<?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\Security\Core\User;

use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;

/**
 * Chain User Provider.
 *
 * This provider calls several leaf providers in a chain until one is able to
 * handle the request.
 *
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class ChainUserProvider implements UserProviderInterface
{
    private $providers;

    /**
     * @param iterable|UserProviderInterface[] $providers
     */
    public function __construct($providers)
    {
        $this->providers = $providers;
    }

    /**
     * @return array
     */
    public function getProviders()
    {
        if ($this->providers instanceof \Traversable) {
            return iterator_to_array($this->providers);
        }

        return $this->providers;
    }

    /**
     * {@inheritdoc}
     */
    public function loadUserByUsername($username)
    {
        foreach ($this->providers as $provider) {
            try {
                return $provider->loadUserByUsername($username);
            } catch (UsernameNotFoundException $e) {
                // try next one
            }
        }

        $ex = new UsernameNotFoundException(sprintf('There is no user with name "%s".', $username));
        $ex->setUsername($username);
        throw $ex;
    }

    /**
     * {@inheritdoc}
     */
    public function refreshUser(UserInterface $user)
    {
        $supportedUserFound = false;

        foreach ($this->providers as $provider) {
            try {
                return $provider->refreshUser($user);
            } catch (UnsupportedUserException $e) {
                // try next one
            } catch (UsernameNotFoundException $e) {
                $supportedUserFound = true;
                // try next one
            }
        }

        if ($supportedUserFound) {
            $e = new UsernameNotFoundException(sprintf('There is no user with name "%s".', $user->getUsername()));
            $e->setUsername($user->getUsername());
            throw $e;
        } else {
            throw new UnsupportedUserException(sprintf('The account "%s" is not supported.', get_class($user)));
        }
    }

    /**
     * {@inheritdoc}
     */
    public function supportsClass($class)
    {
        foreach ($this->providers as $provider) {
            if ($provider->supportsClass($class)) {
                return true;
            }
        }

        return false;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Njk4Mjg3NzYxMjgwODY1MCA3NTMxMDMwMzA5MDYwMTE4IDczMzUyMDI0OTI1NTQzNjY=