public EndpointConnectivityState ToConnectivityState()

in src/Azure.IIoT.OpcUa.Publisher/src/Stack/Services/OpcUaClient.cs [1999:2057]
59 lines of code
28 McCabe index (conditional complexity)

        public EndpointConnectivityState ToConnectivityState(Exception ex, bool reconnecting = true)
        {
            EndpointConnectivityState state;
            switch (ex)
            {
                case ServiceResultException sre:
                    switch (sre.StatusCode)
                    {
                        case StatusCodes.BadNoContinuationPoints:
                        case StatusCodes.BadLicenseLimitsExceeded:
                        case StatusCodes.BadTcpServerTooBusy:
                        case StatusCodes.BadTooManySessions:
                        case StatusCodes.BadTooManyOperations:
                            state = EndpointConnectivityState.Busy;
                            break;
                        case StatusCodes.BadCertificateRevocationUnknown:
                        case StatusCodes.BadCertificateIssuerRevocationUnknown:
                        case StatusCodes.BadCertificateRevoked:
                        case StatusCodes.BadCertificateIssuerRevoked:
                        case StatusCodes.BadCertificateChainIncomplete:
                        case StatusCodes.BadCertificateIssuerUseNotAllowed:
                        case StatusCodes.BadCertificateUseNotAllowed:
                        case StatusCodes.BadCertificateUriInvalid:
                        case StatusCodes.BadCertificateTimeInvalid:
                        case StatusCodes.BadCertificateIssuerTimeInvalid:
                        case StatusCodes.BadCertificateInvalid:
                        case StatusCodes.BadCertificateHostNameInvalid:
                        case StatusCodes.BadNoValidCertificates:
                            state = EndpointConnectivityState.CertificateInvalid;
                            break;
                        case StatusCodes.BadCertificateUntrusted:
                        case StatusCodes.BadSecurityChecksFailed:
                            state = EndpointConnectivityState.NoTrust;
                            break;
                        case StatusCodes.BadSecureChannelClosed:
                            state = reconnecting ? EndpointConnectivityState.NoTrust :
                                EndpointConnectivityState.Error;
                            break;
                        case StatusCodes.BadRequestTimeout:
                        case StatusCodes.BadNotConnected:
                            state = EndpointConnectivityState.NotReachable;
                            break;
                        case StatusCodes.BadUserAccessDenied:
                        case StatusCodes.BadUserSignatureInvalid:
                            state = EndpointConnectivityState.Unauthorized;
                            break;
                        default:
                            state = EndpointConnectivityState.Error;
                            break;
                    }
                    _logger.LogDebug("{Client}: {Result} => {State}", this, sre.Result, state);
                    break;
                default:
                    state = EndpointConnectivityState.Error;
                    _logger.LogDebug("{Client}: {Message} => {State}", this, ex.Message, state);
                    break;
            }
            return state;
        }