Add PhpArrayAdapter to cache metadata

CacheWarmer/DoctrineMetadataCacheWarmer.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Doctrine\Bundle\DoctrineBundle\CacheWarmer;
+
+use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\Mapping\ClassMetadataFactory;
+use Symfony\Bundle\FrameworkBundle\CacheWarmer\AbstractPhpFileCacheWarmer;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\DoctrineProvider;
+
+class DoctrineMetadataCacheWarmer extends AbstractPhpFileCacheWarmer
+{
+    /**
+     * @var EntityManagerInterface
+     */
+    private $entityManager;
+
+    public function __construct(EntityManagerInterface $entityManager, string $phpArrayFile)
+    {
+        $this->entityManager = $entityManager;
+
+        parent::__construct($phpArrayFile);
+    }
+
+    /**
+     * @param string $cacheDir
+     *
+     * @return bool false if there is nothing to warm-up
+     */
+    protected function doWarmUp($cacheDir, ArrayAdapter $arrayAdapter)
+    {
+        $metadataFactory = new ClassMetadataFactory();
+        $metadataFactory->setEntityManager($this->entityManager);
+        $metadataFactory->setCacheDriver(new DoctrineProvider($arrayAdapter));
+        $metadataFactory->getAllMetadata();
+
+        return true;
+    }
+}

DependencyInjection/DoctrineExtension.php

@@ -2,6 +2,7 @@
 
 namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection;
 
+use Doctrine\Bundle\DoctrineBundle\CacheWarmer\DoctrineMetadataCacheWarmer;
 use Doctrine\Bundle\DoctrineBundle\Dbal\RegexSchemaAssetFilter;
 use Doctrine\Bundle\DoctrineBundle\DependencyInjection\Compiler\ServiceRepositoryCompilerPass;
 use Doctrine\Bundle\DoctrineBundle\EventSubscriber\EventSubscriberInterface;
@@ -17,6 +18,8 @@
 use Symfony\Bridge\Doctrine\SchemaListener\PdoCacheAdapterDoctrineSchemaSubscriber;
 use Symfony\Bridge\Doctrine\Validator\DoctrineLoader;
 use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\Cache\Adapter\DoctrineAdapter;
+use Symfony\Component\Cache\Adapter\PhpArrayAdapter;
 use Symfony\Component\Cache\DoctrineProvider;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\DependencyInjection\Alias;
@@ -778,6 +781,11 @@ protected function loadOrmCacheDrivers(array $entityManager, ContainerBuilder $c
         $this->loadCacheDriver('metadata_cache', $entityManager['name'], $entityManager['metadata_cache_driver'], $container);
         $this->loadCacheDriver('result_cache', $entityManager['name'], $entityManager['result_cache_driver'], $container);
         $this->loadCacheDriver('query_cache', $entityManager['name'], $entityManager['query_cache_driver'], $container);
+
+        if (!$container->getParameter('kernel.debug')) {
+            $this->registerMetadataPhpArrayCacheWarmer($entityManager['name'], $container);
+            $this->registerMetadataPhpArrayCache($entityManager['name'], $container);
+        }
     }
 
     /**
@@ -898,4 +906,33 @@ private function createArrayAdapterCachePool(ContainerBuilder $container, string
 
         return $id;
     }
+
+    private function registerMetadataPhpArrayCacheWarmer(string $entityManagerName, ContainerBuilder $container): void
+    {
+        $cacheWarmerDefinition = $container->register(sprintf('doctrine.orm.%s_metadata_cache.php_array_warmer', $entityManagerName), DoctrineMetadataCacheWarmer::class);
+        $cacheWarmerDefinition->setArguments([
+            new Reference(sprintf('doctrine.orm.%s_entity_manager', $entityManagerName)),
+            $this->getPhpArrayFile($entityManagerName)
+        ]);
+        $cacheWarmerDefinition->addTag('kernel.cache_warmer');
+    }
+
+    private function registerMetadataPhpArrayCache(string $entityManagerName, ContainerBuilder $container): void
+    {
+        $aliasId = sprintf('doctrine.orm.%s_metadata_cache', $entityManagerName);
+        $serviceId = (string) $container->getAlias($aliasId);
+        $phpArrayAdapterDefinition = new Definition(PhpArrayAdapter::class, [
+            $this->getPhpArrayFile($entityManagerName),
+            new Definition(DoctrineAdapter::class, [new Reference($serviceId)]),
+        ]);
+        $serviceId = $aliasId.'.php_array';
+        $doctrineCacheDefinition = $container->register($serviceId, DoctrineProvider::class);
+        $doctrineCacheDefinition->addArgument($phpArrayAdapterDefinition);
+        $container->setAlias($aliasId, $serviceId);
+    }
+
+    private function getPhpArrayFile(string $entityManagerName): string
+    {
+        return '%kernel.cache_dir%'.sprintf('/doctrine/orm/%s_metadata.php', $entityManagerName);
+    }
 }