src/AppBundle/Controller/ImporterController.php

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<?php

namespace AppBundle\Controller;

use Biz\Importer\Importer;
use Symfony\Component\HttpFoundation\Request;

class ImporterController extends BaseController
{
    public function checkAction(Request $request, $type)
    {
        $importer = $this->getImporterFactory($type);
        $importer->tryImport($request);
        $checkResult = $importer->check($request);
        if (!empty($checkResult['message'])) {
            $checkResult['message'] = $this->trans($checkResult['message']);
        }

        return $this->createJsonResponse($checkResult);
    }

    public function importAction(Request $request, $type)
    {
        $importer = $this->getImporterFactory($type);
        $importer->tryImport($request);
        $importerResult = $importer->import($request);

        return $this->createJsonResponse($importerResult);
    }

    public function templateAction(Request $request, $type)
    {
        $importer = $this->getImporterFactory($type);
        $importer->tryImport($request);
        $template = $importer->getTemplate($request);

        return $template;
    }

    /**
     * @param $importType
     *
     * @return Importer
     */
    protected function getImporterFactory($importType)
    {
        $biz = $this->getBiz();
        if (!isset($biz["importer.{$importType}"])) {
            return null;
        }

        return $biz["importer.{$importType}"];
    }
}