org.springframework.security.authentication

Class AnonymousAuthenticationProvider

java.lang.Object

org.springframework.security.authentication.AnonymousAuthenticationProvider

All Implemented Interfaces:

Aware, MessageSourceAware, AuthenticationProvider

public class AnonymousAuthenticationProvider
extends Object
implements AuthenticationProvider, MessageSourceAware

An AuthenticationProvider implementation that validates AnonymousAuthenticationTokens.

To be successfully validated, the AnonymousAuthenticationToken.getKeyHash() must match this class' getKey().

Field Summary

Fields

Modifier and Type	Field and Description
protected MessageSourceAccessor	messages

Constructor Summary

Constructors

Constructor and Description
AnonymousAuthenticationProvider(String key)

Method Summary

Modifier and Type	Method and Description
Authentication	authenticate(Authentication authentication) Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication) .
String	getKey()
void	setMessageSource(MessageSource messageSource)
boolean	supports(Class<?> authentication) Returns true if this AuthenticationProvider supports the indicated Authentication object.

Methods inherited from class java.lang.Object

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

Field Detail

messages

protected MessageSourceAccessor messages

Constructor Detail

AnonymousAuthenticationProvider

public AnonymousAuthenticationProvider(String key)

Method Detail

authenticate

public Authentication authenticate(Authentication authentication)
                            throws AuthenticationException

Description copied from interface: AuthenticationProvider

Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication) .

Specified by:

authenticate in interface AuthenticationProvider

Parameters:

authentication - the authentication request object.

Returns:

a fully authenticated object including credentials. May return null if the AuthenticationProvider is unable to support authentication of the passed Authentication object. In such a case, the next AuthenticationProvider that supports the presented Authentication class will be tried.

Throws:

AuthenticationException - if authentication fails.

getKey

public String getKey()

setMessageSource

public void setMessageSource(MessageSource messageSource)

Specified by:

setMessageSource in interface MessageSourceAware

supports

public boolean supports(Class<?> authentication)

Description copied from interface: AuthenticationProvider

Returns true if this AuthenticationProvider supports the indicated Authentication object.

Returning true does not guarantee an AuthenticationProvider will be able to authenticate the presented instance of the Authentication class. It simply indicates it can support closer evaluation of it. An AuthenticationProvider can still return null from the AuthenticationProvider.authenticate(Authentication) method to indicate another AuthenticationProvider should be tried.

Selection of an AuthenticationProvider capable of performing authentication is conducted at runtime the ProviderManager.

Specified by:

supports in interface AuthenticationProvider

Returns:

true if the implementation can more closely evaluate the Authentication class presented