Best way to determine connection status of Real-Time SDK Application

mplant

We have a Real-Time SDK application that has the following:

class ConsumerClient : public access::OmmConsumerClient {
public:
  ConsumerClient(…) { … }
protected:
  void onRefreshMsg(const access::RefreshMsg &msg,
                    const access::OmmConsumerEvent &event) {
    processState(msg.getState());
  }


  void onUpdateMsg(const access::UpdateMsg &msg,
                   const access::OmmConsumerEvent &event) {
    processMsg(msg);
  }


  void onStatusMsg(const access::StatusMsg &msg,
                   const access::OmmConsumerEvent &event) {
    if (msg.hasState()) {
      processState(msg.getState());
    }
  }


private:
  void processState(const access::OmmState &state) {
    switch (state.getStreamState()) {
    case access::OmmState::StreamState::OpenEnum:
      if (state.getDataState() == access::OmmState::DataState::OkEnum) {
        inc_lseg_connections(*outbound_channel);
      }
      break;
    default:
      inc_lseg_disconnections(*outbound_channel);
      break;
    }
  }

We have alerting on inc_lseg_connections and dec_lseg_connections. Occasionally, we get spurious alerting relating to inc_lseg_connections during the day, hours after the initial channel ups without having any disconnections.Really, what we want is to be able to determine if the connection is active at any given time. What is the best way to do that?

Jirapongse

@mplant

Thank you for reaching out to us.

The channel information can be retrieved from the OmmConsumer and OmmConsumerEvent instance by calling the getChannelInformation().

For example:

void AppClient::onStatusMsg( const StatusMsg& statusMsg, const OmmConsumerEvent& event ) 
{
	cout << endl << statusMsg << endl << "event channel info (status)" << endl << event.getChannelInformation();
}
…
…
OmmConsumer consumer( OmmConsumerConfig( ).username( "user" ) );
…
ChannelInformation info;
consumer.getChannelInformation(info);

You can call the getChannelState() method in the ChannelInformation instance to get the channel state as a ChannelState enum.

For more information, please refer to the 170_MP_ChannelInfo example.