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## com.sun.javacard.apduio
Class CadDevice

    java.lang.Object
      com.sun.javacard.apduio.CadDevice

Direct Known Subclasses:
  CadPCSCClient, CadT0, CadT1

    public abstract class CadDevice

extends java.lang.Object

Factory class producing CardClientInterface instances (connections to a card)

Field Summary
`protected static java.util.ResourceBundle` | `_messages` Properties file with messages
`protected boolean` | `debug` Internal debug flag.
`protected byte` | `deviceProtocol` The currentry used protocol
`protected java.io.InputStream` | `in` The input stream which data is read from.
`protected java.io.OutputStream` | `out` The output stream to which data is written.
`static byte` | `PROTOCOL_PCSC` PC/SC constant
`static byte` | `PROTOCOL_T0` Protocol constant
`static byte` | `PROTOCOL_T1` Protocol constant
`static byte` | `PROTOCOL_TCL` Protocol constant

Constructor Summary
`protected` | `CadDevice(byte devProtocolType)` this form of constructor is used by PCSC streams are not applicable
`protected` | `CadDevice(byte devProtocolType, java.io.InputStream in, java.io.OutputStream out)` this form of constructor is used by T=0, T=1 implementations

Method Summary
`void` | `close()` Flush and close the input and output streams.
`static CadClientInterface` | `getCadClientInstance(byte protocolType, java.io.InputStream in, java.io.OutputStream out)` A factory method
`byte` | `getDeviceProtocol()` Get the value of the protocol byte
`static CadClientInterface` | `getPCSCClientInstance(int readerNumber)` A factory method for connecting to a PCSC card readed

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### _messages

    protected static java.util.ResourceBundle _messages

  Properties file with messages

### in

    protected java.io.InputStream in

  The input stream which data is read from. This field is used to store the reference to the input stream which an instance of the Cad class reads from.

### out

    protected java.io.OutputStream out

  The output stream to which data is written. This field is used to store the reference to the output stream which an instance of the Cad class writes to.

### debug

    protected boolean debug

  Internal debug flag. Set the system property apduIODebug to 0x01 to activate transport level debugging.

### PROTOCOL_T0

    public static final byte PROTOCOL_T0

  Protocol constant

  See Also:
    Constant Field Values

### PROTOCOL_T1

    public static final byte PROTOCOL_T1

  Protocol constant

  See Also:
    Constant Field Values

### PROTOCOL_TCL

    public static final byte PROTOCOL_TCL

  Protocol constant

  See Also:
    Constant Field Values

### PROTOCOL_PCSC

    public static final byte PROTOCOL_PCSC

  PC/SC constant

  See Also:
    Constant Field Values

### deviceProtocol

    protected byte deviceProtocol

  The currentry used protocol

Constructor Detail

### CadDevice

    protected CadDevice(byte devProtocolType,
                        java.io.InputStream in,
                        java.io.OutputStream out)

  this form of constructor is used by T=0, T=1 implementations

  Parameters:
    `devProtocolType` - Procol constant: T1 or T1
    `in` - Input stream from a simulator or a TLP224 card reader
    `out` - Output stream to a simulator or a TLP224 card reader

### CadDevice

    protected CadDevice(byte devProtocolType)

  this form of constructor is used by PCSC streams are not applicable

  Parameters:
    `devProtocolType` - Protocol type (PCSC)

Method Detail

### getDeviceProtocol

    public byte getDeviceProtocol()

  Get the value of the protocol byte

  Returns:
    the value of the protocol byte

### getCadClientInstance

    public static CadClientInterface getCadClientInstance(byte protocolType,
                                                          java.io.InputStream in,
                                                          java.io.OutputStream out)

  A factory method

  Parameters:
    `protocolType` - Protocol constant
    `in` - Input stream from a simulator
    `out` - Output stream to a simulator
  Returns:
    New instance of a card connection

### getPCSCClientInstance

    public static CadClientInterface getPCSCClientInstance(int readerNumber)

  A factory method for connecting to a PCSC card readed

  Parameters:
    `readerNumber` - PC/SC reader number (0, 1, 2...)
  Returns:
    Connection to the reader

### close

    public void close()
               throws java.io.IOException

  Flush and close the input and output streams.

  Throws:
    `java.io.IOException` - If there is an error closing or flushing the input or output streams.

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Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.