vendor/symfony/assetic-bundle/Controller/AsseticController.php

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<?php

/*
 * This file is part of the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Symfony\Bundle\AsseticBundle\Controller;

use Assetic\Asset\AssetCache;
use Assetic\Asset\AssetInterface;
use Assetic\Cache\CacheInterface;
use Assetic\Factory\LazyAssetManager;
use Assetic\ValueSupplierInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\Profiler\Profiler;

/**
 * Serves assets.
 *
 * @author Kris Wallsmith <kris@symfony.com>
 */
class AsseticController
{
    protected $request;
    protected $am;
    protected $cache;
    protected $enableProfiler;
    protected $profiler;

    public function __construct(LazyAssetManager $am, CacheInterface $cache, $enableProfiler = false, Profiler $profiler = null)
    {
        $this->am = $am;
        $this->cache = $cache;
        $this->enableProfiler = (boolean) $enableProfiler;
        $this->profiler = $profiler;
    }

    public function setValueSupplier(ValueSupplierInterface $supplier)
    {
        trigger_error(sprintf('%s is deprecated. The values of asset variables are retrieved from the request after the route matching.', __METHOD__), E_USER_DEPRECATED);
    }

    public function render(Request $request, $name, $pos = null)
    {
        if (!$this->enableProfiler && null !== $this->profiler) {
            $this->profiler->disable();
        }

        if (!$this->am->has($name)) {
            throw new NotFoundHttpException(sprintf('The "%s" asset could not be found.', $name));
        }

        $asset = $this->am->get($name);