private static bool IsRegistered()

in src/ServiceProfiler.EventPipe.Otel/Azure.Monitor.OpenTelemetry.Profiler/OpenTelemetryBuilderExtensions.cs [61:120]
41 lines of code
5 McCabe index (conditional complexity)

    private static bool IsRegistered(IServiceCollection services) =>
        services.Any(descriptor => descriptor.ServiceType == typeof(IServiceProfilerAgentBootstrap));

    private static void ConfigureServices(IServiceCollection services, Action<ServiceProfilerOptions>? configureServiceProfiler)
    {
        services.AddLogging();
        services.AddOptions();

        services.AddOptions<ServiceProfilerOptions>().Configure<IConfiguration, IOptions<AzureMonitorExporterOptions>>((opt, configuration, azureMonitorOptions) =>
        {
            configuration.GetSection("ServiceProfiler").Bind(opt);

            AzureMonitorExporterOptions? monitorOptions = azureMonitorOptions.Value;

            // Inherit connection string from the Azure Monitor Options unless
            // the value is already there.
            string? azureMonitorConnectionString = monitorOptions.ConnectionString;
            if (string.IsNullOrWhiteSpace(opt.ConnectionString))
            {
                opt.ConnectionString = azureMonitorConnectionString;
            }

            // Inherit the credential object from the Azure Monitor Options unless
            // the value is already there.
            opt.Credential ??= monitorOptions.Credential;
            configureServiceProfiler?.Invoke(opt);

            // Last effort to capture the connection string when all above failed
            if (string.IsNullOrEmpty(opt.ConnectionString))
            {
                opt.ConnectionString = Environment.GetEnvironmentVariable("APPLICATIONINSIGHTS_CONNECTION_STRING");
            }

            // Fast fail when the connection string is not set.
            // This should never happen, or the profiler is not going to work.
            if (string.IsNullOrEmpty(opt.ConnectionString))
            {
                throw new InvalidOperationException("Connection string can't be fetched. Please follow the instructions to setup connection string properly.");
            }
        });

        services.AddSingleton<IOptions<UserConfigurationBase>>(p =>
        {
            ServiceProfilerOptions profilerOptions = GetRequiredOptions<ServiceProfilerOptions>(p);
            return Options.Create(profilerOptions);
        });

        services.AddServiceProfilerCore();

        services.AddSingleton<IServiceProfilerAgentBootstrap>(p =>
        {
            ServiceProfilerOptions userConfiguration = GetRequiredOptions<ServiceProfilerOptions>(p);
            // Choose one by configurations to register.
            return userConfiguration.IsDisabled ?
                ActivatorUtilities.CreateInstance<DisabledAgentBootstrap>(p) :
                ActivatorUtilities.CreateInstance<ServiceProfilerAgentBootstrap>(p);
        });

        services.AddHostedService<ProfilerBackgroundService>();
    }