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<?php
namespace Symfony\Component\Security\Core\User;
use Symfony\Component\Security\Core\Exception\UnsupportedAccountException;
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
{
protected $providers;
public function __construct(array $providers)
{
$this->providers = $providers;
}
/**
* {@inheritDoc}
*/
public function loadUserByUsername($username)
{
foreach ($this->providers as $provider) {
try {
return $provider->loadUserByUsername($username);
} catch (UsernameNotFoundException $notFound) {
// try next one
}
}
throw new UsernameNotFoundException(sprintf('There is no user with name "%s".', $username));
}
/**
* {@inheritDoc}
*/
public function loadUserByAccount(AccountInterface $account)
{
foreach ($this->providers as $provider) {
try {
return $provider->loadUserByAccount($account);
} catch (UnsupportedAccountException $unsupported) {
// try next one
}
}
throw new UnsupportedAccountException(sprintf('The account "%s" is not supported.', get_class($account)));
}
/**
* {@inheritDoc}
*/
public function supportsClass($class)
{
foreach ($this->providers as $provider) {
if ($provider->supportsClass($class)) {
return true;
}
}
return false;
}
}
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