Package io.opentelemetry.api.internal

Class OtelEncodingUtils

java.lang.Object

io.opentelemetry.api.internal.OtelEncodingUtils

@Immutable
public final class OtelEncodingUtils
extends Object

This class is internal and is hence not for public use. Its APIs are unstable and can change at any time.

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	ALPHABET
(package private) static final int	BYTE_BASE16
private static final byte[]	DECODING
private static final char[]	ENCODING
(package private) static final int	LONG_BASE16
(package private) static final int	LONG_BYTES
private static final int	NUM_ASCII_CHARACTERS
private static final boolean[]	VALID_HEX

Constructor Summary

Constructors

Modifier	Constructor	Description
private	OtelEncodingUtils()

Method Summary

Modifier and Type	Method	Description
private static byte[]	buildDecodingArray()
private static char[]	buildEncodingArray()
private static boolean[]	buildValidHexArray()
static byte	byteFromBase16(char first, char second)	Decodes the specified two character sequence, and returns the resulting byte.
static byte[]	bytesFromBase16(CharSequence value, int length)	Returns the byte[] decoded from the given hex CharSequence.
static void	bytesFromBase16(CharSequence value, int length, byte[] bytes)	Fills bytes with bytes decoded from the given hex CharSequence.
static void	bytesToBase16(byte[] bytes, char[] dest, int length)	Fills dest with the hex encoding of bytes.
static void	byteToBase16(byte value, char[] dest, int destOffset)	Encodes the specified byte, and returns the encoded String.
static boolean	isValidBase16Character(char b)	Returns whether the given char is a valid hex character.
static boolean	isValidBase16String(CharSequence value)	Returns whether the CharSequence is a valid hex string.
static long	longFromBase16String(CharSequence chars, int offset)	Returns the long value whose base16 representation is stored in the first 16 chars of chars starting from the offset.
static void	longToBase16String(long value, char[] dest, int destOffset)	Appends the base16 encoding of the specified value to the dest.

Methods inherited from class java.lang.Object

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

Field Details

LONG_BYTES

static final int LONG_BYTES

See Also:

• Constant Field Values

BYTE_BASE16

static final int BYTE_BASE16

See Also:

• Constant Field Values

LONG_BASE16

static final int LONG_BASE16

See Also:

• Constant Field Values

ALPHABET

private static final String ALPHABET

See Also:

• Constant Field Values

NUM_ASCII_CHARACTERS

private static final int NUM_ASCII_CHARACTERS

See Also:

• Constant Field Values

ENCODING

private static final char[] ENCODING

DECODING

private static final byte[] DECODING

VALID_HEX

private static final boolean[] VALID_HEX

Constructor Details

OtelEncodingUtils

private OtelEncodingUtils()

Method Details

buildEncodingArray

private static char[] buildEncodingArray()

buildDecodingArray

private static byte[] buildDecodingArray()

buildValidHexArray

private static boolean[] buildValidHexArray()

longFromBase16String

public static long longFromBase16String(CharSequence chars,
 int offset)

Returns the long value whose base16 representation is stored in the first 16 chars of chars starting from the offset.

Parameters:

chars - the base16 representation of the long.

offset - the starting offset in the CharSequence.

longToBase16String

public static void longToBase16String(long value,
 char[] dest,
 int destOffset)

Appends the base16 encoding of the specified value to the dest.

Parameters:

value - the value to be converted.

dest - the destination char array.

destOffset - the starting offset in the destination char array.

bytesFromBase16

public static byte[] bytesFromBase16(CharSequence value,
 int length)

Returns the byte[] decoded from the given hex CharSequence.

bytesFromBase16

public static void bytesFromBase16(CharSequence value,
 int length,
 byte[] bytes)

Fills bytes with bytes decoded from the given hex CharSequence.

bytesToBase16

public static void bytesToBase16(byte[] bytes,
 char[] dest,
 int length)

Fills dest with the hex encoding of bytes.

byteToBase16

public static void byteToBase16(byte value,
 char[] dest,
 int destOffset)

Encodes the specified byte, and returns the encoded String.

Parameters:

value - the value to be converted.

dest - the destination char array.

destOffset - the starting offset in the destination char array.

byteFromBase16

public static byte byteFromBase16(char first,
 char second)

Decodes the specified two character sequence, and returns the resulting byte.

Parameters:

first - the first hex character.

second - the second hex character.

Returns:

the resulting byte

isValidBase16String

public static boolean isValidBase16String(CharSequence value)

Returns whether the CharSequence is a valid hex string.

isValidBase16Character

public static boolean isValidBase16Character(char b)

Returns whether the given char is a valid hex character.