tracing

type Context interface {
	IsSampled() bool
	TraceID() string
	SpanID() string
}

type Exporter = sdktrace.SpanExporter

type ExporterBuilder func() (Exporter, error)

type Option func(*options)

type Sampler = sdktrace.Sampler

type Span interface {
	// End completes the Span. The Span is considered complete and ready to be
	// delivered through the rest of the telemetry pipeline after this method
	// is called. Therefore, updates to the Span are not allowed after this
	// method has been called.
	// TODO(bwplotka): Add Set status to End options.
	End(err error)

	// Context returns span context that contains useful information about span and belonging trace.
	// This information is available even after span End.
	// NOTE: Do not confuse with Go context.Context which is important, but has to be tracked outside of Span.
	Context() Context

	// AddEvent adds an event to the span. This was previously (in OpenTracing) known as
	// structured logs attached to the span.
	AddEvent(name string, keyvals ...interface{})

	// SetAttributes sets kv as attributes of the Span. If a key from kv
	// already exists for an attribute of the Span it should be overwritten with
	// the value contained in kv.
	SetAttributes(keyvals ...interface{})
}

type Tracer struct {
	// contains filtered or unexported fields
}

type TracerStartSpanOption func(*tracerStartSpanOptions)