com.comthings.gollum.api.gollumandroidlib.utils

Class Hex

java.lang.Object

com.comthings.gollum.api.gollumandroidlib.utils.Hex

public class Hex
extends java.lang.Object

Created by Sebastien_Tosello on 18/07/2016. Class qui provient de la 1.8.4 de parse

Field Summary

Fields

Modifier and Type	Field and Description
protected static char[]	hexArray

Constructor Summary

Constructors

Constructor and Description
Hex()

Method Summary

Modifier and Type	Method and Description
static byte[]	binaryStringToByteArray(java.lang.String stream) converts a string of 0s and 1s to a byte array
static java.lang.String	byteArrayToBitString(byte[] a) Convert array of bytes into a binary string of 0s and 1s
static java.lang.String	byteArrayToHexString(byte[] a) Convert array of bytes into a hexadecimal string
static java.lang.String	byteArrayToHexString(byte[] array, int size)
static byte[]	byteListToByteArray(java.util.List<java.lang.Byte> blist) Helper method to convert a list of bytes to an array
static java.lang.String	bytesToHexString(byte[] array, int bufSize) Convert array of bytes into a hexadecimal string
static java.lang.String	byteToBitString(byte n) Converts a byte into binary string
static java.lang.String	byteToHex(byte b) Converts a byte into hexadecimal value
static byte[]	convertTextToData(java.lang.String text) Convert String to byte []
static byte[]	decodeHex(char[] data)
static char[]	encodeHex(byte[] data) Encode a byte array into a char array.
static char[]	encodeHex(byte[] data, boolean toLowerCase) Encode a byte array into a char array.
protected static char[]	encodeHex(byte[] data, char[] toDigits) Encode a byte array into a char array.
static java.lang.String	encodeHexString(byte[] data) Converts a byte array into an hexadecimal string
static byte[]	hexStringToByteArray(java.lang.String s) Convert a String to a byte array
static byte	hexToByte(java.lang.String s) Converts a hexadecimal String value into a byte
protected static int	toDigit(char ch) Returns the numeric value of the character ch in hexadecimal.

Methods inherited from class java.lang.Object

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

Field Detail

hexArray

protected static final char[] hexArray

Constructor Detail

Hex

public Hex()

Method Detail

decodeHex

public static byte[] decodeHex(char[] data)
                        throws java.lang.Exception

Parameters:

data - (Eg. ['a', '9', 'c', ...])

Returns:

{10, 9, 12, ...}

Throws:

java.lang.Exception - In case the number of characters is not even.

encodeHex

public static char[] encodeHex(byte[] data)

Encode a byte array into a char array.

Parameters:

data - Data to be encoded (Eg. {10, 9, 12, ...})

Returns:

Encoded data as a char array (Eg. [ ' a ', ' 9 ', ' c ', ...])

encodeHex

public static char[] encodeHex(byte[] data,
                               boolean toLowerCase)

Encode a byte array into a char array.

Parameters:

data - Data to be encoded (Eg. {10, 9, 12, ...})

toLowerCase - True if result array needs to contains lowercase hexadecimal only.

Returns:

Encoded data as a char array (Eg. [ ' a ', ' 9 ', ' c ', ...])

encodeHex

protected static char[] encodeHex(byte[] data,
                                  char[] toDigits)

Encode a byte array into a char array.

Parameters:

data - Data to be encoded (Eg. {10, 9, 12, ...})

toDigits - Char array of digits to be used on result.

Returns:

Encoded data as a char array (Eg. [ ' a ', ' 9 ', ' c ', ...])

encodeHexString

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

Converts a byte array into an hexadecimal string

Parameters:

data - Array of byte to be converted to a hex string. Eg. {10, 9, 12, ...}

Returns:

an hexadecimal string: "a9c..."

toDigit

protected static int toDigit(char ch)
                      throws java.lang.Exception

Returns the numeric value of the character ch in hexadecimal.

Parameters:

ch - the character to be converted.

Returns:

the numeric value represented by the character in hexadecimal.

Throws:

java.lang.Exception - Illegal hexadecimal character

convertTextToData

public static byte[] convertTextToData(java.lang.String text)
                                throws GollumException

Convert String to byte []

Parameters:

text - string to convert

Returns:

converted string

Throws:

GollumException - Wrong conversion to byte array

bytesToHexString

public static java.lang.String bytesToHexString(byte[] array,
                                                int bufSize)

Convert array of bytes into a hexadecimal string

Parameters:

array - Array of byte to be converted to a hex string

bufSize - Size of bytes array.

Returns:

An hexadecimal string.

byteArrayToHexString

public static java.lang.String byteArrayToHexString(byte[] array,
                                                    int size)

byteArrayToHexString

public static java.lang.String byteArrayToHexString(byte[] a)

Convert array of bytes into a hexadecimal string

Parameters:

a - Array of byte to be converted to a hex string

Returns:

An hexadecimal string.

byteArrayToBitString

public static java.lang.String byteArrayToBitString(byte[] a)

Convert array of bytes into a binary string of 0s and 1s

Parameters:

a - Array of byte to be converted to a binary string

Returns:

a string representing the array in parameter

byteToHex

public static java.lang.String byteToHex(byte b)

Converts a byte into hexadecimal value

Parameters:

b - Byte to convert

Returns:

String with a single hexadecimal value

byteToBitString

public static java.lang.String byteToBitString(byte n)

Converts a byte into binary string

Parameters:

n - Byte to be converted.

Returns:

string of 0s and 1s characters representing the byte given as a parameter

hexToByte

public static byte hexToByte(java.lang.String s)

Converts a hexadecimal String value into a byte

Parameters:

s - String with a single hexadecimal value to convert

Returns:

Byte

hexStringToByteArray

public static byte[] hexStringToByteArray(java.lang.String s)

Convert a String to a byte array

Parameters:

s - String to be converted. Ex. "b64592..."

Returns:

byte array. Ex. [0xB6, 0x45, 0x92, ...]

binaryStringToByteArray

public static byte[] binaryStringToByteArray(java.lang.String stream)

converts a string of 0s and 1s to a byte array

Parameters:

stream - the string to be converted

Returns:

a byte array of the string in parameter

byteListToByteArray

public static byte[] byteListToByteArray(java.util.List<java.lang.Byte> blist)

Helper method to convert a list of bytes to an array

Parameters:

blist - A list of bytes to be converted.

Returns:

bytes array.