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

  • Field Details

    • 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 Details

  • Method Details

    • 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