vendor/symfony/symfony/src/Symfony/Bridge/Doctrine/Security/User/EntityUserProvider.php

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<?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\Bridge\Doctrine\Security\User;

use Doctrine\Common\Persistence\ManagerRegistry;
use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Core\User\UserInterface;

/**
 * Wrapper around a Doctrine ObjectManager.
 *
 * Provides easy to use provisioning for Doctrine entity users.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class EntityUserProvider implements UserProviderInterface
{
    private $registry;
    private $managerName;
    private $classOrAlias;
    private $class;
    private $property;

    public function __construct(ManagerRegistry $registry, $classOrAlias, $property = null, $managerName = null)
    {
        $this->registry = $registry;
        $this->managerName = $managerName;
        $this->classOrAlias = $classOrAlias;
        $this->property = $property;
    }

    /**
     * {@inheritdoc}
     */
    public function loadUserByUsername($username)
    {
        $repository = $this->getRepository();
        if (null !== $this->property) {
            $user = $repository->findOneBy(array($this->property => $username));
        } else {
            if (!$repository instanceof UserLoaderInterface) {
                if (!$repository instanceof UserProviderInterface) {
                    throw new \InvalidArgumentException(sprintf('You must either make the "%s" entity Doctrine Repository ("%s") implement "Symfony\Bridge\Doctrine\Security\User\UserLoaderInterface" or set the "property" option in the corresponding entity provider configuration.', $this->classOrAlias, get_class($repository)));
                }

                @trigger_error('Implementing Symfony\Component\Security\Core\User\UserProviderInterface in a Doctrine repository when using the entity provider is deprecated since version 2.8 and will not be supported in 3.0. Make the repository implement Symfony\Bridge\Doctrine\Security\User\UserLoaderInterface instead.', E_USER_DEPRECATED);
            }