Package smartcard :: Package sw :: Module ErrorChecker :: Class ErrorChecker

Class ErrorChecker

Base class for status word error checking strategies.

Error checking strategies are chained into an ErrorCheckingChain to implement a Chain of Responsibility. Each strategy in the chain is called until an error is detected. The strategy raises a smartcard.sw.SWException exception when an error is detected.

Implementation derived from Bruce Eckel, Thinking in Python. The ErrorCheckingChain implements the Chain Of Responsibility design pattern.

Instance Methods

[hide private]

__call__(data, sw1, sw2)
Called to test data, sw1 and sw2 for error.

source code

Method Details

[hide private]

call(data, sw1, sw2)
(Call operator)

source code

Called to test data, sw1 and sw2 for error.

data: apdu response data sw1, sw2: apdu data status words

Derived classes must raise a smartcard.sw.SWException upon error.

Class ErrorChecker

__call__(data, sw1, sw2) (Call operator)

call(data, sw1, sw2)
(Call operator)