--- /dev/null
+<?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\Component\Serializer\Mapping\Factory;
+
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * Caches metadata using a PSR-6 implementation.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class CacheClassMetadataFactory implements ClassMetadataFactoryInterface
+{
+ use ClassResolverTrait;
+
+ /**
+ * @var ClassMetadataFactoryInterface
+ */
+ private $decorated;
+
+ /**
+ * @var CacheItemPoolInterface
+ */
+ private $cacheItemPool;
+
+ public function __construct(ClassMetadataFactoryInterface $decorated, CacheItemPoolInterface $cacheItemPool)
+ {
+ $this->decorated = $decorated;
+ $this->cacheItemPool = $cacheItemPool;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getMetadataFor($value)
+ {
+ $class = $this->getClass($value);
+ // Key cannot contain backslashes according to PSR-6
+ $key = strtr($class, '\\', '_');
+
+ $item = $this->cacheItemPool->getItem($key);
+ if ($item->isHit()) {
+ return $item->get();
+ }
+
+ $metadata = $this->decorated->getMetadataFor($value);
+ $this->cacheItemPool->save($item->set($metadata));
+
+ return $metadata;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function hasMetadataFor($value)
+ {
+ return $this->decorated->hasMetadataFor($value);
+ }
+}