Customising log4j logging for sensitive data

Posted by Xetius on Stack Overflow See other posts from Stack Overflow or by Xetius
Published on 2010-05-12T10:36:05Z Indexed on 2010/05/12 10:54 UTC
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log4j

I have a class which contains sensitive information (Credit card info, phone numbers etc).

I want to be able to pass this class to log4j, but have it obscure certain information.

If I have a class UserInformation which has getPhoneNumber, getCreditCardNumber methods, how would I customise log4j or this class so that it will obscure the numbers correctly.

I want the credit card number to be output as xxxx-xxxx-xxxx-1234 and the phone number to be output as xxxx-xxx-xxx given that these would be 1234-1234-1234-1234 and 1234-567-890

Thanks

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