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## com.sun.javacard.apduio
Class Apdu

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

    public class Apdu

extends java.lang.Object

This class represent a pair of C-APDU and R-APDU. It is used internally by several components of the Java Card development kit.

Field Summary
`static int` | `APDU_TYPE_MASK` Mask to extract APDU type information: either ISO ecoding or not.
`static int` | `CASE_1` The value which indicates this Apdu is an ISO 7816-3 Case 1 apdu
`static int` | `CASE_2E` The value which indicates this Apdu is an ISO 7816-3 Case 2 Extended apdu
`static int` | `CASE_2S` The value which indicates this Apdu is an ISO 7816-3 Case 2 Short apdu
`static int` | `CASE_3E` The value which indicates this Apdu is an ISO 7816-3 Case 3 Extended apdu
`static int` | `CASE_3S` The value which indicates this Apdu is an ISO 7816-3 Case 3 Short apdu
`static int` | `CASE_4E` The value which indicates this Apdu is an ISO 7816-3 Case 4 Extended apdu
`static int` | `CASE_4S` The value which indicates this Apdu is an ISO 7816-3 Case 4 Short apdu
`static int` | `CLA` The offset in the command array to the ISO 7816-3 CLA octet.
`byte[]` | `command` Internal representation of the C-APDU header
`static int` | `COMMAND_ARRAY_SIZE` Size of the command array
`byte[]` | `dataIn` Data part of the C-APDU
`byte[]` | `dataOut` Data part of the R-APDU
`boolean` | `formatOP` Descriptive Output Flag
`static int` | `INS` The offset in the command array to the ISO 7816-3 INS octet.
`boolean` | `isExtended` Extended APDU flag
`int` | `Lc` Value of Lc
`int` | `Le` Value of Le
`static int` | `LOGICAL_CHN_MASK` Mask to extract channel information out of the CLA byte.
`static int` | `P1` The offset in the command array to the ISO 7816-3 P1 octet.
`static int` | `P2` The offset in the command array to the ISO 7816-3 P2 octet.
`static int` | `P3` The offset in the command array to the ISO 7816-3 P3 octet.
`static java.util.Hashtable<java.lang.Object,java.lang.String>` | `STATUS_CODES`
`byte[]` | `sw1sw2` Status as byte array

Constructor Summary
`Apdu()` Creates a new instance of Apdu.
`Apdu(byte[] b)`

Method Summary
`int` | `getCase()` Return the ISO 7816-3 Case of this Apdu
`byte` | `getChannelInfo()` Determines the channel number
`byte[]` | `getCommand()` Get internal representation of the header of the C-APDU The header is just CLA, INS, P1, P2
`byte[]` | `getCommandApduBytes()` returns the command APDU as a byte array.
`byte[]` | `getDataIn()` Get the data part of the C-APDU
`byte[]` | `getDataOut()` Get the data part of the R-APDU
`int` | `getLc()` Get Lc
`int` | `getLe()` Get Le
`byte[]` | `getResponseApduBytes()` returns the response APDU as a byte array.
`int` | `getStatus()` Get status (SW bytes) as integer
`byte[]` | `getSw1Sw2()` Get status bytes
`byte` | `makeISOInterIndustryCLA(byte CLAByte)`
`void` | `setDataIn(byte[] dataIn)` Set the data of the C-APDU
`void` | `setDataIn(byte[] dataIn, int length)` Set the data of the C-APDU
`void` | `setDataOut(byte[] dataOut)` Set the data part of the R-APDU
`void` | `setDataOut(byte[] dataOut, int length)` Set the data part of the R-APDU
`void` | `setLc(int Lc)` Set the value of Lc
`void` | `setLe(int Le)` Set Le
`java.lang.String` | `toString()` Generate a string representation of this Apdu in the ApduTool output format.

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

Field Detail

### COMMAND_ARRAY_SIZE

    public static final int COMMAND_ARRAY_SIZE

  Size of the command array

  See Also:
    Constant Field Values

### CLA

    public static final int CLA

  The offset in the command array to the ISO 7816-3 CLA octet.

  See Also:
    Constant Field Values

### INS

    public static final int INS

  The offset in the command array to the ISO 7816-3 INS octet.

  See Also:
    Constant Field Values

### P1

    public static final int P1

  The offset in the command array to the ISO 7816-3 P1 octet.

  See Also:
    Constant Field Values

### P2

    public static final int P2

  The offset in the command array to the ISO 7816-3 P2 octet.

  See Also:
    Constant Field Values

### P3

    public static final int P3

  The offset in the command array to the ISO 7816-3 P3 octet.

  See Also:
    Constant Field Values

### CASE_1

    public static final int CASE_1

  The value which indicates this Apdu is an ISO 7816-3 Case 1 apdu

  See Also:
    Constant Field Values

### CASE_2S

    public static final int CASE_2S

  The value which indicates this Apdu is an ISO 7816-3 Case 2 Short apdu

  See Also:
    Constant Field Values

### CASE_3S

    public static final int CASE_3S

  The value which indicates this Apdu is an ISO 7816-3 Case 3 Short apdu

  See Also:
    Constant Field Values

### CASE_4S

    public static final int CASE_4S

  The value which indicates this Apdu is an ISO 7816-3 Case 4 Short apdu

  See Also:
    Constant Field Values

### CASE_2E

    public static final int CASE_2E

  The value which indicates this Apdu is an ISO 7816-3 Case 2 Extended apdu

  See Also:
    Constant Field Values

### CASE_3E

    public static final int CASE_3E

  The value which indicates this Apdu is an ISO 7816-3 Case 3 Extended apdu

  See Also:
    Constant Field Values

### CASE_4E

    public static final int CASE_4E

  The value which indicates this Apdu is an ISO 7816-3 Case 4 Extended apdu

  See Also:
    Constant Field Values

### LOGICAL_CHN_MASK

    public static final int LOGICAL_CHN_MASK

  Mask to extract channel information out of the CLA byte.

  See Also:
    Constant Field Values

### APDU_TYPE_MASK

    public static final int APDU_TYPE_MASK

  Mask to extract APDU type information: either ISO ecoding or not.

  See Also:
    Constant Field Values

### command

    public byte[] command

  Internal representation of the C-APDU header

### Lc

    public int Lc

  Value of Lc

### dataIn

    public byte[] dataIn

  Data part of the C-APDU

### Le

    public int Le

  Value of Le

### dataOut

    public byte[] dataOut

  Data part of the R-APDU

### sw1sw2

    public byte[] sw1sw2

  Status as byte array

### isExtended

    public boolean isExtended

  Extended APDU flag

### formatOP

    public boolean formatOP

  Descriptive Output Flag

### STATUS_CODES

    public static final java.util.Hashtable<java.lang.Object,java.lang.String> STATUS_CODES

Constructor Detail

### Apdu

    public Apdu(byte[] b)

Parameters:
  `b` -

### Apdu

    public Apdu()

  Creates a new instance of Apdu.

Method Detail

### getCommand

    public byte[] getCommand()

  Get internal representation of the header of the C-APDU The header is just CLA, INS, P1, P2

  Returns:
    The header of the C-APDU

### getDataIn

    public byte[] getDataIn()

  Get the data part of the C-APDU

  Returns:
    The data

### setDataIn

    public void setDataIn(byte[] dataIn)

  Set the data of the C-APDU

  Parameters:
    `dataIn` - The data

### setLc

    public void setLc(int Lc)

  Set the value of Lc

  Parameters:
    `Lc` - value of the Lc

### setDataIn

    public void setDataIn(byte[] dataIn,
                          int length)

  Set the data of the C-APDU

  Parameters:
    `dataIn` - The data
    `length` - the data length

### getLc

    public int getLc()

  Get Lc

  Returns:
    The Lc

### setDataOut

    public void setDataOut(byte[] dataOut)

  Set the data part of the R-APDU

  Parameters:
    `dataOut` - The data

### setLe

    public void setLe(int Le)

  Set Le

  Parameters:
    `Le` - value of Le

### setDataOut

    public void setDataOut(byte[] dataOut,
                           int length)

  Set the data part of the R-APDU

  Parameters:
    `dataOut` - The data
    `length` - The data length

### getLe

    public int getLe()

  Get Le

  Returns:
    The Le

### getDataOut

    public byte[] getDataOut()

  Get the data part of the R-APDU

  Returns:
    The data part of the R-APDU

### getSw1Sw2

    public byte[] getSw1Sw2()

  Get status bytes

  Returns:
    The status bytes

### getStatus

    public int getStatus()

  Get status (SW bytes) as integer

  Returns:
    The status

### getCase

    public int getCase()

  Return the ISO 7816-3 Case of this Apdu

  Returns:
    An int value indicating the ISO case.

### getChannelInfo

    public byte getChannelInfo()

  Determines the channel number

  Returns:
    The channel number

### makeISOInterIndustryCLA

    public byte makeISOInterIndustryCLA(byte CLAByte)

### getCommandApduBytes

    public byte[] getCommandApduBytes()

  returns the command APDU as a byte array.

  Returns:
    The command APDU

### getResponseApduBytes

    public byte[] getResponseApduBytes()

  returns the response APDU as a byte array.

  Returns:
    The response APDU

### toString

    public java.lang.String toString()

  Generate a string representation of this Apdu in the ApduTool output format.

  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    String representation of this Apdu

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