Package com.puppycrawl.tools.checkstyle.checks.metrics

Class AbstractClassCouplingCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.AbstractAutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.AbstractCheck

com.puppycrawl.tools.checkstyle.checks.metrics.AbstractClassCouplingCheck

All Implemented Interfaces:

Configurable, Contextualizable

Direct Known Subclasses:

ClassDataAbstractionCouplingCheck, ClassFanOutComplexityCheck

public abstract class AbstractClassCouplingCheck
extends AbstractCheck

Base class for coupling calculation.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	AbstractClassCouplingCheck.ClassContext	Encapsulates information about class coupling.

Nested classes/interfaces inherited from class com.puppycrawl.tools.checkstyle.AbstractAutomaticBean

AbstractAutomaticBean.OutputStreamOptions

Field Summary

Fields

Modifier and Type	Field	Description
private static Pattern	BRACKET_PATTERN	Pattern to match brackets in a full type name.
private Deque<AbstractClassCouplingCheck.ClassContext>	classesContexts	Stack of class contexts.
private static Set<String>	DEFAULT_EXCLUDED_CLASSES	Class names to ignore.
private static Set<String>	DEFAULT_EXCLUDED_PACKAGES	Package names to ignore.
private static char	DOT	A package separator - "."
private List<Pattern>	excludeClassesRegexps	Specify user-configured regular expressions to ignore classes.
private Set<String>	excludedClasses	Specify user-configured class names to ignore.
private Set<String>	excludedPackages	Specify user-configured packages to ignore.
private Map<String,String>	importedClassPackages	A map of (imported class name -> class name with package) pairs.
private int	max	Specify the maximum threshold allowed.
private String	packageName	Current file package.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractClassCouplingCheck(int defaultMax)	Creates new instance of the check.

Method Summary

Modifier and Type	Method	Description
void	beginTree(DetailAST ast)	Called before the starting to process a tree.
private void	checkCurrentClassAndRestorePrevious()	Restores previous context.
private void	createNewClassContext(String className, DetailAST ast)	Creates new inner class context with given name and location.
int[]	getDefaultTokens()	Returns the default token a check is interested in.
protected abstract String	getLogMessageId()	Returns message key we use for log violations.
private void	leaveClassDef()	Restores previous context.
void	leaveToken(DetailAST ast)	Called after all the child nodes have been process.
private void	registerImport(DetailAST imp)	Registers given import.
void	setExcludeClassesRegexps(String... from)	Setter to specify user-configured regular expressions to ignore classes.
void	setExcludedClasses(String... excludedClasses)	Setter to specify user-configured class names to ignore.
void	setExcludedPackages(String... excludedPackages)	Setter to specify user-configured packages to ignore.
void	setMax(int max)	Setter to specify the maximum threshold allowed.
private void	visitAnnotationType(DetailAST annotationAST)	Visit ANNOTATION literal and get its type to referenced classes of context.
private void	visitClassDef(DetailAST classDef)	Creates new context for a given class.
private void	visitLiteralNew(DetailAST ast)	Visits NEW token for the current class context.
private void	visitLiteralThrows(DetailAST ast)	Visits THROWS token for the current class context.
private void	visitPackageDef(DetailAST pkg)	Stores package of current class we check.
void	visitToken(DetailAST ast)	Called to process a token.
private void	visitType(DetailAST ast)	Visits type token for the current class context.

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

clearViolations, destroy, finishTree, getAcceptableTokens, getFileContents, getFilePath, getLine, getLineCodePoints, getLines, getRequiredTokens, getTabWidth, getTokenNames, getViolations, init, isCommentNodesRequired, log, log, log, setFileContents, setTabWidth, setTokens

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

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

Methods inherited from class com.puppycrawl.tools.checkstyle.AbstractAutomaticBean

configure, contextualize, getConfiguration, setupChild

Methods inherited from class java.lang.Object

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

Field Detail

DOT

private static final char DOT

A package separator - "."

See Also:

Constant Field Values

DEFAULT_EXCLUDED_CLASSES

private static final Set<String> DEFAULT_EXCLUDED_CLASSES

Class names to ignore.

DEFAULT_EXCLUDED_PACKAGES

private static final Set<String> DEFAULT_EXCLUDED_PACKAGES

Package names to ignore.

BRACKET_PATTERN

private static final Pattern BRACKET_PATTERN

Pattern to match brackets in a full type name.

excludeClassesRegexps

private final List<Pattern> excludeClassesRegexps

Specify user-configured regular expressions to ignore classes.

importedClassPackages

private final Map<String,String> importedClassPackages

A map of (imported class name -> class name with package) pairs.

classesContexts

private final Deque<AbstractClassCouplingCheck.ClassContext> classesContexts

Stack of class contexts.

excludedClasses

private Set<String> excludedClasses

Specify user-configured class names to ignore.

excludedPackages

private Set<String> excludedPackages

Specify user-configured packages to ignore.

max

private int max

Specify the maximum threshold allowed.

packageName

private String packageName

Current file package.

Constructor Detail

AbstractClassCouplingCheck

protected AbstractClassCouplingCheck(int defaultMax)

Creates new instance of the check.

Parameters:

defaultMax - default value for allowed complexity.

Method Detail

getLogMessageId

protected abstract String getLogMessageId()

Returns message key we use for log violations.

Returns:

message key we use for log violations.

getDefaultTokens

public final int[] getDefaultTokens()

Description copied from class: AbstractCheck

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

Specified by:

getDefaultTokens in class AbstractCheck

Returns:

the default tokens

See Also:

TokenTypes

setMax

public final void setMax(int max)

Setter to specify the maximum threshold allowed.

Parameters:

max - allowed complexity.

setExcludedClasses

public final void setExcludedClasses(String... excludedClasses)

Setter to specify user-configured class names to ignore.

Parameters:

excludedClasses - classes to ignore.

setExcludeClassesRegexps

public void setExcludeClassesRegexps(String... from)

Setter to specify user-configured regular expressions to ignore classes.

Parameters:

from - array representing regular expressions of classes to ignore.

setExcludedPackages

public final void setExcludedPackages(String... excludedPackages)

Setter to specify user-configured packages to ignore.

Parameters:

excludedPackages - packages to ignore.

Throws:

IllegalArgumentException - if there are invalid identifiers among the packages.

beginTree

public final void beginTree(DetailAST ast)

Description copied from class: AbstractCheck

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

Overrides:

beginTree in class AbstractCheck

Parameters:

ast - the root of the tree

visitToken

public void visitToken(DetailAST ast)

Description copied from class: AbstractCheck

Called to process a token.

Overrides:

visitToken in class AbstractCheck

Parameters:

ast - the token to process

leaveToken

public void leaveToken(DetailAST ast)

Description copied from class: AbstractCheck

Called after all the child nodes have been process.

Overrides:

leaveToken in class AbstractCheck

Parameters:

ast - the token leaving

visitPackageDef

private void visitPackageDef(DetailAST pkg)

Stores package of current class we check.

Parameters:

pkg - package definition.

visitClassDef

private void visitClassDef(DetailAST classDef)

Creates new context for a given class.

Parameters:

classDef - class definition node.

leaveClassDef

private void leaveClassDef()

Restores previous context.

registerImport

private void registerImport(DetailAST imp)

Registers given import. This allows us to track imported classes.

Parameters:

imp - import definition.

createNewClassContext

private void createNewClassContext(String className,
                                   DetailAST ast)

Creates new inner class context with given name and location.

Parameters:

className - The class name.

ast - The class ast.

checkCurrentClassAndRestorePrevious

private void checkCurrentClassAndRestorePrevious()

Restores previous context.

visitType

private void visitType(DetailAST ast)

Visits type token for the current class context.

Parameters:

ast - TYPE token.

visitLiteralNew

private void visitLiteralNew(DetailAST ast)

Visits NEW token for the current class context.

Parameters:

ast - NEW token.

visitLiteralThrows

private void visitLiteralThrows(DetailAST ast)

Visits THROWS token for the current class context.

Parameters:

ast - THROWS token.

visitAnnotationType

private void visitAnnotationType(DetailAST annotationAST)

Visit ANNOTATION literal and get its type to referenced classes of context.

Parameters:

annotationAST - Annotation ast.