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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Bundle\FrameworkBundle\CacheWarmer;
- use Symfony\Component\Cache\Adapter\ArrayAdapter;
- use Symfony\Component\Cache\Adapter\NullAdapter;
- use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
- use Symfony\Component\Config\Resource\ClassExistenceResource;
- use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
- abstract class AbstractPhpFileCacheWarmer implements CacheWarmerInterface
- {
- private $phpArrayFile;
- /**
- * @param string $phpArrayFile The PHP file where metadata are cached
- */
- public function __construct(string $phpArrayFile)
- {
- $this->phpArrayFile = $phpArrayFile;
- }
- /**
- * {@inheritdoc}
- */
- public function isOptional()
- {
- return true;
- }
- /**
- * {@inheritdoc}
- *
- * @return string[] A list of classes to preload on PHP 7.4+
- */
- public function warmUp(string $cacheDir)
- {
- $arrayAdapter = new ArrayAdapter();
- spl_autoload_register([ClassExistenceResource::class, 'throwOnRequiredClass']);
- try {
- if (!$this->doWarmUp($cacheDir, $arrayAdapter)) {
- return;
- }
- } finally {
- spl_autoload_unregister([ClassExistenceResource::class, 'throwOnRequiredClass']);
- }
- // the ArrayAdapter stores the values serialized
- // to avoid mutation of the data after it was written to the cache
- // so here we un-serialize the values first
- $values = array_map(function ($val) { return null !== $val ? unserialize($val) : null; }, $arrayAdapter->getValues());
- return $this->warmUpPhpArrayAdapter(new PhpArrayAdapter($this->phpArrayFile, new NullAdapter()), $values);
- }
- /**
- * @return string[] A list of classes to preload on PHP 7.4+
- */
- protected function warmUpPhpArrayAdapter(PhpArrayAdapter $phpArrayAdapter, array $values)
- {
- return (array) $phpArrayAdapter->warmUp($values);
- }
- /**
- * @internal
- */
- final protected function ignoreAutoloadException(string $class, \Exception $exception): void
- {
- try {
- ClassExistenceResource::throwOnRequiredClass($class, $exception);
- } catch (\ReflectionException $e) {
- }
- }
- /**
- * @return bool false if there is nothing to warm-up
- */
- abstract protected function doWarmUp(string $cacheDir, ArrayAdapter $arrayAdapter);
- }
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