117 lines
3.6 KiB
PHP
117 lines
3.6 KiB
PHP
<?php
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/**
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* This file is part of the ramsey/uuid library
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*
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* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
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* @license http://opensource.org/licenses/MIT MIT
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* @link https://benramsey.com/projects/ramsey-uuid/ Documentation
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* @link https://packagist.org/packages/ramsey/uuid Packagist
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* @link https://github.com/ramsey/uuid GitHub
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*/
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namespace Ramsey\Uuid;
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use DateTime;
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use Moontoast\Math\BigNumber;
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use Ramsey\Uuid\Exception\UnsatisfiedDependencyException;
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use Ramsey\Uuid\Exception\UnsupportedOperationException;
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/**
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* DegradedUuid represents an RFC 4122 UUID on 32-bit systems
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*
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* @see Uuid
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*/
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class DegradedUuid extends Uuid
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{
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/**
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* @inheritdoc
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*/
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public function getDateTime()
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{
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if ($this->getVersion() != 1) {
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throw new UnsupportedOperationException('Not a time-based UUID');
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}
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$time = $this->converter->fromHex($this->getTimestampHex());
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$ts = new BigNumber($time, 20);
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$ts->subtract('122192928000000000');
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$ts->divide('10000000.0');
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$ts->floor();
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$unixTime = $ts->getValue();
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return new DateTime("@{$unixTime}");
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}
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/**
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* For degraded UUIDs, throws an `UnsatisfiedDependencyException` when
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* called on a 32-bit system
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*
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* @throws UnsatisfiedDependencyException if called on a 32-bit system
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*/
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public function getFields()
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{
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throw new UnsatisfiedDependencyException(
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'Cannot call ' . __METHOD__ . ' on a 32-bit system, since some '
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. 'values overflow the system max integer value'
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. '; consider calling getFieldsHex instead'
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);
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}
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/**
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* For degraded UUIDs, throws an `UnsatisfiedDependencyException` when
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* called on a 32-bit system
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*
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* @throws UnsatisfiedDependencyException if called on a 32-bit system
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*/
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public function getNode()
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{
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throw new UnsatisfiedDependencyException(
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'Cannot call ' . __METHOD__ . ' on a 32-bit system, since node '
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. 'is an unsigned 48-bit integer and can overflow the system '
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. 'max integer value'
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. '; consider calling getNodeHex instead'
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);
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}
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/**
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* For degraded UUIDs, throws an `UnsatisfiedDependencyException` when
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* called on a 32-bit system
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*
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* @throws UnsatisfiedDependencyException if called on a 32-bit system
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*/
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public function getTimeLow()
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{
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throw new UnsatisfiedDependencyException(
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'Cannot call ' . __METHOD__ . ' on a 32-bit system, since time_low '
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. 'is an unsigned 32-bit integer and can overflow the system '
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. 'max integer value'
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. '; consider calling getTimeLowHex instead'
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);
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}
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/**
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* For degraded UUIDs, throws an `UnsatisfiedDependencyException` when
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* called on a 32-bit system
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*
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* @throws UnsatisfiedDependencyException if called on a 32-bit system
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* @throws UnsupportedOperationException If this UUID is not a version 1 UUID
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*/
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public function getTimestamp()
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{
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if ($this->getVersion() != 1) {
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throw new UnsupportedOperationException('Not a time-based UUID');
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}
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throw new UnsatisfiedDependencyException(
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'Cannot call ' . __METHOD__ . ' on a 32-bit system, since timestamp '
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. 'is an unsigned 60-bit integer and can overflow the system '
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. 'max integer value'
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. '; consider calling getTimestampHex instead'
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);
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}
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}
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