void NamingClient::RequestForServiceLocation()

in nodemanager/core/NamingClient.cpp [66:113]

• 44 lines of code
• 8 McCabe index (conditional complexity)

void NamingClient::RequestForServiceLocation(const std::string& serviceName, std::string& serviceLocation, pplx::cancellation_token token)
{
    int selected = rand() % this->namingServicesUri.size();
    std::string uri;
    int interval = this->intervalSeconds;

    while (!token.is_canceled())
    {
        try
        {
            selected %= this->namingServicesUri.size();
            uri = this->namingServicesUri[selected++] + serviceName;
            Logger::Info("ResolveServiceLocation> Fetching from {0}", uri);
            auto client = HttpHelper::GetHttpClient(uri);

            auto request = HttpHelper::GetHttpRequest(methods::GET);
            http_response response = client->request(*request, token).get();
            if (response.status_code() == http::status_codes::OK)
            {
                serviceLocation = JsonHelper<std::string>::FromJson(response.extract_json().get());
                Logger::Debug("ResolveServiceLocation> Fetched from {0} response code {1}, location {2}", uri, response.status_code(), serviceLocation);
                return;
            }
            else
            {
                Logger::Debug("ResolveServiceLocation> Fetched from {0} response code {1}", uri, response.status_code());
            }
        }
        catch (const http_exception& httpEx)
        {
            Logger::Warn("ResolveServiceLocation> HttpException occurred when fetching from {0}, ex {1}", uri, httpEx.what());
        }
        catch (const std::exception& ex)
        {
            Logger::Error("ResolveServiceLocation> Exception occurred when fetching from {0}, ex {1}", uri, ex.what());
        }
        catch (...)
        {
            Logger::Error("ResolveServiceLocation> Unknown error occurred when fetching from {0}", uri);
        }

        if (token.is_canceled()) break;

        sleep(interval);
        interval *= 2;
        if (interval > 60) interval = 60;
    }
}