StaticMethodLoader.php

<?php


/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Validator\Mapping\Loader;

use Symfony\Component\Validator\Exception\MappingException;
use Symfony\Component\Validator\Mapping\ClassMetadata;

/**
 * Loads validation metadata by calling a static method on the loaded class.
 *
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
class StaticMethodLoader implements LoaderInterface {
    
    /**
     * Creates a new loader.
     *
     * @param string $methodName The name of the static method to call
     */
    public function __construct(string $methodName = 'loadValidatorMetadata') {
    }
    public function loadClassMetadata(ClassMetadata $metadata) : bool {
        
        /** @var \ReflectionClass $reflClass */
        $reflClass = $metadata->getReflectionClass();
        if (!$reflClass->isInterface() && $reflClass->hasMethod($this->methodName)) {
            $reflMethod = $reflClass->getMethod($this->methodName);
            if ($reflMethod->isAbstract()) {
                return false;
            }
            if (!$reflMethod->isStatic()) {
                throw new MappingException(\sprintf('The method "%s::%s()" should be static.', $reflClass->name, $this->methodName));
            }
            if ($reflMethod->getDeclaringClass()->name != $reflClass->name) {
                return false;
            }
            $reflMethod->invoke(null, $metadata);
            return true;
        }
        return false;
    }

}