com.puppycrawl.tools.checkstyle.checks.metrics

Class JavaNCSSCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.Check

com.puppycrawl.tools.checkstyle.checks.metrics.JavaNCSSCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class JavaNCSSCheck
extends Check

This check calculates the Non Commenting Source Statements (NCSS) metric for java source files and methods. The check adheres to the JavaNCSS specification and gives the same results as the JavaNCSS tool. The NCSS-metric tries to determine complexity of methods, classes and files by counting the non commenting lines. Roughly said this is (nearly) equivalent to counting the semicolons and opening curly braces.

Author:

Lars Ködderitzsch

Constructor Summary

Constructors

Constructor and Description
JavaNCSSCheck()

Method Summary

Methods

Modifier and Type	Method and Description
void	beginTree(DetailAST rootAST) Called before the starting to process a tree.
void	finishTree(DetailAST rootAST) Called after finished processing a tree.
int[]	getDefaultTokens() Returns the default token a check is interested in.
int[]	getRequiredTokens() The tokens that this check must be registered for.
void	leaveToken(DetailAST ast) Called after all the child nodes have been process.
void	setClassMaximum(int classMax) Sets the maximum ncss for a class.
void	setFileMaximum(int fileMax) Sets the maximum ncss for a file.
void	setMethodMaximum(int methodMax) Sets the maximum ncss for a method.
void	visitToken(DetailAST ast) Called to process a token.

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

destroy, getAcceptableTokens, getClassLoader, getFileContents, getLine, getLines, getTabWidth, getTokenNames, init, isCommentNodesRequired, log, log, setClassLoader, setFileContents, setMessages, setTabWidth, setTokens

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

Constructor Detail

JavaNCSSCheck

public JavaNCSSCheck()

Method Detail

getDefaultTokens

public int[] getDefaultTokens()

Description copied from class: Check

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 Check

Returns:

the default tokens

See Also:

TokenTypes

getRequiredTokens

public int[] getRequiredTokens()

Description copied from class: Check

The tokens that this check must be registered for.

Overrides:

getRequiredTokens in class Check

Returns:

the token set this must be registered for.

See Also:

TokenTypes

beginTree

public void beginTree(DetailAST rootAST)

Description copied from class: Check

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

Overrides:

beginTree in class Check

Parameters:

rootAST - the root of the tree

visitToken

public void visitToken(DetailAST ast)

Description copied from class: Check

Called to process a token.

Overrides:

visitToken in class Check

Parameters:

ast - the token to process

leaveToken

public void leaveToken(DetailAST ast)

Description copied from class: Check

Called after all the child nodes have been process.

Overrides:

leaveToken in class Check

Parameters:

ast - the token leaving

finishTree

public void finishTree(DetailAST rootAST)

Description copied from class: Check

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

Overrides:

finishTree in class Check

Parameters:

rootAST - the root of the tree

setFileMaximum

public void setFileMaximum(int fileMax)

Sets the maximum ncss for a file.

Parameters:

fileMax - the maximum ncss

setClassMaximum

public void setClassMaximum(int classMax)

Sets the maximum ncss for a class.

Parameters:

classMax - the maximum ncss

setMethodMaximum

public void setMethodMaximum(int methodMax)

Sets the maximum ncss for a method.

Parameters:

methodMax - the maximum ncss