RestService::validateActivityDocumentType

static function validateActivityDocumentType($documentType)
{
	try
	{
		$runtime = CBPRuntime::getRuntime();
		$runtime->startRuntime();
		/** @var CBPDocumentService $documentService */
		$documentService = $runtime->getService('DocumentService');
		$documentService->getDocumentFieldTypes($documentType);
	}
	catch (CBPArgumentNullException $e)
	{
		throw new RestException('Wrong activity DOCUMENT_TYPE!', self::ERROR_ACTIVITY_VALIDATION_FAILURE);
	}
}