Package org.xbill.DNS.utils

Class base16

java.lang.Object

org.xbill.DNS.utils.base16

public class base16
extends Object

Routines for converting between Strings of hex-encoded data and arrays of binary data. This is not actually used by DNS.

Author:

Brian Wellington

Method Summary

Modifier and Type	Method	Description
static byte[]	fromString(String str)	Convert a hex-encoded String to binary data, ignoring whitespace characters.
static String	toString(byte[] b)	Convert binary data to a hex-encoded String
static String	toString(byte[] b, int lineLength, String prefix, boolean addClose)	Convert binary data to a hex-encoded string, line-wrapped at lineLength characters.

Methods inherited from class java.lang.Object

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

Method Details

toString

public static String toString(byte[] b)

Convert binary data to a hex-encoded String

Parameters:

b - An array containing binary data

Returns:

A String containing the encoded data

toString

public static String toString(byte[] b,
 int lineLength,
 String prefix,
 boolean addClose)

Convert binary data to a hex-encoded string, line-wrapped at lineLength characters.

Parameters:

b - An array containing binary data

lineLength - The number of characters per line

prefix - A string prefixing the characters on each line

addClose - Whether to add a close parenthesis or not

Returns:

A String containing the encoded data

Since:

3.6

fromString

public static byte[] fromString(String str)

Convert a hex-encoded String to binary data, ignoring whitespace characters.

Returns null

• when str is null,
• when non-hex digits or non-whitespace characters are encountered.

Parameters:

str - A String containing the encoded data.

Returns:

An array containing the binary data, or null if the string is invalid.