/// <summary>
/// Initializes a new instance of the <see cref="DependenciesCollector"/> class.
/// </summary>
/// <param name="options">Configuration options for dependencies collector.</param>
/// <param name="tracer">Tracer to record traced with.</param>
/// <param name="sampler">Sampler to use to sample dependnecy calls.</param>
public DependenciesCollector(DependenciesCollectorOptions options, ITracer tracer, ISampler sampler)
{
this.diagnosticSourceSubscriber = new DiagnosticSourceSubscriber(
new Dictionary <string, Func <ITracer, Func <HttpRequestMessage, ISampler>, ListenerHandler> >()
{
{ "HttpHandlerDiagnosticListener", (t, s) => new HttpHandlerDiagnosticListener(t, s) }
},
tracer,
x =>
{
ISampler s = null;
try
{
s = options.CustomSampler(x);
}
catch (Exception e)
{
s = null;
DependenciesCollectorEventSource.Log.ExceptionInCustomSampler(e);
}
return(s ?? sampler);
});
this.diagnosticSourceSubscriber.Subscribe();
}
/// <summary>
/// Initializes a new instance of the <see cref="DependenciesCollector"/> class.
/// </summary>
/// <param name="options">Configuration options for dependencies collector.</param>
/// <param name="tracerFactory">TracerFactory to create a Tracer to record traced with.</param>
/// <param name="sampler">Sampler to use to sample dependency calls.</param>
public DependenciesCollector(DependenciesCollectorOptions options, ITracerFactory tracerFactory, ISampler sampler)
{
this.diagnosticSourceSubscriber = new DiagnosticSourceSubscriber <HttpRequestMessage>(
new Dictionary <string, Func <ITracerFactory, Func <HttpRequestMessage, ISampler>, ListenerHandler <HttpRequestMessage> > >()
{
{
"HttpHandlerDiagnosticListener", (tf, s) =>
{
var tracer = tracerFactory.GetTracer("OpenTelemetry.Collector.Dependencies.HttpHandlerDiagnosticListener");
return(new HttpHandlerDiagnosticListener(tracer, s));
}
},
{
"Azure.Clients", (tf, s) =>
{
var tracer = tracerFactory.GetTracer("OpenTelemetry.Collector.Dependencies.Azure.Clients");
return(new AzureSdkDiagnosticListener("Azure.Clients", tracer, sampler));
}
},
{
"Azure.Pipeline", (tf, s) =>
{
var tracer = tracerFactory.GetTracer("OpenTelemetry.Collector.Dependencies.Azure.Pipeline");
return(new AzureSdkDiagnosticListener("Azure.Pipeline", tracer, sampler));
}
},
},
tracerFactory,
x =>
{
ISampler s = null;
try
{
s = options.CustomSampler(x);
}
catch (Exception e)
{
s = null;
CollectorEventSource.Log.ExceptionInCustomSampler(e);
}
return(s ?? sampler);
});
this.diagnosticSourceSubscriber.Subscribe();
}