ReflectionService.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Extbase\Reflection;
 
use ‪TYPO3\CMS\Core\Cache\CacheManager;
use ‪TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException;
use ‪TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Information\Typo3Version;
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Extbase\Reflection\Exception\UnknownClassException;
 
class ‪ReflectionService implements ‪SingletonInterface
{
    private static ‪$cacheEntryIdentifier;
 
    protected ‪$dataCache;
 
    protected ‪$dataCacheNeedsUpdate = false;
 
    protected ‪$classSchemata = [];
 
    private ‪$cachingEnabled = false;
 
    public function ‪__construct(‪CacheManager $cacheManager = null)
    {
        if ($cacheManager instanceof ‪CacheManager) {
            try {
                $this->dataCache = $cacheManager->getCache('extbase');
                $this->cachingEnabled = true;
            } catch (‪NoSuchCacheException $ignoredException) {
                $this->cachingEnabled = false;
            }
 
            if ($this->cachingEnabled) {
                static::$cacheEntryIdentifier = 'ClassSchemata_' . sha1((string)(new ‪Typo3Version()) . ‪Environment::getProjectPath());
                if ((‪$classSchemata = $this->dataCache->get(static::$cacheEntryIdentifier)) !== false) {
                    $this->classSchemata = ‪$classSchemata;
                }
            }
        }
    }
 
    public function ‪__destruct()
    {
        if ($this->dataCacheNeedsUpdate && $this->cachingEnabled) {
            $this->dataCache->set(static::$cacheEntryIdentifier, $this->classSchemata);
        }
    }
 
    public function ‪getClassSchema($classNameOrObject): ClassSchema
    {
        $className = is_object($classNameOrObject) ? get_class($classNameOrObject) : $classNameOrObject;
        if (isset($this->classSchemata[$className])) {
            return $this->classSchemata[$className];
        }
 
        return $this->‪buildClassSchema($className);
    }
 
    protected function ‪buildClassSchema($className): ClassSchema
    {
        try {
            $classSchema = new ClassSchema($className);
        } catch (\ReflectionException $e) {
            throw new UnknownClassException($e->getMessage() . '. Reflection failed.', 1278450972, $e);
        }
        $this->classSchemata[$className] = $classSchema;
        $this->dataCacheNeedsUpdate = true;
        return $classSchema;
    }
 
    public function ‪__sleep(): array
    {
        return [];
    }
 
    public function ‪__wakeup(): void
    {
        $this->dataCache = null;
        $this->dataCacheNeedsUpdate = false;
        $this->classSchemata = [];
        $this->cachingEnabled = false;
    }
}