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127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "opentelemetry/common/key_value_iterable.h"
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#include "opentelemetry/common/key_value_iterable_view.h"
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#include "opentelemetry/nostd/shared_ptr.h"
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#include "opentelemetry/nostd/string_view.h"
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#include "opentelemetry/version.h"
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OPENTELEMETRY_BEGIN_NAMESPACE
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namespace trace
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{
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class Tracer;
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/**
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* Creates new Tracer instances.
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*/
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class OPENTELEMETRY_EXPORT TracerProvider
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{
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public:
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virtual ~TracerProvider() = default;
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#if OPENTELEMETRY_ABI_VERSION_NO >= 2
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/**
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* Gets or creates a named Tracer instance (ABI).
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*
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* @since ABI_VERSION 2
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*
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* @param[in] name Tracer instrumentation scope
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* @param[in] version Instrumentation scope version
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* @param[in] schema_url Instrumentation scope schema URL
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* @param[in] attributes Instrumentation scope attributes (optional, may be nullptr)
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*/
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virtual nostd::shared_ptr<Tracer> GetTracer(
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nostd::string_view name,
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nostd::string_view version,
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nostd::string_view schema_url,
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const common::KeyValueIterable *attributes) noexcept = 0;
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/**
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* Gets or creates a named Tracer instance (API helper).
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*
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* @since ABI_VERSION 2
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*
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* @param[in] name Tracer instrumentation scope
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* @param[in] version Instrumentation scope version, optional
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* @param[in] schema_url Instrumentation scope schema URL, optional
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*/
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nostd::shared_ptr<Tracer> GetTracer(nostd::string_view name,
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nostd::string_view version = "",
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nostd::string_view schema_url = "")
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{
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return GetTracer(name, version, schema_url, nullptr);
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}
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/**
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* Gets or creates a named Tracer instance (API helper).
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*
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* @since ABI_VERSION 2
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*
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* @param[in] name Tracer instrumentation scope
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* @param[in] version Instrumentation scope version
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* @param[in] schema_url Instrumentation scope schema URL
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* @param[in] attributes Instrumentation scope attributes
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*/
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nostd::shared_ptr<Tracer> GetTracer(
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nostd::string_view name,
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nostd::string_view version,
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nostd::string_view schema_url,
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std::initializer_list<std::pair<nostd::string_view, common::AttributeValue>> attributes)
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{
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/* Build a container from std::initializer_list. */
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nostd::span<const std::pair<nostd::string_view, common::AttributeValue>> attributes_span{
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attributes.begin(), attributes.end()};
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/* Build a view on the container. */
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common::KeyValueIterableView<
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nostd::span<const std::pair<nostd::string_view, common::AttributeValue>>>
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iterable_attributes{attributes_span};
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/* Add attributes using the view. */
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return GetTracer(name, version, schema_url, &iterable_attributes);
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}
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/**
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* Gets or creates a named Tracer instance (API helper).
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*
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* @since ABI_VERSION 2
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*
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* @param[in] name Tracer instrumentation scope
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* @param[in] version Instrumentation scope version
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* @param[in] schema_url Instrumentation scope schema URL
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* @param[in] attributes Instrumentation scope attributes container
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*/
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template <class T,
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nostd::enable_if_t<common::detail::is_key_value_iterable<T>::value> * = nullptr>
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nostd::shared_ptr<Tracer> GetTracer(nostd::string_view name,
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nostd::string_view version,
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nostd::string_view schema_url,
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const T &attributes)
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{
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/* Build a view on the container. */
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common::KeyValueIterableView<T> iterable_attributes(attributes);
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/* Add attributes using the view. */
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return GetTracer(name, version, schema_url, &iterable_attributes);
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}
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#else
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/**
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* Gets or creates a named tracer instance.
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*
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* Optionally a version can be passed to create a named and versioned tracer
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* instance.
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*/
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virtual nostd::shared_ptr<Tracer> GetTracer(nostd::string_view name,
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nostd::string_view version = "",
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nostd::string_view schema_url = "") noexcept = 0;
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#endif
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};
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} // namespace trace
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OPENTELEMETRY_END_NAMESPACE
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