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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <iostream>
#include <memory>
#include <string>
#include <type_traits>
#include <utility>
#include <vector>
#include "opentelemetry/exporters/memory/in_memory_span_data.h"
#include "opentelemetry/exporters/memory/in_memory_span_exporter_factory.h"
#include "opentelemetry/exporters/ostream/span_exporter_factory.h"
#include "opentelemetry/nostd/span.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/sdk/trace/exporter.h"
#include "opentelemetry/sdk/trace/processor.h"
#include "opentelemetry/sdk/trace/provider.h"
#include "opentelemetry/sdk/trace/simple_processor_factory.h"
#include "opentelemetry/sdk/trace/span_data.h"
#include "opentelemetry/sdk/trace/tracer_provider.h"
#include "opentelemetry/sdk/trace/tracer_provider_factory.h"
#include "opentelemetry/trace/span_id.h"
#include "opentelemetry/trace/span_metadata.h"
#include "opentelemetry/trace/trace_id.h"
#include "opentelemetry/trace/tracer_provider.h"
#ifdef BAZEL_BUILD
# include "examples/common/foo_library/foo_library.h"
#else
# include "foo_library/foo_library.h"
#endif
using opentelemetry::exporter::memory::InMemorySpanData;
namespace trace_api = opentelemetry::trace;
namespace trace_sdk = opentelemetry::sdk::trace;
namespace
{
std::shared_ptr<InMemorySpanData> InitTracer()
{
std::shared_ptr<InMemorySpanData> data;
auto exporter1 = opentelemetry::exporter::trace::OStreamSpanExporterFactory::Create();
auto processor1 = trace_sdk::SimpleSpanProcessorFactory::Create(std::move(exporter1));
auto exporter2 = opentelemetry::exporter::memory::InMemorySpanExporterFactory::Create(data);
auto processor2 = trace_sdk::SimpleSpanProcessorFactory::Create(std::move(exporter2));
std::vector<std::unique_ptr<opentelemetry::sdk::trace::SpanProcessor>> processors;
processors.push_back(std::move(processor1));
processors.push_back(std::move(processor2));
std::shared_ptr<opentelemetry::trace::TracerProvider> provider =
trace_sdk::TracerProviderFactory::Create(std::move(processors));
// Set the global trace provider
trace_sdk::Provider::SetTracerProvider(provider);
return data;
}
void CleanupTracer()
{
std::shared_ptr<opentelemetry::trace::TracerProvider> none;
trace_sdk::Provider::SetTracerProvider(none);
}
void dumpSpans(std::vector<std::unique_ptr<trace_sdk::SpanData>> &spans)
{
char span_buf[trace_api::SpanId::kSize * 2];
char trace_buf[trace_api::TraceId::kSize * 2];
char parent_span_buf[trace_api::SpanId::kSize * 2];
std::cout << "\nSpans from memory :" << '\n';
for (auto &span : spans)
{
std::cout << "\n\tSpan: " << '\n';
std::cout << "\t\tName: " << span->GetName() << '\n';
span->GetSpanId().ToLowerBase16(span_buf);
span->GetTraceId().ToLowerBase16(trace_buf);
span->GetParentSpanId().ToLowerBase16(parent_span_buf);
std::cout << "\t\tTraceId: " << std::string(trace_buf, sizeof(trace_buf)) << '\n';
std::cout << "\t\tSpanId: " << std::string(span_buf, sizeof(span_buf)) << '\n';
std::cout << "\t\tParentSpanId: " << std::string(parent_span_buf, sizeof(parent_span_buf))
<< '\n';
std::cout << "\t\tDescription: " << span->GetDescription() << '\n';
std::cout << "\t\tSpan kind:"
<< static_cast<typename std::underlying_type<trace_api::SpanKind>::type>(
span->GetSpanKind())
<< '\n';
std::cout << "\t\tSpan Status: "
<< static_cast<typename std::underlying_type<trace_api::StatusCode>::type>(
span->GetStatus())
<< '\n';
}
}
} // namespace
int main(int /* argc */, char ** /* argv */)
{
// Removing this line will leave the default noop TracerProvider in place.
std::shared_ptr<InMemorySpanData> data = InitTracer();
foo_library();
auto memory_spans = data->GetSpans();
dumpSpans(memory_spans);
CleanupTracer();
return 0;
}
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