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java.lang.Objectnet.sourceforge.stripes.validation.CreditCardTypeConverter
public class CreditCardTypeConverter
A faux TypeConverter that validates that the String supplied is a valid credit card number. The Luhn algorithm is used in addition to valid credit card prefixes to determine if the string being converted qualifies as a credit card number. This DOES NOT check to see if an actual card with the specified number exists, only that it appears to be a valid card number.
If the credit card number is not valid a single error message will be generated. The error message is a scoped message with a default scope of converter.creditCard and name invalidCreditCard. As a result error messages will be looked for in the following order:
Nested Class Summary | |
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static class |
CreditCardTypeConverter.Type
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Constructor Summary | |
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CreditCardTypeConverter()
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Method Summary | |
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String |
convert(String input,
Class<? extends String> targetType,
Collection<ValidationError> errors)
Validates the user input to ensure that it looks like a valid credit card number. |
static CreditCardTypeConverter.Type |
getCardType(String cardNumber)
Determines the type of card from the card number passed in. |
void |
setLocale(Locale locale)
Accepts the Locale provided, but does nothing with it since credit card numbers are Locale-less. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CreditCardTypeConverter()
Method Detail |
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public void setLocale(Locale locale)
setLocale
in interface TypeConverter<String>
locale
- the locale that the TypeConverter will be converting from.public String convert(String input, Class<? extends String> targetType, Collection<ValidationError> errors)
convert
in interface TypeConverter<String>
input
- the String input, always a non-null non-empty StringtargetType
- realistically always String since java.lang.String is finalerrors
- a non-null collection of errors to populate in case of error
public static CreditCardTypeConverter.Type getCardType(String cardNumber)
cardNumber
- the card number to check
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