net.trajano.ms.vertx.beans

Class TokenGenerator

java.lang.Object

net.trajano.ms.vertx.beans.TokenGenerator

@Component
public class TokenGenerator
extends Object

This is a util module that will be used to generate access tokens. It also exposes the SecureRandom used so it can be utilized in other places to reduce the cost of initialization.

Author:

Archimedes Trajano

Field Summary

Fields

Modifier and Type	Field and Description
private static char[]	ALLOWED_TOKEN_CHARACTERS Only allow letters and numbers, no symbols.
private Random	random
private static int	TOKEN_LENGTH This makes the possible combinations higher than a 256-bit key.

Constructor Summary

Constructors

Constructor and Description
TokenGenerator()

Method Summary

Modifier and Type	Method and Description
void	initializeRandom() Initializes the random source.
String	newToken() Provides a new string useful for keys and access tokens.

Methods inherited from class java.lang.Object

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

Field Detail

ALLOWED_TOKEN_CHARACTERS

private static final char[] ALLOWED_TOKEN_CHARACTERS

Only allow letters and numbers, no symbols. It makes it easier to copy and paste for testing.

TOKEN_LENGTH

private static final int TOKEN_LENGTH

This makes the possible combinations higher than a 256-bit key.

See Also:

Constant Field Values

random

private Random random

Constructor Detail

TokenGenerator

public TokenGenerator()

Method Detail

initializeRandom

@PostConstruct
public void initializeRandom()
                                     throws NoSuchAlgorithmException

Initializes the random source.

Throws:

NoSuchAlgorithmException - this should not happen.

newToken

public String newToken()

Provides a new string useful for keys and access tokens.

Returns:

random string.