Package com.puppycrawl.tools.checkstyle.checks.regexp

Class RegexpSinglelineCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.AbstractAutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck

com.puppycrawl.tools.checkstyle.checks.regexp.RegexpSinglelineCheck

All Implemented Interfaces:

Configurable, Contextualizable, FileSetCheck

public class RegexpSinglelineCheck
extends AbstractFileSetCheck

Checks that a specified pattern matches a single-line in any file type.

Rationale: This check can be used to prototype checks and to find common bad practice such as calling ex.printStacktrace(), System.out.println(), System.exit(), etc.

• Property fileExtensions - Specify the file extensions of the files to process. Type is java.lang.String[]. Default value is "".
• Property format - Specify the format of the regular expression to match. Type is java.util.regex.Pattern. Default value is "$.".
• Property ignoreCase - Control whether to ignore case when searching. Type is boolean. Default value is false.
• Property maximum - Specify the maximum number of matches required in each file. Type is int. Default value is 0.
• Property message - Specify the message which is used to notify about violations, if empty then default (hard-coded) message is used. Type is java.lang.String. Default value is null.
• Property minimum - Specify the minimum number of matches required in each file. Type is int. Default value is 0.

Parent is com.puppycrawl.tools.checkstyle.Checker

Violation Message Keys:

• regexp.exceeded
• regexp.minimum

Since:

5.0

Nested Class Summary

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

AbstractAutomaticBean.OutputStreamOptions

Field Summary

Fields

Modifier and Type	Field	Description
private SinglelineDetector	detector	The detector to use.
private String	format	Specify the format of the regular expression to match.
private boolean	ignoreCase	Control whether to ignore case when searching.
private int	maximum	Specify the maximum number of matches required in each file.
private String	message	Specify the message which is used to notify about violations, if empty then default (hard-coded) message is used.
private int	minimum	Specify the minimum number of matches required in each file.

Constructor Summary

Constructors

Constructor	Description
RegexpSinglelineCheck()

Method Summary

Modifier and Type	Method	Description
void	beginProcessing(String charset)	Called when about to be called to process a set of files.
protected void	processFiltered(File file, FileText fileText)	Called to process a file that matches the specified file extensions.
void	setFormat(String format)	Setter to specify the format of the regular expression to match.
void	setIgnoreCase(boolean ignoreCase)	Setter to control whether to ignore case when searching.
void	setMaximum(int maximum)	Setter to specify the maximum number of matches required in each file.
void	setMessage(String message)	Setter to specify the message which is used to notify about violations, if empty then default (hard-coded) message is used.
void	setMinimum(int minimum)	Setter to specify the minimum number of matches required in each file.

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

addViolations, destroy, finishProcessing, fireErrors, getFileContents, getFileExtensions, getMessageDispatcher, getTabWidth, getViolations, init, log, log, process, setFileContents, setFileExtensions, setMessageDispatcher, setTabWidth

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

Methods inherited from interface com.puppycrawl.tools.checkstyle.api.Configurable

configure

Methods inherited from interface com.puppycrawl.tools.checkstyle.api.Contextualizable

contextualize

Field Detail

format

private String format

Specify the format of the regular expression to match.

message

private String message

Specify the message which is used to notify about violations, if empty then default (hard-coded) message is used.

minimum

private int minimum

Specify the minimum number of matches required in each file.

maximum

private int maximum

Specify the maximum number of matches required in each file.

ignoreCase

private boolean ignoreCase

Control whether to ignore case when searching.

detector

private SinglelineDetector detector

The detector to use.

Constructor Detail

RegexpSinglelineCheck

public RegexpSinglelineCheck()

Method Detail

beginProcessing

public void beginProcessing(String charset)

Description copied from interface: FileSetCheck

Called when about to be called to process a set of files.

Specified by:

beginProcessing in interface FileSetCheck

Overrides:

beginProcessing in class AbstractFileSetCheck

Parameters:

charset - the character set used to read the files.

processFiltered

protected void processFiltered(File file,
                               FileText fileText)

Description copied from class: AbstractFileSetCheck

Called to process a file that matches the specified file extensions.

Specified by:

processFiltered in class AbstractFileSetCheck

Parameters:

file - the file to be processed

fileText - the contents of the file.

setFormat

public void setFormat(String format)

Setter to specify the format of the regular expression to match.

Parameters:

format - the format of the regular expression to match.

Since:

5.0

setMessage

public void setMessage(String message)

Setter to specify the message which is used to notify about violations, if empty then default (hard-coded) message is used.

Parameters:

message - the message to report for a match.

Since:

5.0

setMinimum

public void setMinimum(int minimum)

Setter to specify the minimum number of matches required in each file.

Parameters:

minimum - the minimum number of matches required in each file.

Since:

5.0

setMaximum

public void setMaximum(int maximum)

Setter to specify the maximum number of matches required in each file.

Parameters:

maximum - the maximum number of matches required in each file.

Since:

5.0

setIgnoreCase

public void setIgnoreCase(boolean ignoreCase)

Setter to control whether to ignore case when searching.

Parameters:

ignoreCase - whether to ignore case when searching.

Since:

5.0