Class RemoteAuthenticationProvider

  extended by
All Implemented Interfaces:
org.springframework.beans.factory.InitializingBean, AuthenticationProvider

public class RemoteAuthenticationProvider
extends java.lang.Object
implements AuthenticationProvider, org.springframework.beans.factory.InitializingBean

Client-side object which queries a RemoteAuthenticationManager to validate an authentication request.

A new Authentication object is created by this class comprising the request Authentication object's principal, credentials and the GrantedAuthority[]s returned by the RemoteAuthenticationManager.

The RemoteAuthenticationManager should not require any special username or password setting on the remoting client proxy factory to execute the call. Instead the entire authentication request must be encapsulated solely within the Authentication request object. In practical terms this means the RemoteAuthenticationManager will not be protected by BASIC or any other HTTP-level authentication.

If authentication fails, a RemoteAuthenticationException will be thrown. This exception should be caught and displayed to the user, enabling them to retry with alternative credentials etc.

Constructor Summary
Method Summary
 void afterPropertiesSet()
 Authentication authenticate(Authentication authentication)
          Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication).
 RemoteAuthenticationManager getRemoteAuthenticationManager()
 void setRemoteAuthenticationManager(RemoteAuthenticationManager remoteAuthenticationManager)
 boolean supports(java.lang.Class<? extends java.lang.Object> 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

Constructor Detail


public RemoteAuthenticationProvider()
Method Detail


public void afterPropertiesSet()
                        throws java.lang.Exception
Specified by:
afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean


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
authentication - the authentication request object.
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.
AuthenticationException - if authentication fails.


public RemoteAuthenticationManager getRemoteAuthenticationManager()


public void setRemoteAuthenticationManager(RemoteAuthenticationManager remoteAuthenticationManager)


public boolean supports(java.lang.Class<? extends java.lang.Object> 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
authentication - DOCUMENT ME!
true if the implementation can more closely evaluate the Authentication class presented