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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
// Make sure to include GRPC exporter first because otherwise Abseil may create
// ambiguity with `nostd::variant`. See issue:
// https://github.com/open-telemetry/opentelemetry-cpp/issues/880
#include "opentelemetry/exporters/otlp/otlp_grpc_exporter.h"
#include "opentelemetry/sdk/trace/simple_processor.h"
#include "opentelemetry/sdk/trace/tracer_provider.h"
#include "opentelemetry/trace/provider.h"
#ifdef BAZEL_BUILD
# include "examples/common/foo_library/foo_library.h"
#else
# include "foo_library/foo_library.h"
#endif
namespace trace = opentelemetry::trace;
namespace nostd = opentelemetry::nostd;
namespace trace_sdk = opentelemetry::sdk::trace;
namespace otlp = opentelemetry::exporter::otlp;
namespace
{
opentelemetry::exporter::otlp::OtlpGrpcExporterOptions opts;
void InitTracer()
{
// Create OTLP exporter instance
auto exporter = std::unique_ptr<trace_sdk::SpanExporter>(new otlp::OtlpGrpcExporter(opts));
auto processor = std::unique_ptr<trace_sdk::SpanProcessor>(
new trace_sdk::SimpleSpanProcessor(std::move(exporter)));
auto provider =
nostd::shared_ptr<trace::TracerProvider>(new trace_sdk::TracerProvider(std::move(processor)));
// Set the global trace provider
trace::Provider::SetTracerProvider(provider);
}
} // namespace
int main(int argc, char *argv[])
{
if (argc > 1)
{
opts.endpoint = argv[1];
if (argc > 2)
{
opts.use_ssl_credentials = true;
opts.ssl_credentials_cacert_path = argv[2];
}
}
// Removing this line will leave the default noop TracerProvider in place.
InitTracer();
foo_library();
}
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