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File Content: `ChainUserProvider.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\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;

    public function __construct(array $providers)
    {
        $this->providers = $providers;
    }

    /**
     * @return array
     */
    public function getProviders()
    {
        return $this->providers;
    }

    /**
     * {@inheritDoc}
     */
    public function loadUserByUsername($username)
    {
        foreach ($this->providers as $provider) {
            try {
                return $provider->loadUserByUsername($username);
            } catch (UsernameNotFoundException $notFound) {
                // 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 $unsupported) {
                // try next one
            } catch (UsernameNotFoundException $notFound) {
                $supportedUserFound = true;
                // try next one
            }
        }

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

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

        return false;
    }
}

Name	Size	Permission
AdvancedUserInterface.php	2905 bytes	0644
ChainUserProvider.php	2592 bytes	0644
EquatableInterface.php	1071 bytes	0644
InMemoryUserProvider.php	3092 bytes	0644
User.php	2375 bytes	0644
UserChecker.php	1838 bytes	0644
UserCheckerInterface.php	901 bytes	0644
UserInterface.php	2475 bytes	0644
UserProviderInterface.php	2391 bytes	0644

File Content: ChainUserProvider.php

File Content: `ChainUserProvider.php`