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author | Max Kostikov <max@kostikov.co> | 2018-09-28 15:46:14 +0200 |
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committer | Max Kostikov <max@kostikov.co> | 2018-09-28 15:46:14 +0200 |
commit | 4a904fa3a8af1c101ede76657249fb7eb47faf60 (patch) | |
tree | 544509813fb68579ef2b556ce879a971d183269a /vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php | |
parent | f5f6ec3d71acb3e0488386819d5060e59331ec23 (diff) | |
parent | c13d7e29ef9676b0f0e4ae23aa52e203f4ad8895 (diff) | |
download | volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.tar.gz volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.tar.bz2 volse-hubzilla-4a904fa3a8af1c101ede76657249fb7eb47faf60.zip |
Merge branch 'patch-29' into 'dev'
Patch 29
See merge request Kostikov/core!3
Diffstat (limited to 'vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php')
-rw-r--r-- | vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php b/vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php new file mode 100644 index 000000000..3257759c9 --- /dev/null +++ b/vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php @@ -0,0 +1,68 @@ +<?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 + * @link https://benramsey.com/projects/ramsey-uuid/ Documentation + * @link https://packagist.org/packages/ramsey/uuid Packagist + * @link https://github.com/ramsey/uuid GitHub + */ +namespace Ramsey\Uuid\Codec; + +use InvalidArgumentException; +use Ramsey\Uuid\UuidInterface; + +/** + * OrderedTimeCodec optimizes the bytes to increment UUIDs when time goes by, to improve database INSERTs. + * The string value will be unchanged from StringCodec. Only works for UUID type 1. + */ +class OrderedTimeCodec extends StringCodec +{ + + /** + * Encodes a UuidInterface as an optimized binary representation of a UUID + * + * @param UuidInterface $uuid + * @return string Binary string representation of a UUID + */ + public function encodeBinary(UuidInterface $uuid) + { + $fields = $uuid->getFieldsHex(); + + $optimized = [ + $fields['time_hi_and_version'], + $fields['time_mid'], + $fields['time_low'], + $fields['clock_seq_hi_and_reserved'], + $fields['clock_seq_low'], + $fields['node'], + ]; + + return hex2bin(implode('', $optimized)); + } + + /** + * Decodes an optimized binary representation of a UUID into a UuidInterface object instance + * + * @param string $bytes + * @return UuidInterface + * @throws \InvalidArgumentException if string has not 16 characters + */ + public function decodeBytes($bytes) + { + if (strlen($bytes) !== 16) { + throw new InvalidArgumentException('$bytes string should contain 16 characters.'); + } + + $hex = unpack('H*', $bytes)[1]; + + // Rearrange the fields to their original order + $hex = substr($hex, 8, 4) . substr($hex, 12, 4) . substr($hex, 4, 4) . substr($hex, 0, 4) . substr($hex, 16); + + return $this->decode($hex); + } +} |