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<?php |
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/** |
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* Created by IntelliJ IDEA. |
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* User: gerk |
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* Date: 14.04.17 |
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* Time: 22:40 |
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*/ |
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namespace PeekAndPoke\Component\Slumber\Data\Addon\PublicReference; |
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use PeekAndPoke\Component\Slumber\Data\Error\DuplicateError; |
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use PeekAndPoke\Component\Slumber\Data\Repository; |
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/** |
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* @author Karsten J. Gerber <[email protected]> |
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*/ |
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class PublicReferenceGeneratorImpl implements PublicReferenceGenerator |
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{ |
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public static $REDUCED_UPPER_CHARS = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'V', 'W', 'X', 'Y', 'Z']; |
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/** @var Repository */ |
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private $repository; |
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/** @var string */ |
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private $pattern; |
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/** @var array */ |
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private $cls2pattern; |
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/** |
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* PublicReferenceGeneratorImpl constructor. |
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* |
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* @param Repository $repository |
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* @param string $pattern |
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* @param array $cls2pattern |
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*/ |
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public function __construct(Repository $repository, $pattern = '$$-__-########', array $cls2pattern = []) |
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{ |
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$this->repository = $repository; |
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$this->pattern = $pattern; |
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$this->cls2pattern = $cls2pattern; |
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} |
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/** |
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* @param mixed $subject The object to create a public unique reference for |
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* |
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* @return null|string |
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*/ |
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public function create($subject) |
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{ |
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if (! \is_object($subject)) { |
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return null; |
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} |
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$reflect = new \ReflectionClass($subject); |
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$pattern = $this->cls2pattern[$reflect->name] ?? $this->pattern; |
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$tries = 1000; |
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while (--$tries >= 0) { |
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$new = $this->generate($pattern, $reflect->getShortName()); |
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try { |
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$this->repository->insert((new PublicReference())->setId($new)); |
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return $new; |
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} catch (DuplicateError $e) { |
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} |
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} |
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throw new \RuntimeException('Could not generate a unique public reference'); |
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} |
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/** |
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* @param string $pattern |
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* @param string $className |
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* |
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* @return string |
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*/ |
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private function generate($pattern, $className) |
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{ |
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$ret = ''; |
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$classNameIdx = 0; |
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$patternLength = \strlen($pattern); |
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for ($i = 0; $i < $patternLength; $i++) { |
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$char = $pattern[$i]; |
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switch ($char) { |
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case '_': |
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$ret .= self::$REDUCED_UPPER_CHARS[random_int(0, \count(static::$REDUCED_UPPER_CHARS) - 1)]; |
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break; |
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case '#': |
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$ret .= random_int(0, 9); |
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break; |
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case '$': |
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$ret .= strtoupper($className[$classNameIdx++]); |
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break; |
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default: |
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$ret .= $char; |
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break; |
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} |
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} |
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return $ret; |
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} |
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} |
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