Hello,
I am trying to implement a program which will help to manage OCF card
terminals. But I find some problems in incorporating the PS/SC
terminals in this. The tool displays information like the port of the
reader, whether it is active or inactive etc. It is also possible to
activate or disactivate a reader. (activate means the reader is
present physically and available for use by client program).
It is found that for PC/SC readers it is not possible to have
information as it is displayed for other readers.
In the reader manager, the entry for the PC/SC card terminals will
look like the following.
PC/SC10 * Gemplus OROS based Readers 0
PC/SC10 * Gemplus OROS based Readers 1
..etc
But status active /inactive cannot be displayed. The activate/
disactivate button also cannot be implemented for PC/SC. Testing
also is not possible. If an active reader is unavailable an exception
will not be thrown.
Detailed description:
The opencard.terminals property string for the PC/SC readers consists
of only the factory name. The PCSC Resource Manager is maintaining a
list of installed drivers in the system. The OCF wrapper class will
get the list of reader entries from this PCSC Resource Manager. The
factory object (PCSC10CARDTERMINALFACTORY) will create a
CardTerminalObject for each entry in the list of readers supplied by
the PCSC Resource manager. The PCSC CardTerminal does not have any
suitable method to check for the presence of the reader. Unlike the
GemplusCardTerminal implementation of the open () and close () method
which throws the CardTerminalException if the reader is not connected
to the host, PC/SC CardTerminal implementation (for the above
mentioned methods) will not throw any exceptions if the reader is not
connected to the host.
The terminal status can not be determined by merely calling open and
close methods. Therefore finding out the reader status is not possible
with the use of the above methods.
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