<?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\Acl\Domain;

use Symfony\Component\Security\Acl\Model\SecurityIdentityInterface;

use Symfony\Component\Security\Core\Role\Role;

/**

 * A SecurityIdentity implementation for roles

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 */

final class RoleSecurityIdentity implements SecurityIdentityInterface

{

    private $role;

    /**

     * Constructor

     *

     * @param mixed $role a Role instance, or its string representation

     * @return void

     */

    public function __construct($role)

    {

        if ($role instanceof Role) {

            $role = $role->getRole();

        }

        $this->role = $role;

    }

    /**

     * Returns the role name

     *

     * @return string

     */

    public function getRole()

    {

        return $this->role;

    }

    /**

     * {@inheritDoc}

     */

    public function equals(SecurityIdentityInterface $sid)

    {

        if (!$sid instanceof RoleSecurityIdentity) {

            return false;

        }

        return $this->role === $sid->getRole();

    }

    /**

     * Returns a textual representation of this security identity.

     *

     * This is solely used for debugging purposes, not to make an equality decision.

     *

     * @return string

     */

    public function __toString()

    {

        return sprintf('RoleSecurityIdentity(%s)', $this->role);

    }

}