com.blazebit.weblink.core.impl.keygenerator

Class StringCodeGenerator

java.lang.Object

com.blazebit.weblink.core.impl.keygenerator.StringCodeGenerator

public class StringCodeGenerator
extends Object

Utility class for generating short strings from numbers by means of a bijection. This is a cleaned up implementation of http://hashids.org v1.0.2 version.

Author:

Christian Beikov

Constructor Summary

Constructors

Constructor and Description
StringCodeGenerator()
StringCodeGenerator(String salt)
StringCodeGenerator(String salt, int minHashLength)
StringCodeGenerator(String salt, int minHashLength, String alphabet)

Method Summary

Modifier and Type	Method and Description
long[]	decode(String hash) Decrypt string to numbers
String	encode(long... numbers) Encrypt numbers to string

Methods inherited from class java.lang.Object

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

Constructor Detail

StringCodeGenerator

public StringCodeGenerator()

StringCodeGenerator

public StringCodeGenerator(String salt)

StringCodeGenerator

public StringCodeGenerator(String salt,
                           int minHashLength)

StringCodeGenerator

public StringCodeGenerator(String salt,
                           int minHashLength,
                           String alphabet)

Method Detail

encode

public String encode(long... numbers)

Encrypt numbers to string

Parameters:

numbers - the numbers to encrypt

Returns:

the encrypt string

decode

public long[] decode(String hash)

Decrypt string to numbers

Parameters:

hash - the encrypt string

Returns:

decryped numbers