public function executeCollectionAction($action, Request $request)
    {
        $ids = $request->query->get('ids');

        /** @var ResourceNode[] $resourceNodes */
        $resourceNodes = $this->om->findList(ResourceNode::class, 'uuid', $ids);
        $responses = [];

        // read request and get user query
        $parameters = $request->query->all();
        $content = null;

        if (!empty($request->getContent())) {
            $content = json_decode($request->getContent(), true);
        }
        $files = $request->files->all();

        $this->om->startFlushSuite();

        foreach ($resourceNodes as $resourceNode) {
            // check the requested action exists
            if (!$this->actionManager->support($resourceNode, $action, $request->getMethod())) {
                // undefined action
                throw new NotFoundHttpException(
                    sprintf('The action %s with method [%s] does not exist for resource type %s.', $action, $request->getMethod(), $resourceNode->getResourceType()->getName())
                );
            }

            // check current user rights
            $this->checkAccess($this->actionManager->get($resourceNode, $action), [$resourceNode]);

            // dispatch action event
            $responses[] = $this->actionManager->execute($resourceNode, $action, $parameters, $content, $files);
        }

        $this->om->endFlushSuite();

        return new JsonResponse(array_map(function (Response $response) {
            return json_decode($response->getContent(), true);
        }, $responses));
    }