private TelemetryConfiguration SetupTelemetryConfiguration()

in src/WebJobs.Extensions.DurableTask/Correlation/TelemetryActivator.cs [159:218]
51 lines of code
8 McCabe index (conditional complexity)

        private TelemetryConfiguration SetupTelemetryConfiguration()
        {
            TelemetryConfiguration config = TelemetryConfiguration.CreateDefault();
            if (this.OnSend != null)
            {
                config.TelemetryChannel = new NoOpTelemetryChannel { OnSend = this.OnSend };
            }

            string resolvedInstrumentationKey = this.nameResolver.Resolve("APPINSIGHTS_INSTRUMENTATIONKEY");
            string resolvedConnectionString = this.nameResolver.Resolve("APPLICATIONINSIGHTS_CONNECTION_STRING");

            bool instrumentationKeyProvided = !string.IsNullOrEmpty(resolvedInstrumentationKey);
            bool connectionStringProvided = !string.IsNullOrEmpty(resolvedConnectionString);

            if (instrumentationKeyProvided && connectionStringProvided)
            {
                this.endToEndTraceHelper.ExtensionWarningEvent(
                    hubName: this.options.HubName,
                    functionName: string.Empty,
                    instanceId: string.Empty,
                    message: "Both 'APPINSIGHTS_INSTRUMENTATIONKEY' and 'APPLICATIONINSIGHTS_CONNECTION_STRING' are defined in the current environment variables. Please specify one. We recommend specifying 'APPLICATIONINSIGHTS_CONNECTION_STRING'.");
            }

            if (!instrumentationKeyProvided && !connectionStringProvided)
            {
                this.endToEndTraceHelper.ExtensionWarningEvent(
                    hubName: this.options.HubName,
                    functionName: string.Empty,
                    instanceId: string.Empty,
                    message: "'APPINSIGHTS_INSTRUMENTATIONKEY' or 'APPLICATIONINSIGHTS_CONNECTION_STRING' were not defined in the current environment variables, but distributed tracing is enabled. Please specify one. We recommend specifying 'APPLICATIONINSIGHTS_CONNECTION_STRING'.");
            }

            if (instrumentationKeyProvided)
            {
                this.endToEndTraceHelper.ExtensionInformationalEvent(
                    hubName: this.options.HubName,
                    functionName: string.Empty,
                    instanceId: string.Empty,
                    message: "Reading APPINSIGHTS_INSTRUMENTATIONKEY...",
                    writeToUserLogs: true);

#pragma warning disable CS0618 // Type or member is obsolete
                config.InstrumentationKey = resolvedInstrumentationKey;
#pragma warning restore CS0618 // Type or member is obsolete
            }

            if (connectionStringProvided)
            {
                this.endToEndTraceHelper.ExtensionInformationalEvent(
                    hubName: this.options.HubName,
                    functionName: string.Empty,
                    instanceId: string.Empty,
                    message: "Reading APPLICATIONINSIGHTS_CONNECTION_STRING...",
                    writeToUserLogs: true);

                config.ConnectionString = resolvedConnectionString;
            }

            return config;
        }