org.wildfly.security.auth.server

Interface EvidenceDecoder

All Superinterfaces:

Function<Evidence,Principal>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface EvidenceDecoder
extends Function<Evidence,Principal>

A decoder for extracting a principal from evidence.

Since:

1.10.0

Author:

Farah Juma

Method Summary

Modifier and Type	Method and Description
static EvidenceDecoder	aggregate(EvidenceDecoder... decoders) Create an aggregated evidence decoder.
default Principal	apply(Evidence evidence)
Principal	getPrincipal(Evidence evidence) Get the principal from the given evidence.

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Method Detail

getPrincipal

Principal getPrincipal(Evidence evidence)

Get the principal from the given evidence. If this decoder does not understand the given evidence, null is returned.

Parameters:

evidence - the evidence to decode

Returns:

the principal, or null if this decoder does not understand the evidence

apply

default Principal apply(Evidence evidence)

Specified by:

apply in interface Function<Evidence,Principal>

aggregate

static EvidenceDecoder aggregate(EvidenceDecoder... decoders)

Create an aggregated evidence decoder. The aggregated decoder will try each evidence decoder until one returns a non-null value. If all the evidence decoders return null, then null will be returned.

Parameters:

decoders - the constituent decoders

Returns:

the aggregated decoder