private function setApplicationIfNotSet(IRequest $request)
    {
        // If the 'application' attribute is not set in the request we try to get a default one from the Pushwoosh
        // client
        if ($request->getApplication() === null) {
            // The 'application' must be set
            if (!isset($this->application)) {
                throw new PushwooshException('The  \'application\' property is not set !');
            }

            $request->setApplication($this->application);
        }
    }