internal Span(
Activity activity,
Tracestate tracestate,
SpanKind spanKind,
TraceConfig traceConfig,
SpanProcessor spanProcessor,
DateTimeOffset startTimestamp,
bool ownsActivity)
{
this.Activity = activity;
this.spanContext = new Lazy <SpanContext>(() => SpanContext.Create(
this.Activity.TraceId,
this.Activity.SpanId,
this.Activity.ActivityTraceFlags,
tracestate));
this.Name = this.Activity.OperationName;
this.traceConfig = traceConfig;
this.spanProcessor = spanProcessor;
this.Kind = spanKind;
this.OwnsActivity = ownsActivity;
this.IsRecordingEvents = this.Activity.Recorded;
this.startTimestamp = startTimestamp;
if (this.IsRecordingEvents)
{
this.spanProcessor.OnStart(this);
}
}
internal static ISpan StartSpan(
Activity activity,
Tracestate tracestate,
SpanKind spanKind,
ITraceParams traceParams,
IStartEndHandler startEndHandler,
bool ownsActivity = true)
{
var span = new Span(
activity,
tracestate,
spanKind,
traceParams,
startEndHandler,
ownsActivity);
// Call onStart here instead of calling in the constructor to make sure the span is completely
// initialized.
if (span.IsRecordingEvents)
{
startEndHandler.OnStart(span);
}
return(span);
}
private Span(
Activity activity,
Tracestate tracestate,
SpanKind spanKind,
ITraceParams traceParams,
IStartEndHandler startEndHandler,
bool ownsActivity)
{
this.Activity = activity;
this.spanContext = new Lazy <SpanContext>(() => SpanContext.Create(
this.Activity.TraceId,
this.Activity.SpanId,
this.Activity.ActivityTraceFlags,
tracestate));
this.Name = this.Activity.OperationName;
this.traceParams = traceParams ?? throw new ArgumentNullException(nameof(traceParams));
this.startEndHandler = startEndHandler;
this.Kind = spanKind;
this.OwnsActivity = ownsActivity;
this.IsRecordingEvents = this.Activity.Recorded;
}
/// <summary>
/// Creates a new <see cref="SpanContext"/> with the given identifiers and options.
/// </summary>
/// <param name="traceId">The <see cref="ActivityTraceId"/> to associate with the <see cref="SpanContext"/>.</param>
/// <param name="spanId">The <see cref="ActivitySpanId"/> to associate with the <see cref="SpanContext"/>.</param>
/// <param name="traceOptions">The <see cref="TraceOptions"/> to associate with the <see cref="SpanContext"/>.</param>
/// <param name="tracestate">The <see cref="Tracestate"/> to associate with the <see cref="SpanContext"/>.</param>
/// <returns>A new <see cref="SpanContext"/> with the given identifiers and options.</returns>
public static SpanContext Create(ActivityTraceId traceId, ActivitySpanId spanId, ActivityTraceFlags traceOptions, Tracestate tracestate)
{
return(new SpanContext(traceId, spanId, traceOptions, tracestate));
}
private SpanContext(ActivityTraceId traceId, ActivitySpanId spanId, ActivityTraceFlags traceOptions, Tracestate tracestate)
{
this.TraceId = traceId;
this.SpanId = spanId;
this.TraceOptions = traceOptions;
this.Tracestate = tracestate;
}
