Module org.apache.wicket.core
Package org.apache.wicket.validation.validator

Class CreditCardValidator

java.lang.Object
org.apache.wicket.validation.validator.CreditCardValidator
All Implemented Interfaces:
Serializable, IClusterable, IValidator<String>
public class CreditCardValidator extends Object implements IValidator<String>
Checks if a credit card number is valid. The number will be checked for "American Express", "China UnionPay", "Diners Club Carte Blanche", "Diners Club International", "Diners Club US & Canada", "Discover Card", "JCB", "Laser", "Maestro", "MasterCard", "Solo", "Switch", "Visa" and "Visa Electron". If none of those apply to the credit card number, the credit card number is considered invalid.

Card prefixes and lengths have been taken from Wikipedia.

Since:
1.2.6
Author:
Johan Compagner, Joachim F. Rohde
See Also:

  • Constructor Details

  • Method Details

    • getCardId

      public final CreditCardValidator.CreditCard getCardId()
      Returns:
      Credit card issuer

    • setCardId

      protected void setCardId(CreditCardValidator.CreditCard cardId)
      Allow subclasses to set the card id
      Parameters:
      cardId -

    • validate

      public void validate(IValidatable<String> validatable)
      Description copied from interface: IValidator
      Validates the IValidatable instance. Validation errors should be reported using the IValidatable.error(IValidationError) method.
      Specified by:
      validate in interface IValidator<String>
      Parameters:
      validatable - the IValidatable instance being validated

    • decorate

      protected IValidationError decorate(IValidationError error, IValidatable<String> validatable)
      Allows subclasses to decorate reported errors
      Parameters:
      error -
      validatable -
      Returns:
      decorated error

    • isLengthAndPrefixCorrect

      protected boolean isLengthAndPrefixCorrect(String creditCardNumber)
      Checks if the credit card number can be determined as a valid number.
      Parameters:
      creditCardNumber - the credit card number as a string
      Returns:
      TRUE if the credit card number could be determined as a valid number, else FALSE is returned

    • determineCardId

      public final CreditCardValidator.CreditCard determineCardId(String creditCardNumber)
      Checks if the credit card number can be determined as a valid number.
      Parameters:
      creditCardNumber - the credit card number as a string
      Returns:
      TRUE if the credit card number could be determined as a valid number, else FALSE is returned

    • isUnknown

      protected CreditCardValidator.CreditCard isUnknown(String creditCardNumber)
      Can be used (subclassed) to extend the test with a credit card not yet known by the validator.
      Parameters:
      creditCardNumber - the credit card number as a string
      Returns:
      The credit card id of the issuer

    • isChecksumCorrect

      protected final boolean isChecksumCorrect(String creditCardNumber)
      Calculates the checksum of a credit card number using the Luhn algorithm (the so-called "mod 10" algorithm).
      Parameters:
      creditCardNumber - the credit card number for which the checksum should be calculated
      Returns:
      TRUE if the checksum for the given credit card number is valid, else return FALSE
      See Also: