhitespaceAfterCheck, WhitespaceAroundCheck, WriteTagCheck

public abstract class AbstractCheck
extends AbstractViolationReporter

The base class for checks.

See Also:

Writing your own checks

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.ClassLoader	classLoader The class loader to load external classes.
private static int	DEFAULT_TAB_WIDTH Default tab width for column reporting.
private FileContents	fileContents The current file contents.
private LocalizedMessages	messages The object for collecting messages.
private int	tabWidth The tab width for column reporting.
private java.util.Set<java.lang.String>	tokens The tokens the check is interested in.

Constructor Summary

Constructors

Constructor and Description
AbstractCheck()

Method Summary

Modifier and Type	Method and Description
void	beginTree(DetailAST rootAST) Called before the starting to process a tree.
void	destroy() Destroy the check.
void	finishTree(DetailAST rootAST) Called after finished processing a tree.
abstract int[]	getAcceptableTokens() The configurable token set.
java.lang.ClassLoader	getClassLoader() Returns the class loader associated with the tree.
abstract int[]	getDefaultTokens() Returns the default token a check is interested in.
FileContents	getFileContents() Returns the file contents associated with the tree.
java.lang.String	getLine(int index) Returns the line associated with the tree.
java.lang.String[]	getLines() Returns the lines associated with the tree.
abstract int[]	getRequiredTokens() The tokens that this check must be registered for.
protected int	getTabWidth() Get tab width to report errors with.
java.util.Set<java.lang.String>	getTokenNames() Returns the tokens registered for the check.
void	init() Initialize the check.
boolean	isCommentNodesRequired() Whether comment nodes are required or not.
void	leaveToken(DetailAST ast) Called after all the child nodes have been process.
void	log(int lineNo, int colNo, java.lang.String key, java.lang.Object... args) Log a message that has column information.
void	log(int line, java.lang.String key, java.lang.Object... args) Log a message that has no column information.
void	setClassLoader(java.lang.ClassLoader classLoader) Set the class loader associated with the tree.
void	setFileContents(FileContents contents) Set the file contents associated with the tree.
void	setMessages(LocalizedMessages messages) Set the global object used to collect messages.
void	setTabWidth(int tabWidth) Set the tab width to report errors with.
void	setTokens(java.lang.String... strRep) Adds a set of tokens the check is interested in.
void	visitToken(DetailAST ast) Called to process a token.

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, log, setId, setSeverity

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

configure, contextualize, finishLocalSetup, getConfiguration, setupChild

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_TAB_WIDTH

private static final int DEFAULT_TAB_WIDTH

Default tab width for column reporting.

See Also:

Constant Field Values

tokens

private final java.util.Set<java.lang.String> tokens

The tokens the check is interested in.

fileContents

private FileContents fileContents

The current file contents.

messages

private LocalizedMessages messages

The object for collecting messages.

tabWidth

private int tabWidth

The tab width for column reporting.

classLoader

private java.lang.ClassLoader classLoader

The class loader to load external classes. Not initialized as this must be set by my creator.

Constructor Detail

AbstractCheck

public AbstractCheck()

Method Detail

getDefaultTokens

public abstract int[] getDefaultTokens()

Returns the default token a check is interested in. Only used if the configuration for a check does not define the tokens.

Returns:

the default tokens

See Also:

TokenTypes

getAcceptableTokens

public abstract int[] getAcceptableTokens()

The configurable token set. Used to protect Checks against malicious users who specify an unacceptable token set in the configuration file. The default implementation returns the check's default tokens.

Returns:

the token set this check is designed for.

See Also:

TokenTypes

getRequiredTokens

public abstract int[] getRequiredTokens()

The tokens that this check must be registered for.

Returns:

the token set this must be registered for.

See Also:

TokenTypes

isCommentNodesRequired

public boolean isCommentNodesRequired()

Whether comment nodes are required or not.

Returns:

false as a default value.

setTokens

public final void setTokens(java.lang.String... strRep)

Adds a set of tokens the check is interested in.

Parameters:

strRep - the string representation of the tokens interested in

getTokenNames

public final java.util.Set<java.lang.String> getTokenNames()

Returns the tokens registered for the check.

Returns:

the set of token names

setMessages

public final void setMessages(LocalizedMessages messages)

Set the global object used to collect messages.

Parameters:

messages - the messages to log with

init

public void init()

Initialize the check. This is the time to verify that the check has everything required to perform it job.

destroy

public void destroy()

Destroy the check. It is being retired from service.

beginTree

public void beginTree(DetailAST rootAST)

Called before the starting to process a tree. Ideal place to initialize information that is to be collected whilst processing a tree.

Parameters:

rootAST - the root of the tree

finishTree

public void finishTree(DetailAST rootAST)

Called after finished processing a tree. Ideal place to report on information collected whilst processing a tree.

Parameters:

rootAST - the root of the tree

visitToken

public void visitToken(DetailAST ast)

Called to process a token.

Parameters:

ast - the token to process

leaveToken

public void leaveToken(DetailAST ast)

Called after all the child nodes have been process.

Parameters:

ast - the token leaving

getLines

public final java.lang.String[] getLines()

Returns the lines associated with the tree.

Returns:

the file contents

getLine

public final java.lang.String getLine(int index)

Returns the line associated with the tree.

Parameters:

index - index of the line

Returns:

the line from the file contents

setFileContents

public final void setFileContents(FileContents contents)

Set the file contents associated with the tree.

Parameters:

contents - the manager

getFileContents

public final FileContents getFileContents()

Returns the file contents associated with the tree.

Returns:

the file contents

setClassLoader

public final void setClassLoader(java.lang.ClassLoader classLoader)

Set the class loader associated with the tree.

Parameters:

classLoader - the class loader

getClassLoader

public final java.lang.ClassLoader getClassLoader()

Returns the class loader associated with the tree.

Returns:

the class loader

getTabWidth

protected final int getTabWidth()

Get tab width to report errors with.

Returns:

the tab width to report errors with

setTabWidth

public final void setTabWidth(int tabWidth)

Set the tab width to report errors with.

Parameters:

tabWidth - an int value

log

public final void log(int line,
                      java.lang.String key,
                      java.lang.Object... args)

Description copied from class: AbstractViolationReporter

Log a message that has no column information.

Specified by:

log in class AbstractViolationReporter

Parameters:

line - the line number where the error was found

key - the message that describes the error

args - the details of the message

See Also:

MessageFormat

log

public final void log(int lineNo,
                      int colNo,
                      java.lang.String key,
                      java.lang.Object... args)

Description copied from class: AbstractViolationReporter

Log a message that has column information.

Specified by:

log in class AbstractViolationReporter

Parameters:

lineNo - the line number where the error was found

colNo - the column number where the error was found

key - the message that describes the error

args - the details of the message

See Also:

MessageFormat