org.jasig.cas.authentication
Class AuthenticationManagerImpl

java.lang.Object
  org.jasig.cas.authentication.AbstractAuthenticationManager
      org.jasig.cas.authentication.AuthenticationManagerImpl

All Implemented Interfaces:

AuthenticationManager

public final class AuthenticationManagerImpl
extends AbstractAuthenticationManager

Default implementation of the AuthenticationManager. The AuthenticationManager follows the following algorithm. The manager loops through the array of AuthenticationHandlers searching for one that can attempt to determine the validity of the credentials. If it finds one, it tries that one. If that handler returns true, it continues on. If it returns false, it looks for another handler. If it throws an exception, it aborts the whole process and rethrows the exception. Next, it looks for a CredentialsToPrincipalResolver that can handle the credentials in order to create a Principal. Finally, it attempts to populate the Authentication object's attributes map using AuthenticationAttributesPopulators

Behavior is determined by external beans attached through three configuration properties. The Credentials are opaque to the manager. They are passed to the external beans to see if any can process the actual type represented by the Credentials marker.

AuthenticationManagerImpl requires the following properties to be set:

• authenticationHandlers - The array of AuthenticationHandlers that know how to process the credentials provided.
• credentialsToPrincipalResolvers - The array of CredentialsToPrincipal resolvers that know how to process the credentials provided.

Since:

3.0

Version:

$Revision: 47522 $ $Date: 2009-12-14 23:33:36 -0500 (Mon, 14 Dec 2009) $

Author:

Scott Battaglia

See Also:

AuthenticationHandler, CredentialsToPrincipalResolver, AuthenticationMetaDataPopulator

Nested Class Summary

Nested classes/interfaces inherited from class org.jasig.cas.authentication.AbstractAuthenticationManager

AbstractAuthenticationManager.Pair<A,B>

Field Summary

Fields inherited from class org.jasig.cas.authentication.AbstractAuthenticationManager

log

Fields inherited from interface org.jasig.cas.authentication.AuthenticationManager

AUTHENTICATION_METHOD_ATTRIBUTE

Constructor Summary

AuthenticationManagerImpl()

Method Summary

protected AbstractAuthenticationManager.Pair<AuthenticationHandler,Principal>	authenticateAndObtainPrincipal(Credentials credentials) Follows the same rules as the "authenticate" method (i.e.
void	setAuthenticationHandlers(java.util.List<AuthenticationHandler> authenticationHandlers)
void	setCredentialsToPrincipalResolvers(java.util.List<CredentialsToPrincipalResolver> credentialsToPrincipalResolvers)

Methods inherited from class org.jasig.cas.authentication.AbstractAuthenticationManager

authenticate, setAuthenticationMetaDataPopulators

Methods inherited from class java.lang.Object

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

Constructor Detail

AuthenticationManagerImpl

public AuthenticationManagerImpl()

Method Detail

authenticateAndObtainPrincipal

protected AbstractAuthenticationManager.Pair<AuthenticationHandler,Principal> authenticateAndObtainPrincipal(Credentials credentials)
                                                                                                      throws AuthenticationException

Description copied from class: AbstractAuthenticationManager

Follows the same rules as the "authenticate" method (i.e. should only return a fully populated object, or throw an exception)

Specified by:

authenticateAndObtainPrincipal in class AbstractAuthenticationManager

Parameters:

credentials - the credentials to check

Returns:

the pair of authentication handler and principal. CANNOT be NULL.

Throws:

AuthenticationException - if there is an error authenticating.

setAuthenticationHandlers

public void setAuthenticationHandlers(java.util.List<AuthenticationHandler> authenticationHandlers)

Parameters:

authenticationHandlers - The authenticationHandlers to set.

setCredentialsToPrincipalResolvers

public void setCredentialsToPrincipalResolvers(java.util.List<CredentialsToPrincipalResolver> credentialsToPrincipalResolvers)

Parameters:

credentialsToPrincipalResolvers - The credentialsToPrincipalResolvers to set.