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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Routing\Aspect;
use TYPO3\CMS\Core\Routing\Route;
/**
* Helper class for resolving all aspects that are mappable.
*/
class MappableProcessor
{
public function resolve(Route $route, array &$attributes): bool
{
$mappers = $this->fetchMappers($route, $attributes);
if (empty($mappers)) {
return true;
}
$values = [];
foreach ($mappers as $variableName => $mapper) {
$value = $mapper->resolve(
(string)($attributes[$variableName] ?? '')
);
if ($value === null) {
if (!$mapper instanceof UnresolvedValueInterface || !$mapper->hasFallbackValue()) {
return false;
}
$value = $mapper->getFallbackValue();
}
$values[$variableName] = $value;
}
$attributes = array_merge($attributes, $values);
return true;
}
public function generate(Route $route, array &$attributes): bool
{
$mappers = $this->fetchMappers($route, $attributes);
if (empty($mappers)) {
return true;
}
$values = [];
foreach ($mappers as $variableName => $mapper) {
$value = $mapper->generate(
(string)($attributes[$variableName] ?? '')
);
if ($value === null) {
return false;
}
$values[$variableName] = $value;
}
$attributes = array_merge($attributes, $values);
return true;
}
/**
* @return MappableAspectInterface[]
*/
protected function fetchMappers(Route $route, array $attributes, string $type = MappableAspectInterface::class): array
{
if (empty($attributes)) {
return [];
}
return $route->filterAspects([$type], array_keys($attributes));
}
}