opencard.core.util
Class HexString

java.lang.Object
  opencard.core.util.HexString

public class HexString
extends java.lang.Object

Small utility class to hexify bytes and shorts.

Version:

$Id: HexString.java,v 1.1.1.1 2004/04/08 10:29:27 asc Exp $

Author:

Michael Baentsch (mib@zurich.ibm.com), Dirk Husemann (hud@zurich.ibm.com)

Field Summary

protected static java.lang.String[]

hexChars Auxillary string array.

Constructor Summary

HexString()

Method Summary

static java.lang.String	dump(byte[] data) Hex-dump a byte array (offset and printable ASCII included)
static java.lang.String	dump(byte[] data, int offset, int len) Hex-dump a byte array (offset and printable ASCII included)
static java.lang.String	hexify(byte[] data) Hexify a byte array.
static java.lang.String	hexify(int val) Hexify a byte value.
static java.lang.String	hexifyShort(byte a, byte b) Hexify short value encoded in two bytes.
static java.lang.String	hexifyShort(int val) Hexify a short value.
static java.lang.String	hexifyShort(int a, int b) Hexify short value encoded in two (int-encoded)bytes.
static byte[]	parseHexString(java.lang.String byteString) Parse bytes encoded as Hexadecimals into a byte array.
static byte[]	parseLittleEndianHexString(java.lang.String byteString) Parse string of Hexadecimals into a byte array suitable for unsigned BigInteger computations.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

hexChars

protected static final java.lang.String[] hexChars

Auxillary string array.

Constructor Detail

HexString

public HexString()

Method Detail

dump

public static java.lang.String dump(byte[] data)

Hex-dump a byte array (offset and printable ASCII included)

Parameters:

data - Byte array to convert to HexString

Returns:

HexString

dump

public static java.lang.String dump(byte[] data,
                                    int offset,
                                    int len)

Hex-dump a byte array (offset and printable ASCII included)

Parameters:

data - Byte array to convert to HexString

offset - Start dump here

len - Number of bytes to be dumped.

Returns:

HexString

hexify

public static java.lang.String hexify(byte[] data)

Hexify a byte array.

Parameters:

data - Byte array to convert to HexString

Returns:

HexString

hexify

public static java.lang.String hexify(int val)

Hexify a byte value.

Parameters:

val - Byte value to be displayed as a HexString.

Returns:

HexString

hexifyShort

public static java.lang.String hexifyShort(byte a,
                                           byte b)

Hexify short value encoded in two bytes.

Parameters:

a - High byte of short value to be hexified

b - Low byte of short value to be hexified

Returns:

HexString

hexifyShort

public static java.lang.String hexifyShort(int val)

Hexify a short value.

Parameters:

val - Short value to be displayed as a HexString.

Returns:

HexString

hexifyShort

public static java.lang.String hexifyShort(int a,
                                           int b)

Hexify short value encoded in two (int-encoded)bytes.

Parameters:

a - High byte of short value to be hexified

b - Low byte of short value to be hexified

Returns:

HexString

parseHexString

public static byte[] parseHexString(java.lang.String byteString)

Parse bytes encoded as Hexadecimals into a byte array.

Parameters:

byteString - String containing HexBytes.

Returns:

byte array containing the parsed values of the given string.

parseLittleEndianHexString

public static byte[] parseLittleEndianHexString(java.lang.String byteString)

Parse string of Hexadecimals into a byte array suitable for unsigned BigInteger computations. Reverse the order of the parsed data on the fly (input data little endian).

Parameters:

byteString - String containing HexBytes.

Returns:

byte array containing the parsed values of the given string.