81 lines
2.0 KiB
PHP
81 lines
2.0 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2014-2020 Spomky-Labs
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*
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* This software may be modified and distributed under the terms
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* of the MIT license. See the LICENSE file for details.
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*/
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namespace Jose\Component\Core;
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use InvalidArgumentException;
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use function is_string;
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class AlgorithmManagerFactory
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{
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/**
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* @var array
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*/
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private $algorithms = [];
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/**
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* Adds an algorithm.
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*
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* Each algorithm is identified by an alias hence it is allowed to have the same algorithm twice (or more).
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* This can be helpful when an algorithm have several configuration options.
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*/
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public function add(string $alias, Algorithm $algorithm): void
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{
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$this->algorithms[$alias] = $algorithm;
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}
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/**
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* Returns the list of aliases.
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*
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* @return string[]
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*/
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public function aliases(): array
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{
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return array_keys($this->algorithms);
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}
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/**
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* Returns all algorithms supported by this factory.
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* This is an associative array. Keys are the aliases of the algorithms.
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*
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* @return Algorithm[]
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*/
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public function all(): array
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{
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return $this->algorithms;
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}
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/**
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* Create an algorithm manager using the given aliases.
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*
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* @param string[] $aliases
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*
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* @throws InvalidArgumentException if the alias is invalid or is not supported
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*/
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public function create(array $aliases): AlgorithmManager
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{
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$algorithms = [];
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foreach ($aliases as $alias) {
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if (!is_string($alias)) {
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throw new InvalidArgumentException('Invalid alias');
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}
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if (!isset($this->algorithms[$alias])) {
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throw new InvalidArgumentException(sprintf('The algorithm with the alias "%s" is not supported.', $alias));
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}
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$algorithms[] = $this->algorithms[$alias];
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}
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return new AlgorithmManager($algorithms);
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}
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}
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