org.yajul.util
Class Bytes

java.lang.Object
  org.yajul.util.Bytes

public class Bytes
extends java.lang.Object

Yet another class that turns Java primatives into arrays of bytes, and back. User: josh Date: Jan 11, 2004 Time: 10:18:58 PM

Field Summary

static byte[]	HEX_BYTES_LOWER Lowercase hex characters as bytes.
static byte[]	HEX_BYTES_UPPER Uppercase hex characters as bytes.
static char[]	HEX_CHARS_LOWER Lowercase hex characters.
static char[]	HEX_CHARS_UPPER Uppercase hex characters.
static java.lang.String	HEX_LOWER
static java.lang.String	HEX_UPPER
static int	MASK Lower nybble mask.
static int	VALUE_LOWERCASE_A
static int	VALUE_UPPERCASE_A

Constructor Summary

Bytes()

Method Summary

static void	hexBytes(byte[] hexBytes, byte[] inBytes, byte[] out, int length) Converts the byte into a two element array of hex characters.
static void	hexBytes(byte[] hexBytes, int inByte, byte[] out) Converts the byte into a two element array of hex characters.
static byte[]	parseHex(java.lang.String hexString) Parses a hex string into an array of bytes.
static byte[]	toBytes(int n, byte[] b) Builds a 4-byte array from an int, MSB first.
static byte[]	toBytes(long n, byte[] b) Builds a 8-byte array from an int, MSB first.

Methods inherited from class java.lang.Object

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

Field Detail

VALUE_UPPERCASE_A

public static final int VALUE_UPPERCASE_A

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Constant Field Values

VALUE_LOWERCASE_A

public static final int VALUE_LOWERCASE_A

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Constant Field Values

HEX_LOWER

public static final java.lang.String HEX_LOWER

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Constant Field Values

HEX_UPPER

public static final java.lang.String HEX_UPPER

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Constant Field Values

HEX_CHARS_LOWER

public static final char[] HEX_CHARS_LOWER

Lowercase hex characters.

HEX_CHARS_UPPER

public static final char[] HEX_CHARS_UPPER

Uppercase hex characters.

HEX_BYTES_LOWER

public static final byte[] HEX_BYTES_LOWER

Lowercase hex characters as bytes.

HEX_BYTES_UPPER

public static final byte[] HEX_BYTES_UPPER

Uppercase hex characters as bytes.

MASK

public static final int MASK

Lower nybble mask.

See Also:

Constant Field Values

Constructor Detail

Bytes

public Bytes()

Method Detail

toBytes

public static byte[] toBytes(int n,
                             byte[] b)

Builds a 4-byte array from an int, MSB first.

Parameters:

n - The number to convert.

b - The output array.

Returns:

The output array (b).

toBytes

public static byte[] toBytes(long n,
                             byte[] b)

Builds a 8-byte array from an int, MSB first.

Parameters:

n - The number to convert.

b - The output array.

Returns:

The output array (b).

hexBytes

public static void hexBytes(byte[] hexBytes,
                            byte[] inBytes,
                            byte[] out,
                            int length)

Converts the byte into a two element array of hex characters.

Parameters:

hexBytes - The hex encoding set to use (e.g. HEX_BYTES_LOWER / HEX_BYTES_UPPER).

inBytes - The input byte array.

length - The number of bytes to convert to hex.

out - The output array of hex bytes. The length of this array must be >= 2 * length.

hexBytes

public static void hexBytes(byte[] hexBytes,
                            int inByte,
                            byte[] out)

Converts the byte into a two element array of hex characters.

Parameters:

hexBytes - The hex character set to use (e.g. HEX_BYTES_LOWER / HEX_BYTES_UPPER).

inByte - The input byte.

out - The output array of characters. Length must be >= 2.

parseHex

public static byte[] parseHex(java.lang.String hexString)

Parses a hex string into an array of bytes.

Parameters:

hexString - the hex string

Returns:

an array of bytes, parsed from the hex string