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/*
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "test/testsupport/perf_test_graphjson_writer.h"
#include <fstream>
#include <map>
#include <sstream>
#include <string>
#include <vector>
#include "rtc_base/checks.h"
#include "rtc_base/critical_section.h"
namespace webrtc {
namespace test {
std::string UnitWithDirection(
const std::string& units,
webrtc::test::ImproveDirection improve_direction) {
switch (improve_direction) {
case webrtc::test::ImproveDirection::kNone:
return units;
case webrtc::test::ImproveDirection::kSmallerIsBetter:
return units + "_smallerIsBetter";
case webrtc::test::ImproveDirection::kBiggerIsBetter:
return units + "_biggerIsBetter";
}
}
template <typename Container>
void OutputListToStream(std::ostream* ostream, const Container& values) {
const char* sep = "";
for (const auto& v : values) {
(*ostream) << sep << v;
sep = ",";
}
}
namespace {
class PerfTestGraphJsonWriter : public PerfTestResultWriter {
public:
PerfTestGraphJsonWriter() : crit_(), graphs_() {}
void ClearResults() {
rtc::CritScope lock(&crit_);
graphs_.clear();
}
void LogResult(const std::string& graph_name,
const std::string& trace_name,
const double value,
const std::string& units,
const bool important,
webrtc::test::ImproveDirection improve_direction) {
std::ostringstream json_stream;
json_stream << '"' << trace_name << R"(":{)";
json_stream << R"("type":"scalar",)";
json_stream << R"("value":)" << value << ',';
json_stream << R"("units":")" << UnitWithDirection(units, improve_direction)
<< R"("})";
rtc::CritScope lock(&crit_);
graphs_[graph_name].push_back(json_stream.str());
}
void LogResultMeanAndError(const std::string& graph_name,
const std::string& trace_name,
const double mean,
const double error,
const std::string& units,
const bool important,
webrtc::test::ImproveDirection improve_direction) {
std::ostringstream json_stream;
json_stream << '"' << trace_name << R"(":{)";
json_stream << R"("type":"list_of_scalar_values",)";
json_stream << R"("values":[)" << mean << "],";
json_stream << R"("std":)" << error << ',';
json_stream << R"("units":")" << UnitWithDirection(units, improve_direction)
<< R"("})";
rtc::CritScope lock(&crit_);
graphs_[graph_name].push_back(json_stream.str());
}
void LogResultList(const std::string& graph_name,
const std::string& trace_name,
const rtc::ArrayView<const double> values,
const std::string& units,
const bool important,
webrtc::test::ImproveDirection improve_direction) {
std::ostringstream value_stream;
value_stream.precision(8);
value_stream << '[';
OutputListToStream(&value_stream, values);
value_stream << ']';
std::ostringstream json_stream;
json_stream << '"' << trace_name << R"(":{)";
json_stream << R"("type":"list_of_scalar_values",)";
json_stream << R"("values":)" << value_stream.str() << ',';
json_stream << R"("units":")" << UnitWithDirection(units, improve_direction)
<< R"("})";
rtc::CritScope lock(&crit_);
graphs_[graph_name].push_back(json_stream.str());
}
std::string Serialize() const {
std::ostringstream json_stream;
json_stream << R"({"format_version":"1.0",)";
json_stream << R"("charts":{)";
rtc::CritScope lock(&crit_);
for (auto graphs_it = graphs_.begin(); graphs_it != graphs_.end();
++graphs_it) {
if (graphs_it != graphs_.begin())
json_stream << ',';
json_stream << '"' << graphs_it->first << "\":";
json_stream << '{';
OutputListToStream(&json_stream, graphs_it->second);
json_stream << '}';
}
json_stream << "}}";
return json_stream.str();
}
private:
rtc::CriticalSection crit_;
std::map<std::string, std::vector<std::string>> graphs_
RTC_GUARDED_BY(&crit_);
};
} // namespace
PerfTestResultWriter* CreateGraphJsonWriter() {
return new PerfTestGraphJsonWriter();
}
} // namespace test
} // namespace webrtc
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