Class ISBNValidator

java.lang.Object
org.apache.commons.validator.routines.ISBNValidator
All Implemented Interfaces:
Serializable
public class ISBNValidator extends Object implements Serializable
ISBN-10 and ISBN-13 Code Validation.

This validator validates the code is either a valid ISBN-10 (using a CodeValidator with the ISBN10CheckDigit) or a valid ISBN-13 code (using a CodeValidator with the the EAN13CheckDigit routine).

The validate() methods return the ISBN code with formatting characters removed if valid or null if invalid.

This validator also provides the facility to convert ISBN-10 codes to ISBN-13 if the convert property is true.

From 1st January 2007 the book industry will start to use a new 13 digit ISBN number (rather than this 10 digit ISBN number). ISBN-13 codes are EAN codes, for more information see:

Since:
Validator 1.4
Version:
$Revision: 1649191 $
See Also:

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:

    • SEP

      private static final String SEP
      See Also:

    • GROUP

      private static final String GROUP
      See Also:

    • PUBLISHER

      private static final String PUBLISHER
      See Also:

    • TITLE

      private static final String TITLE
      See Also:

    • ISBN10_REGEX

      static final String ISBN10_REGEX
      ISBN-10 consists of 4 groups of numbers separated by either dashes (-) or spaces. The first group is 1-5 characters, second 1-7, third 1-6, and fourth is 1 digit or an X.
      See Also:

    • ISBN13_REGEX

      static final String ISBN13_REGEX
      ISBN-13 consists of 5 groups of numbers separated by either dashes (-) or spaces. The first group is 978 or 979, the second group is 1-5 characters, third 1-7, fourth 1-6, and fifth is 1 digit.
      See Also:

    • ISBN_VALIDATOR

      private static final ISBNValidator ISBN_VALIDATOR
      ISBN Code Validator (which converts ISBN-10 codes to ISBN-13

    • ISBN_VALIDATOR_NO_CONVERT

      private static final ISBNValidator ISBN_VALIDATOR_NO_CONVERT
      ISBN Code Validator (which converts ISBN-10 codes to ISBN-13

    • isbn10Validator

      private final CodeValidator isbn10Validator
      ISBN-10 Code Validator

    • isbn13Validator

      private final CodeValidator isbn13Validator
      ISBN-13 Code Validator

    • convert

      private final boolean convert

  • Constructor Details

    • ISBNValidator

      public ISBNValidator()
      Construct an ISBN validator which converts ISBN-10 codes to ISBN-13.

    • ISBNValidator

      public ISBNValidator(boolean convert)
      Construct an ISBN validator indicating whether ISBN-10 codes should be converted to ISBN-13.
      Parameters:
      convert - true if valid ISBN-10 codes should be converted to ISBN-13 codes or false if valid ISBN-10 codes should be returned unchanged.

  • Method Details

    • getInstance

      public static ISBNValidator getInstance()
      Return a singleton instance of the ISBN validator which converts ISBN-10 codes to ISBN-13.
      Returns:
      A singleton instance of the ISBN validator.

    • getInstance

      public static ISBNValidator getInstance(boolean convert)
      Return a singleton instance of the ISBN validator specifying whether ISBN-10 codes should be converted to ISBN-13.
      Parameters:
      convert - true if valid ISBN-10 codes should be converted to ISBN-13 codes or false if valid ISBN-10 codes should be returned unchanged.
      Returns:
      A singleton instance of the ISBN validator.

    • isValid

      public boolean isValid(String code)
      Check the code is either a valid ISBN-10 or ISBN-13 code.
      Parameters:
      code - The code to validate.
      Returns:
      true if a valid ISBN-10 or ISBN-13 code, otherwise false.

    • isValidISBN10

      public boolean isValidISBN10(String code)
      Check the code is a valid ISBN-10 code.
      Parameters:
      code - The code to validate.
      Returns:
      true if a valid ISBN-10 code, otherwise false.

    • isValidISBN13

      public boolean isValidISBN13(String code)
      Check the code is a valid ISBN-13 code.
      Parameters:
      code - The code to validate.
      Returns:
      true if a valid ISBN-13 code, otherwise false.

    • validate

      public String validate(String code)
      Check the code is either a valid ISBN-10 or ISBN-13 code.

      If valid, this method returns the ISBN code with formatting characters removed (i.e. space or hyphen).

      Converts an ISBN-10 codes to ISBN-13 if convertToISBN13 is true.

      Parameters:
      code - The code to validate.
      Returns:
      A valid ISBN code if valid, otherwise null.

    • validateISBN10

      public String validateISBN10(String code)
      Check the code is a valid ISBN-10 code.

      If valid, this method returns the ISBN-10 code with formatting characters removed (i.e. space or hyphen).

      Parameters:
      code - The code to validate.
      Returns:
      A valid ISBN-10 code if valid, otherwise null.

    • validateISBN13

      public String validateISBN13(String code)
      Check the code is a valid ISBN-13 code.

      If valid, this method returns the ISBN-13 code with formatting characters removed (i.e. space or hyphen).

      Parameters:
      code - The code to validate.
      Returns:
      A valid ISBN-13 code if valid, otherwise null.

    • convertToISBN13

      public String convertToISBN13(String isbn10)
      Convert an ISBN-10 code to an ISBN-13 code.

      This method requires a valid ISBN-10 with NO formatting characters.

      Parameters:
      isbn10 - The ISBN-10 code to convert
      Returns:
      A converted ISBN-13 code or null if the ISBN-10 code is not valid