de.cardcontact.opencard.service.isocard
Interface IsoFileSystemCardService
- All Superinterfaces:
- CardServiceInterface, FileAccessCardService, FileSystemCardService, SecureService
- All Known Implementing Classes:
- ACOSCardService, IsoCardService
public interface IsoFileSystemCardService
- extends FileSystemCardService
This interface extents the original interface in the signature for the
create() and delete() method to allow better compatibility with ISO 7816-9
smart cards.
- Author:
- Andreas Schwier (info@cardcontact.de)
create
void create(CardFilePath parent,
byte fileDescriptorByte,
byte shortFileIdentifier,
byte[] data)
throws CardServiceException,
CardTerminalException
- Creates a file on the smartcard.
This method is an extension to the method originally defined by OCF. It allows the
caller to specify P1 and P2 in the command APDU as defined by ISO 7816-9.
Creating files is a card-specific operation. While the ISO file types
are specified, the access conditions that can be defined are not. When
creating a file, the access conditions to the new file have to be given.
The result is that no card-independent arguments to a create
method can be specified.
This method defines only a card-neutral signature by expecting
a byte array as a parameter. The data to be stored in that byte array
is card-specific. It is suggested, but not required, that a file header,
as it is returned by CardFileInfo.getHeader, is accepted as
that parameter block. A file header typically holds all information
needed for creating a file, in a card-specific encoding. This information
includes the file ID, structure, size, and the access conditions.
This method is intended to be used in a scenario where new applications
have to be downloaded on a smartcard. Typically, a server will be
contacted to retrieve the information about the directories and files
that have to be created. This server can be supplied with the card's ATR,
which is encapsulated by class CardID. The server will then be
able to send parameter blocks that are appropriate arguments for this
method and the respective card.
- Parameters:
parent
- the path to the directory in which to create a new filefileDescriptorByte
- File descriptor byte according to ISO 7816-4shortFileIdentifier
- Short file identifer coded on bit b8 - b4data
- the parameters specifying the file to create.
This argument is card-specific. Refer to the documentation
of the card-specific service for details.
- Throws:
CardServiceException
- if the service encountered an error
CardTerminalException
- if the terminal encountered an error- See Also:
FileSystemCardService
,
FileAccessCardService.getFileInfo(opencard.opt.iso.fs.CardFilePath)
,
CardFileInfo.getHeader()
,
CardID
,
SmartCard.getCardID()
delete
void delete(CardFilePath file,
CardFilePathComponent child,
boolean childIsDF)
throws CardServiceException,
CardTerminalException
- Deletes a file on the smartcard.
This method is an extension to the original method defined by OCF. It allows to
delete an object from within a selected DF. The implementation therefore allows to
differentiate between a "delete child" and a "delete self" operation which may have
different access conditions.
Deleting a file completely removes it from the smartcard. The associated
resources on the card, that is the allocated memory, will be freed. It
is not possible to restore the file. A new file with the same id as the
deleted file may be created in the same directory (DF).
- Parameters:
file
- the path to the file to deletechild
- File identifier of child object (either EF, DF or application)childIsDF
- True, if the child is a dedicated file
- Throws:
CardServiceException
- if the service encountered an error
CardTerminalException
- if the terminal encountered an error