/// <summary>
/// Adds <c>ETW</c> in-process telemetry session services to the service collection.
/// </summary>
/// <param name="services">A <see cref="IServiceCollection"/> instance.</param>
/// <param name="configuration">A <see cref="IConfiguration"/> instance.</param>
/// <returns>The provided <see cref="IServiceCollection"/> instance.</returns>
public static IServiceCollection AddInProcessTelemetrySession(
this IServiceCollection services,
IConfiguration configuration)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
SessionConfiguration sessionConfiguration = configuration
.GetSection("Tracing")
.Get <SessionConfiguration>();
return(services
.AddTracingCore(configuration)
.AddSingleton(sessionConfiguration)
.AddSingleton <IProvidersDescriptor, SessionConfigurationProvidersDescriptor>()
.AddSingleton(p =>
{
IEnumerable <ITelemetryEventTransmitter> eventTransmitters =
p.GetServices <ITelemetryEventTransmitter>();
ITelemetrySession session = InProcessTelemetrySession
.Create(sessionConfiguration, p.GetServices <IProvidersDescriptor>());
foreach (ITelemetryEventTransmitter transmitter in eventTransmitters)
{
session.Attach(transmitter);
}
return session;
}));
}