Module de.powerstat.validation

Package de.powerstat.validation.values.strategies

Class UsernameConfigurableStrategy

java.lang.Object

de.powerstat.validation.values.strategies.UsernameConfigurableStrategy

All Implemented Interfaces:

IUsernameStrategy

Direct Known Subclasses:

UsernameDefaultStrategy

public class UsernameConfigurableStrategy
extends Object
implements IUsernameStrategy

Configurable username validation strategy.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	UsernameConfigurableStrategy.HandleEMail	Enum for handling of email addresses.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Map<NTuple4<Integer,Integer,String,UsernameConfigurableStrategy.HandleEMail>,UsernameConfigurableStrategy>	CACHE	Cache for singletons.
private final UsernameConfigurableStrategy.HandleEMail	emailHandling	EMail handling.
private final int	maxLength	Maximum allowed username length.
private final int	minLength	Minimum allowed username length.
private final String	regexp	Regular expression for matching allowed characters.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	UsernameConfigurableStrategy(int minLength, int maxLength, String regexp, UsernameConfigurableStrategy.HandleEMail emailHandling)	Constructor.

Method Summary

Modifier and Type	Method	Description
static IUsernameStrategy	of(int minLength, int maxLength, String regexp, UsernameConfigurableStrategy.HandleEMail emailHandling)	Username validation strategy factory.
boolean	validationStrategy(String username)	Validation strategy.

Methods inherited from class java.lang.Object

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

Field Details

CACHE

private static final Map<NTuple4<Integer,Integer,String,UsernameConfigurableStrategy.HandleEMail>,UsernameConfigurableStrategy> CACHE

Cache for singletons.

minLength

private final int minLength

Minimum allowed username length.

maxLength

private final int maxLength

Maximum allowed username length.

regexp

private final String regexp

Regular expression for matching allowed characters.

emailHandling

private final UsernameConfigurableStrategy.HandleEMail emailHandling

EMail handling. Could be EMAIL_DENIED, EMAIL_REQUIRED or EMAIL_POSSIBLE

Constructor Details

UsernameConfigurableStrategy

protected UsernameConfigurableStrategy(int minLength,
 int maxLength,
 String regexp,
 UsernameConfigurableStrategy.HandleEMail emailHandling)

Constructor.

Parameters:

minLength - Minimum allowed username length, must be >= 1

maxLength - Maximum allowed username length, must be >= minLength and <= INTEGER.MAX_VALUE

regexp - Regular expression for matching characters. Must start with ^ and end with $. Example: ^[@./_0-9a-zA-Z-]+$

emailHandling - How email addresses as username should be handled: EMAIL_DENIED, EMAIL_REQUIRED or EMAIL_POSSIBLE

Throws:

IllegalArgumentException - If arguments are not as required

NullPointerException - If regexp or emailHandling is null

Method Details

of

public static IUsernameStrategy of(int minLength,
 int maxLength,
 String regexp,
 UsernameConfigurableStrategy.HandleEMail emailHandling)

Username validation strategy factory.

Parameters:

minLength - Minimum allowed username length, must be >= 1

maxLength - Maximum allowed username length, must be >= minLength and <= INTEGER.MAX_VALUE

regexp - Regular expression for matching characters. Must start with ^ and end with $. Example: ^[@./_0-9a-zA-Z-]+$

emailHandling - How email addresses as username should be handled: EMAIL_DENIED, EMAIL_REQUIRED or EMAIL_POSSIBLE

Returns:

UsernameStrategy object

Throws:

IllegalArgumentException - If arguments

NullPointerException - If regexp or emailHandling is null

validationStrategy

public boolean validationStrategy(String username)

Validation strategy.

Specified by:

validationStrategy in interface IUsernameStrategy

Parameters:

username - Username

Returns:

true: if username is an email, false otherwise

Throws:

IllegalArgumentException - If the username does not match the configured parameters