Can´t load Ressources with PhpFileLoader with Bundle Syntax inside Routing.php - php

Question

I try to load all the routes from all Bundles in a specific namespace dynamically. So I set up a CustomRoute Loader as a service and determine there which route to add. But the PhpFileLoader can´t find the Bundle. I get the name of thee Bundles with $this->container->getParameter('kernel.bundles'); so there can´t be a typo. Loading these Bundles hardcoded from within the routing.php works fine but not from the service class. Inside of the routing.php I can´t determine with Bundles are loaded, so using only the routing.php is not a solution. What do I miss? This is my code so far:
Routing.php
<?php
// app/config/routing.php
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;
$path = "/Controller/";
$defaultAnnotationRoutes = [
'SomeDefaultBundle'];
$routes = new RouteCollection();
$routes->add('somedefaulRoute', new Route('/', array(
'_controller' => 'SomeDefaultBundle:Welcome:page',
)));
$routes->addCollection(
$loader->import("#FOSJsRoutingBundle/Resources/config/routing/routing.xml"
));
foreach ($defaultAnnotationRoutes as $bundleName) {
$routingConfigPath = "#" . $bundleName . $path;
$routes->addCollection(
// loads routes from the given routing file stored in some bundle
$loader->import($routingConfigPath, "annotation"));
}
$routes->addCollection(
$loader->import('mapbender.routing_loader:load', "service"));
return $routes;
ServiceClass:
namespace Mapbender\CoreBundle\Routing;
use Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException;
use Symfony\Component\Config\Exception\FileLoaderLoadException;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\Routing\Loader\PhpFileLoader;
use Symfony\Component\Routing\RouteCollection;
class BundleLoader
{
protected $container;
protected $path = "/Controller/";
protected $loader;
/**
* BundleLoader constructor.
*
* #param $container
*/
public function __construct($container)
{
$this->container = $container;
$rootdir = $this->container->get('kernel')->getRootDir();
$this->loader = new PhpFileLoader(new FileLocator());
}
/**
* #param $resource
* #param null $type
* #return RouteCollection
*/
public function load($resource, $type = null)
{
$routes = new RouteCollection();
$bundles = $this->container->getParameter('kernel.bundles');
foreach ($bundles as $bundleName => $bundlePath) {
if (preg_match('/CompanyVendor/', $bundleName, $matches)) {
$routingConfigPath = "#" . $bundleName. $this->path;
try {
$routes->addCollection(
$this->loader->import($routingConfigPath)
);
} catch (FileLoaderImportCircularReferenceException $e) {
throw $e;
} catch (FileLoaderLoadException $e) {
throw $e;
}
}
}
return $routes;
}
}