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<?php |
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declare(strict_types=1); |
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namespace LibraryCatalog\Infrastructure\Persistence; |
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use LibraryCatalog\Entity\Book; |
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use LibraryCatalog\Service\Repository\BookRepositoryInterface; |
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use LibraryCatalog\Service\Repository\RedisTrait; |
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use LibraryCatalog\Service\Repository\SerializerTrait; |
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use LibraryCatalog\Service\Repository\WarmRepositoryInterface; |
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use LibraryCatalog\Transformer\Serializer; |
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use Predis\Client; |
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class BookRepositoryRedis implements BookRepositoryInterface, WarmRepositoryInterface |
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{ |
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use SerializerTrait; |
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use RedisTrait; |
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protected const LOCK_TTL = 5; |
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/** @var BookRepositoryInterface|null */ |
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protected ?BookRepositoryInterface $parentRepository; |
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/** @var Client */ |
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protected Client $client; |
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/** @var string */ |
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protected string $keyPrefix; |
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public function __construct( |
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?BookRepositoryInterface $parentRepository, |
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Serializer $serializer, |
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Client $client, |
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string $versionPrefix |
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) { |
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$this->parentRepository = $parentRepository; |
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$this->serializer = $serializer; |
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$this->client = $client; |
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$this->keyPrefix = $versionPrefix === '' ? '' : $versionPrefix . '-'; |
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} |
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/** |
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* @param mixed $id |
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* @param bool $withAuthor |
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* @return Book|null |
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* @throws Serializer\Exception |
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* @throws Serializer\HydrateException |
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* @throws \LibraryCatalog\Transformer\Encoder\Exception |
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* @throws \Throwable |
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*/ |
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public function load($id, bool $withAuthor = false): ?Book |
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{ |
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if ($id == '') { |
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return null; |
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} |
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$data = $this->client->get($this->formatKey($id, $withAuthor)); |
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if ($withAuthor && !$data) { |
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// Try to load from cache but without author. |
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$data = $this->client->get($this->formatKey($id, false)); |
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$wasReloaded = true; |
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} |
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$book = $this->deserialize($data, Book::class); |
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if ($withAuthor && !isset($wasReloaded) && $book) { |
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// It means we got books from cache also, should mark in the entity. |
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$book->setAuthor($book->author); |
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} |
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// We use parent Repository (usually DB) if data is not present or has invalidated by prefix. |
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if (!$book && $this->parentRepository instanceof BookRepositoryInterface) { |
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// Implement lock to make other request waiting for cache warming. |
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$book = $this->transaction( |
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$this->client, |
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$this->keyPrefix . 'lock-book-' . $id, |
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static::LOCK_TTL, |
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function () use ($id) { |
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$book = $this->parentRepository->load($id); |
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// And after that we can warm our temporary-storage. |
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if ($book) { |
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try { |
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$this->saveInternal($book); |
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} catch (\LibraryCatalog\Service\Repository\Exception $e) { |
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// @todo Log |
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// Return result as we can live with parent storage only. |
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} |
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} |
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return $book; |
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} |
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); |
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} |
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return $book; |
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} |
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/** |
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* @param mixed $authorId |
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* @return Book[] |
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*/ |
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public function loadByAuthorId($authorId): array |
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{ |
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// As a cache repository it does not search. |
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return $this->parentRepository->loadByAuthorId($authorId); |
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} |
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/** |
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* @param Book $book |
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* @throws Serializer\HydrateException |
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* @throws \LibraryCatalog\Service\Repository\Exception |
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* @throws \LibraryCatalog\Transformer\Encoder\Exception |
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*/ |
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public function save(Book $book): void |
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{ |
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// First save to parent repository (DB). |
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if ($this->parentRepository) { |
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$this->parentRepository->save($book); |
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} |
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$this->saveInternal($book); |
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} |
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/** |
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* @param object $object |
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* @throws Serializer\HydrateException |
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* @throws \LibraryCatalog\Service\Repository\Exception |
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* @throws \LibraryCatalog\Transformer\Encoder\Exception |
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*/ |
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public function warm(object $object): void |
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{ |
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if ($object instanceof Book) { |
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$this->saveInternal($object); |
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} |
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if ($this->parentRepository instanceof WarmRepositoryInterface) { |
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$this->parentRepository->warm($object); |
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} |
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} |
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/** |
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* @param mixed $id |
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* @throws \LibraryCatalog\Service\Repository\Exception |
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*/ |
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public function reset($id): void |
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{ |
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if ($id != '') { |
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$this->client->del([ |
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$this->formatKey($id, true), |
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$this->formatKey($id, false), |
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]); |
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if ($this->parentRepository instanceof WarmRepositoryInterface) { |
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$this->parentRepository->reset($id); |
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} |
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} |
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} |
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/** |
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* Saves only in current repository. |
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* |
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* @param Book $book |
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* @return void |
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* @throws Serializer\HydrateException |
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* @throws \LibraryCatalog\Transformer\Encoder\Exception |
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* @throws \LibraryCatalog\Service\Repository\Exception |
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*/ |
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4 |
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protected function saveInternal(Book $book): void |
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{ |
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if ($book->id) { |
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if ( |
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!$this->client->set( |
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$this->formatKey($book->id, $book->isAuthorLoaded()), |
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$this->serializer->serialize($book) |
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) |
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) { |
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throw new \LibraryCatalog\Service\Repository\Exception("Can not save Book to the Redis"); |
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} |
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} |
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} |
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/** |
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* @param mixed $id |
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* @param bool $withIncludes |
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* @return string |
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*/ |
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protected function formatKey($id, bool $withIncludes): string |
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{ |
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$res = $this->keyPrefix . 'book-'; |
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if ($withIncludes) { |
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$res .= 'wi-'; |
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} |
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return $res . $id; |
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} |
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} |
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alex-foleon /
service-library-catalog-php
Loading history...
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.