Package ai.bizone.shortuuid

Class Base36Or62

java.lang.Object

ai.bizone.shortuuid.Base36Or62

public class Base36Or62
extends Object

Base36Or62 is a utility class that provides methods to encode and decode numbers using Base36 or Base62 encoding.

Field Summary

Fields

Modifier and Type	Field	Description
private static final BigInteger	BASE_36
private static final BigInteger	BASE_62
private static final String	DIGITS_36
private static final String	DIGITS_36_REGEX
private static final String	DIGITS_62
private static final String	DIGITS_62_REGEX

Constructor Summary

Constructors

Constructor	Description
Base36Or62()

Method Summary

Modifier and Type	Method	Description
(package private) static BigInteger	decode(String string, boolean base62, int bitLimit)	Decodes a string using Base36 encoding.
(package private) static String	encode(BigInteger number, boolean base62)	Encodes a number using Base36 encoding.

Methods inherited from class java.lang.Object

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

Field Details

BASE_62

private static final BigInteger BASE_62

DIGITS_62

private static final String DIGITS_62

See Also:

• Constant Field Values

DIGITS_62_REGEX

private static final String DIGITS_62_REGEX

See Also:

• Constant Field Values

BASE_36

private static final BigInteger BASE_36

DIGITS_36

private static final String DIGITS_36

See Also:

• Constant Field Values

DIGITS_36_REGEX

private static final String DIGITS_36_REGEX

See Also:

• Constant Field Values

Constructor Details

Base36Or62

public Base36Or62()

Method Details

encode

static String encode(BigInteger number,
 boolean base62)

Encodes a number using Base36 encoding.

Parameters:

number - a positive integer

base62 - whether to use Base62 or Base36

Returns:

a Base36 string

Throws:

IllegalArgumentException - if number is a negative integer

decode

static BigInteger decode(String string,
 boolean base62,
 int bitLimit)

Decodes a string using Base36 encoding.

Parameters:

string - a Base36 string

base62 - whether to use Base62 or Base36

bitLimit - amount of bits the number is allowed to have

Returns:

a positive integer

Throws:

IllegalArgumentException - if string is empty