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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <cstdio>
#include <fstream> // IWYU pragma: keep
#include <iostream>
#include <iterator>
#include <memory>
#include <string>
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/plugin/dynamic_load.h"
#include "opentelemetry/plugin/factory.h"
#include "opentelemetry/trace/tracer.h"
int main(int argc, char *argv[])
{
if (argc != 3)
{
std::cerr << "Usage: load_plugin <plugin> <config>\n";
return -1;
}
std::string error_message;
auto factory = opentelemetry::plugin::LoadFactory(argv[1], error_message);
if (factory == nullptr)
{
std::cerr << "Failed to load opentelemetry plugin: " << error_message << "\n";
return -1;
}
std::ifstream config_in{argv[2]};
if (!config_in.good())
{
std::perror("Failed to open config file");
return -1;
}
std::string config{std::istreambuf_iterator<char>{config_in}, std::istreambuf_iterator<char>{}};
auto tracer = factory->MakeTracer(config, error_message);
if (tracer == nullptr)
{
std::cerr << "Failed to make tracer: " << error_message << "\n";
return -1;
}
auto span = tracer->StartSpan("abc");
return 0;
}
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