Module seppiko.commons.utils

Package org.seppiko.commons.utils.codec

Class Base62

java.lang.Object

org.seppiko.commons.utils.codec.Base62

All Implemented Interfaces:

Serializable

public class Base62
extends Object
implements Serializable

Base62 A simple base62 encode / decode. Similar to base64, typically used in URL shortness.

Author:

Leonard Woo

See Also:

• Base62
• Serialized Form

Method Summary

Modifier and Type	Method	Description
static BigInteger	decode(String str)	Decode Base62 string to number
static byte[]	decodeToBytes(String str)	Decode Base62 string to bytes
static String	encode(byte[] source)	Encode bytes to Base62 string
static String	encode(BigInteger source)	Encode number to Base62 string

Methods inherited from class java.lang.Object

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

Method Details

encode

public static String encode(byte[] source)
                     throws IllegalArgumentException

Encode bytes to Base62 string

Parameters:

source - bytes.

Returns:

Base62 String.

Throws:

IllegalArgumentException - source is empty.

encode

public static String encode(BigInteger source)
                     throws IllegalArgumentException

Encode number to Base62 string

Parameters:

source - Number.

Returns:

Base62 String.

Throws:

IllegalArgumentException - source is negative.

decodeToBytes

public static byte[] decodeToBytes(String str)
                            throws IllegalArgumentException

Decode Base62 string to bytes

Parameters:

str - Base62 String.

Returns:

bytes.

Throws:

IllegalArgumentException - source is null or empty.

decode

public static BigInteger decode(String str)
                         throws IllegalArgumentException

Decode Base62 string to number

Parameters:

str - Base62 String.

Returns:

Number.

Throws:

IllegalArgumentException - string is empty or null.