span_builder.hpp

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#pragma once
 
/// @file userver/tracing/span_builder.hpp
/// @brief @copybrief tracing::SpanBuilder
 
#include <string>
#include <string_view>
 
#include <userver/tracing/span.hpp>
#include <userver/utils/impl/source_location.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace tracing {
 
/// @brief Provides interface for editing Span, before final building.
class SpanBuilder final {
public:
    explicit SpanBuilder(
        std::string name,
        const utils::impl::SourceLocation& location = utils::impl::SourceLocation::Current()
    );
 
    void SetTraceId(std::string_view trace_id);
    std::string_view GetTraceId() const noexcept;
    void SetSpanId(std::string_view span_id);
    void SetLink(std::string_view link);
    void SetParentSpanId(std::string_view parent_span_id);
    void SetParentLink(std::string_view parent_link);
 
    void AddTagFrozen(std::string key, logging::LogExtra::Value value);
    void AddNonInheritableTag(std::string key, logging::LogExtra::Value value);
 
    Span Build() &&;
    Span BuildDetachedFromCoroStack() &&;
 
private:
    std::unique_ptr<Span::Impl, Span::OptionalDeleter> pimpl_;
};
 
}  // namespace tracing
 
USERVER_NAMESPACE_END