ceph/src/jaegertracing/opentelemetry-cpp/api/include/opentelemetry/trace/default_span.h

   1 // Copyright The OpenTelemetry Authors
   2 // SPDX-License-Identifier: Apache-2.0
   3
   4 #pragma once
   5 #include "opentelemetry/common/attribute_value.h"
   6 #include "opentelemetry/trace/canonical_code.h"
   7 #include "opentelemetry/trace/span.h"
   8 #include "opentelemetry/trace/span_context.h"
   9
  10 OPENTELEMETRY_BEGIN_NAMESPACE
  11 namespace trace
  12 {
  13
  14 /**
  15  * DefaultSpan provides a non-operational Span that propagates
  16  * the tracer context by wrapping it inside the Span object.
  17  */
  18
  19 class DefaultSpan : public Span
  20 {
  21 public:
  22   // Returns an invalid span.
  23   static DefaultSpan GetInvalid() { return DefaultSpan(SpanContext::GetInvalid()); }
  24
  25   trace::SpanContext GetContext() const noexcept { return span_context_; }
  26
  27   bool IsRecording() const noexcept { return false; }
  28
  29   void SetAttribute(nostd::string_view /* key */,
  30                     const common::AttributeValue & /* value */) noexcept
  31   {}
  32
  33   void AddEvent(nostd::string_view /* name */) noexcept {}
  34
  35   void AddEvent(nostd::string_view /* name */, common::SystemTimestamp /* timestamp */) noexcept {}
  36
  37   void AddEvent(nostd::string_view /* name */,
  38                 common::SystemTimestamp /* timestamp */,
  39                 const common::KeyValueIterable & /* attributes */) noexcept
  40   {}
  41
  42   void AddEvent(nostd::string_view name, const common::KeyValueIterable &attributes) noexcept
  43   {
  44     this->AddEvent(name, std::chrono::system_clock::now(), attributes);
  45   }
  46
  47   void SetStatus(StatusCode /* status */, nostd::string_view /* description */) noexcept {}
  48
  49   void UpdateName(nostd::string_view /* name */) noexcept {}
  50
  51   void End(const EndSpanOptions & /* options */ = {}) noexcept {}
  52
  53   nostd::string_view ToString() const noexcept { return "DefaultSpan"; }
  54
  55   DefaultSpan(SpanContext span_context) noexcept : span_context_(span_context) {}
  56
  57   // movable and copiable
  58   DefaultSpan(DefaultSpan &&spn) noexcept : span_context_(spn.GetContext()) {}
  59   DefaultSpan(const DefaultSpan &spn) noexcept : span_context_(spn.GetContext()) {}
  60
  61 private:
  62   SpanContext span_context_;
  63 };
  64
  65 }  // namespace trace
  66 OPENTELEMETRY_END_NAMESPACE