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Direktori : /home2/selectio/www/3-idiots/vendor/ramsey/uuid/src/Provider/Node/ |
Current File : /home2/selectio/www/3-idiots/vendor/ramsey/uuid/src/Provider/Node/StaticNodeProvider.php |
<?php /** * This file is part of the ramsey/uuid library * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. * * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com> * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid\Provider\Node; use Ramsey\Uuid\Exception\InvalidArgumentException; use Ramsey\Uuid\Provider\NodeProviderInterface; use Ramsey\Uuid\Type\Hexadecimal; use function dechex; use function hexdec; use function str_pad; use function substr; use const STR_PAD_LEFT; /** * StaticNodeProvider provides a static node value with the multicast bit set * * @link http://tools.ietf.org/html/rfc4122#section-4.5 RFC 4122, ยง 4.5: Node IDs that Do Not Identify the Host */ class StaticNodeProvider implements NodeProviderInterface { private Hexadecimal $node; /** * @param Hexadecimal $node The static node value to use */ public function __construct(Hexadecimal $node) { if (strlen($node->toString()) > 12) { throw new InvalidArgumentException( 'Static node value cannot be greater than 12 hexadecimal characters' ); } $this->node = $this->setMulticastBit($node); } public function getNode(): Hexadecimal { return $this->node; } /** * Set the multicast bit for the static node value */ private function setMulticastBit(Hexadecimal $node): Hexadecimal { $nodeHex = str_pad($node->toString(), 12, '0', STR_PAD_LEFT); $firstOctet = substr($nodeHex, 0, 2); $firstOctet = str_pad( dechex(hexdec($firstOctet) | 0x01), 2, '0', STR_PAD_LEFT ); return new Hexadecimal($firstOctet . substr($nodeHex, 2)); } }