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vendor/ramsey/uuid/src/UuidFactory.php
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292
vendor/ramsey/uuid/src/UuidFactory.php
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<?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 Ramsey\Uuid\Converter\NumberConverterInterface;
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use Ramsey\Uuid\Provider\NodeProviderInterface;
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use Ramsey\Uuid\Generator\RandomGeneratorInterface;
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use Ramsey\Uuid\Generator\TimeGeneratorInterface;
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use Ramsey\Uuid\Codec\CodecInterface;
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use Ramsey\Uuid\Builder\UuidBuilderInterface;
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class UuidFactory implements UuidFactoryInterface
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{
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/**
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* @var CodecInterface
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*/
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private $codec = null;
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/**
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* @var NodeProviderInterface
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*/
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private $nodeProvider = null;
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/**
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* @var NumberConverterInterface
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*/
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private $numberConverter = null;
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/**
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* @var RandomGeneratorInterface
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*/
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private $randomGenerator = null;
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/**
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* @var TimeGeneratorInterface
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*/
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private $timeGenerator = null;
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/**
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* @var UuidBuilderInterface
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*/
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private $uuidBuilder = null;
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/**
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* Constructs a `UuidFactory` for creating `Ramsey\Uuid\UuidInterface` instances
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*
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* @param FeatureSet $features A set of features for use when creating UUIDs
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*/
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public function __construct(FeatureSet $features = null)
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{
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$features = $features ?: new FeatureSet();
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$this->codec = $features->getCodec();
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$this->nodeProvider = $features->getNodeProvider();
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$this->numberConverter = $features->getNumberConverter();
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$this->randomGenerator = $features->getRandomGenerator();
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$this->timeGenerator = $features->getTimeGenerator();
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$this->uuidBuilder = $features->getBuilder();
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}
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/**
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* Returns the UUID coder-decoder used by this factory
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*
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* @return CodecInterface
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*/
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public function getCodec()
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{
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return $this->codec;
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}
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/**
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* Sets the UUID coder-decoder used by this factory
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*
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* @param CodecInterface $codec
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*/
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public function setCodec(CodecInterface $codec)
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{
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$this->codec = $codec;
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}
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/**
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* Returns the system node ID provider used by this factory
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*
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* @return NodeProviderInterface
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*/
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public function getNodeProvider()
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{
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return $this->nodeProvider;
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}
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/**
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* Returns the random UUID generator used by this factory
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*
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* @return RandomGeneratorInterface
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*/
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public function getRandomGenerator()
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{
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return $this->randomGenerator;
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}
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/**
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* Returns the time-based UUID generator used by this factory
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*
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* @return TimeGeneratorInterface
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*/
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public function getTimeGenerator()
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{
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return $this->timeGenerator;
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}
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/**
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* Sets the time-based UUID generator this factory will use to generate version 1 UUIDs
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*
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* @param TimeGeneratorInterface $generator
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*/
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public function setTimeGenerator(TimeGeneratorInterface $generator)
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{
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$this->timeGenerator = $generator;
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}
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/**
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* Returns the number converter used by this factory
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*
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* @return NumberConverterInterface
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*/
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public function getNumberConverter()
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{
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return $this->numberConverter;
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}
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/**
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* Sets the random UUID generator this factory will use to generate version 4 UUIDs
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*
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* @param RandomGeneratorInterface $generator
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*/
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public function setRandomGenerator(RandomGeneratorInterface $generator)
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{
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$this->randomGenerator = $generator;
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}
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/**
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* Sets the number converter this factory will use
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*
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* @param NumberConverterInterface $converter
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*/
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public function setNumberConverter(NumberConverterInterface $converter)
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{
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$this->numberConverter = $converter;
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}
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/**
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* Returns the UUID builder this factory uses when creating `Uuid` instances
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*
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* @return UuidBuilderInterface $builder
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*/
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public function getUuidBuilder()
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{
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return $this->uuidBuilder;
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}
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/**
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* Sets the UUID builder this factory will use when creating `Uuid` instances
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*
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* @param UuidBuilderInterface $builder
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*/
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public function setUuidBuilder(UuidBuilderInterface $builder)
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{
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$this->uuidBuilder = $builder;
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}
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public function fromBytes($bytes)
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{
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return $this->codec->decodeBytes($bytes);
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}
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public function fromString($uuid)
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{
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$uuid = strtolower($uuid);
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return $this->codec->decode($uuid);
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}
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public function fromInteger($integer)
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{
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$hex = $this->numberConverter->toHex($integer);
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$hex = str_pad($hex, 32, '0', STR_PAD_LEFT);
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return $this->fromString($hex);
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}
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public function uuid1($node = null, $clockSeq = null)
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{
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$bytes = $this->timeGenerator->generate($node, $clockSeq);
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$hex = bin2hex($bytes);
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return $this->uuidFromHashedName($hex, 1);
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}
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public function uuid3($ns, $name)
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{
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return $this->uuidFromNsAndName($ns, $name, 3, 'md5');
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}
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public function uuid4()
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{
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$bytes = $this->randomGenerator->generate(16);
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// When converting the bytes to hex, it turns into a 32-character
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// hexadecimal string that looks a lot like an MD5 hash, so at this
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// point, we can just pass it to uuidFromHashedName.
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$hex = bin2hex($bytes);
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return $this->uuidFromHashedName($hex, 4);
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}
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public function uuid5($ns, $name)
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{
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return $this->uuidFromNsAndName($ns, $name, 5, 'sha1');
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}
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/**
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* Returns a `Uuid`
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*
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* Uses the configured builder and codec and the provided array of hexadecimal
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* value UUID fields to construct a `Uuid` object.
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*
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* @param array $fields An array of fields from which to construct a UUID;
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* see {@see \Ramsey\Uuid\UuidInterface::getFieldsHex()} for array structure.
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* @return UuidInterface
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*/
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public function uuid(array $fields)
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{
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return $this->uuidBuilder->build($this->codec, $fields);
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}
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/**
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* Returns a version 3 or 5 namespaced `Uuid`
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*
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* @param string|UuidInterface $ns The UUID namespace to use
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* @param string $name The string to hash together with the namespace
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* @param int $version The version of UUID to create (3 or 5)
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* @param string $hashFunction The hash function to use when hashing together
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* the namespace and name
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* @return UuidInterface
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*/
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protected function uuidFromNsAndName($ns, $name, $version, $hashFunction)
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{
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if (!($ns instanceof UuidInterface)) {
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$ns = $this->codec->decode($ns);
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}
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$hash = call_user_func($hashFunction, ($ns->getBytes() . $name));
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return $this->uuidFromHashedName($hash, $version);
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}
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/**
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* Returns a `Uuid` created from `$hash` with the version field set to `$version`
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* and the variant field set for RFC 4122
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*
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* @param string $hash The hash to use when creating the UUID
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* @param int $version The UUID version to set for this hash (1, 3, 4, or 5)
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* @return UuidInterface
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*/
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protected function uuidFromHashedName($hash, $version)
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{
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$timeHi = BinaryUtils::applyVersion(substr($hash, 12, 4), $version);
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$clockSeqHi = BinaryUtils::applyVariant(hexdec(substr($hash, 16, 2)));
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$fields = array(
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'time_low' => substr($hash, 0, 8),
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'time_mid' => substr($hash, 8, 4),
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'time_hi_and_version' => str_pad(dechex($timeHi), 4, '0', STR_PAD_LEFT),
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'clock_seq_hi_and_reserved' => str_pad(dechex($clockSeqHi), 2, '0', STR_PAD_LEFT),
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'clock_seq_low' => substr($hash, 18, 2),
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'node' => substr($hash, 20, 12),
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);
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return $this->uuid($fields);
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}
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}
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