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CachingMetadataFactory.php 2.70 KiB
<?php declare(strict_types=1);
/*
 * This file is part of "irstea/ng-model-generator-bundle".
 * "irstea/ng-model-generator-bundle" generates Typescript interfaces for Angular using api-platform metadata.
 * Copyright (C) 2018-2020 IRSTEA
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License and the GNU
 * Lesser General Public License along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
namespace Irstea\NgModelGeneratorBundle\Metadata;
use Doctrine\Common\Cache\ArrayCache;
use Doctrine\Common\Cache\Cache;
use Irstea\NgModelGeneratorBundle\Models\ClassName;
/**
 * Class CachingMetadataFactory.
final class CachingMetadataFactory implements MetadataFactoryInterface
    /** @var MetadataFactoryInterface */
    private $inner;
    /** @var Cache */
    private $cache;
    /**
     * CachedMetadataFactory constructor.
     * @param MetadataFactoryInterface $inner
     * @param Cache|null               $cache
    public function __construct(MetadataFactoryInterface $inner, Cache $cache = null)
        $this->inner = $inner;
        $this->cache = $cache ?: new ArrayCache();
    /**
     * {@inheritdoc}
    public function isResource(ClassName $class): bool
        return $this->inner->isResource($class);
    /**
     * {@inheritdoc}
    public function getResourceMetadata(ClassName $class): ResourceMetadata
        return $this->memoize(__METHOD__, $class->getFullName(), function () use ($class) {
            return $this->inner->getResourceMetadata($class);
        });
    /**
     * @param string   $namespace
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* @param string $key * @param callable $compute * * @return mixed */ private function memoize(string $namespace, string $key, callable $compute) { $id = $namespace . '@' . $key; if (!$this->cache->contains($id)) { $data = $compute($key); $this->cache->save($id, $data); return $data; } return $this->cache->fetch($id); } /** * {@inheritdoc} */ public function getPaginationMetadata(): PaginationMetadata { return $this->inner->getPaginationMetadata(); } }