home/alospiesjs/www/apis/youtube/vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php000060400000007216151162335710024353 0ustar00 * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid\Codec; use Ramsey\Uuid\Exception\InvalidArgumentException; use Ramsey\Uuid\Exception\UnsupportedOperationException; use Ramsey\Uuid\Rfc4122\FieldsInterface as Rfc4122FieldsInterface; use Ramsey\Uuid\Uuid; use Ramsey\Uuid\UuidInterface; use function strlen; use function substr; /** * OrderedTimeCodec encodes and decodes a UUID, optimizing the byte order for * more efficient storage * * For binary representations of version 1 UUID, this codec may be used to * reorganize the time fields, making the UUID closer to sequential when storing * the bytes. According to Percona, this optimization can improve database * INSERTs and SELECTs using the UUID column as a key. * * The string representation of the UUID will remain unchanged. Only the binary * representation is reordered. * * **PLEASE NOTE:** Binary representations of UUIDs encoded with this codec must * be decoded with this codec. Decoding using another codec can result in * malformed UUIDs. * * @link https://www.percona.com/blog/2014/12/19/store-uuid-optimized-way/ Storing UUID Values in MySQL * * @psalm-immutable */ class OrderedTimeCodec extends StringCodec { /** * Returns a binary string representation of a UUID, with the timestamp * fields rearranged for optimized storage * * @inheritDoc * @psalm-return non-empty-string * @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty * @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty */ public function encodeBinary(UuidInterface $uuid): string { if ( !($uuid->getFields() instanceof Rfc4122FieldsInterface) || $uuid->getFields()->getVersion() !== Uuid::UUID_TYPE_TIME ) { throw new InvalidArgumentException( 'Expected RFC 4122 version 1 (time-based) UUID' ); } $bytes = $uuid->getFields()->getBytes(); /** @phpstan-ignore-next-line PHPStan complains that this is not a non-empty-string. */ return $bytes[6] . $bytes[7] . $bytes[4] . $bytes[5] . $bytes[0] . $bytes[1] . $bytes[2] . $bytes[3] . substr($bytes, 8); } /** * Returns a UuidInterface derived from an ordered-time binary string * representation * * @throws InvalidArgumentException if $bytes is an invalid length * * @inheritDoc */ public function decodeBytes(string $bytes): UuidInterface { if (strlen($bytes) !== 16) { throw new InvalidArgumentException( '$bytes string should contain 16 characters.' ); } // Rearrange the bytes to their original order. $rearrangedBytes = $bytes[4] . $bytes[5] . $bytes[6] . $bytes[7] . $bytes[2] . $bytes[3] . $bytes[0] . $bytes[1] . substr($bytes, 8); $uuid = parent::decodeBytes($rearrangedBytes); if ( !($uuid->getFields() instanceof Rfc4122FieldsInterface) || $uuid->getFields()->getVersion() !== Uuid::UUID_TYPE_TIME ) { throw new UnsupportedOperationException( 'Attempting to decode a non-time-based UUID using ' . 'OrderedTimeCodec' ); } return $uuid; } }