initial commit

vendor/symfony/framework-bundle/CacheWarmer/RouterCacheWarmer.php

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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 Psr\Container\ContainerInterface;
+use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;
+use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
+use Symfony\Component\Routing\RouterInterface;
+use Symfony\Contracts\Service\ServiceSubscriberInterface;
+
+/**
+ * Generates the router matcher and generator classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+class RouterCacheWarmer implements CacheWarmerInterface, ServiceSubscriberInterface
+{
+    /**
+     * As this cache warmer is optional, dependencies should be lazy-loaded, that's why a container should be injected.
+     */
+    public function __construct(
+        private ContainerInterface $container,
+    ) {
+    }
+
+    public function warmUp(string $cacheDir, ?string $buildDir = null): array
+    {
+        if (!$buildDir) {
+            return [];
+        }
+
+        $router = $this->container->get('router');
+
+        if ($router instanceof WarmableInterface) {
+            return $router->warmUp($cacheDir, $buildDir);
+        }
+
+        throw new \LogicException(\sprintf('The router "%s" cannot be warmed up because it does not implement "%s".', get_debug_type($router), WarmableInterface::class));
+    }
+
+    public function isOptional(): bool
+    {
+        return true;
+    }
+
+    public static function getSubscribedServices(): array
+    {
+        return [
+            'router' => RouterInterface::class,
+        ];
+    }
+}