net.unicon.cas.mfa.authentication

Class OrderedMultiFactorMethodRankingStrategy

java.lang.Object

net.unicon.cas.mfa.authentication.OrderedMultiFactorMethodRankingStrategy

All Implemented Interfaces:

RequestedAuthenticationMethodRankingStrategy

public class OrderedMultiFactorMethodRankingStrategy
extends Object
implements RequestedAuthenticationMethodRankingStrategy

Ranking strategy implementation that utilizes Ordered abstraction of MultiFactorAuthenticationRequestContext.

Author:

Dmitriy Kopylenko, Unicon, inc.

Constructor Summary

Constructors

Constructor and Description
OrderedMultiFactorMethodRankingStrategy(AuthenticationMethodConfigurationProvider authenticationMethodConfiguration) Ctor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	anyPreviouslyAchievedAuthenticationMethodsStrongerThanRequestedOne(Set<String> previouslyAchievedAuthenticationMethods, String requestedAuthenticationMethod) Determine if provided list of previously achieved authentication methods contains any one method stronger than currently requested one.
MultiFactorAuthenticationSupportingWebApplicationService	computeHighestRankingAuthenticationMethod(MultiFactorAuthenticationTransactionContext mfaTransaction) Calculates the highest ranking possible authentication method from the list of the requested ones.
protected List<MultiFactorAuthenticationRequestContext>	sortRequests(List<MultiFactorAuthenticationRequestContext> sortedRequests) Sort the list of requests.

Methods inherited from class java.lang.Object

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

Constructor Detail

OrderedMultiFactorMethodRankingStrategy

public OrderedMultiFactorMethodRankingStrategy(AuthenticationMethodConfigurationProvider authenticationMethodConfiguration)

Ctor.

Parameters:

authenticationMethodConfiguration - the authentication method loader

Method Detail

computeHighestRankingAuthenticationMethod

public MultiFactorAuthenticationSupportingWebApplicationService computeHighestRankingAuthenticationMethod(@NotNull
                                                                                                 MultiFactorAuthenticationTransactionContext mfaTransaction)

Description copied from interface: RequestedAuthenticationMethodRankingStrategy

Calculates the highest ranking possible authentication method from the list of the requested ones.

Specified by:

computeHighestRankingAuthenticationMethod in interface RequestedAuthenticationMethodRankingStrategy

Parameters:

mfaTransaction - mfa transaction encapsulating possible requested authentication methods

Returns:

mfa service representing the highest possible ranking authentication method or null if implementations are unable to perform such calculation

sortRequests

protected List<MultiFactorAuthenticationRequestContext> sortRequests(List<MultiFactorAuthenticationRequestContext> sortedRequests)

Sort the list of requests.

Parameters:

sortedRequests - the sorted requests

Returns:

the list

anyPreviouslyAchievedAuthenticationMethodsStrongerThanRequestedOne

public boolean anyPreviouslyAchievedAuthenticationMethodsStrongerThanRequestedOne(Set<String> previouslyAchievedAuthenticationMethods,
                                                                         String requestedAuthenticationMethod)

Description copied from interface: RequestedAuthenticationMethodRankingStrategy

Determine if provided list of previously achieved authentication methods contains any one method stronger than currently requested one. The algorithm and configuration of the ranking strength of the authentication methods should be provided by implementations.

Specified by:

anyPreviouslyAchievedAuthenticationMethodsStrongerThanRequestedOne in interface RequestedAuthenticationMethodRankingStrategy

Parameters:

previouslyAchievedAuthenticationMethods - set of previously achieved authentication methods

requestedAuthenticationMethod - requestedAuthenticationMethod

Returns:

true if list contains any methods stronger than requested one, and false otherwise