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/*
* Copyright (c) 2022 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 "api/test/metrics/metrics_set_proto_file_exporter.h"
#include <stdio.h>
#include <string>
#include "api/test/metrics/metric.h"
#include "rtc_base/logging.h"
#include "test/testsupport/file_utils.h"
#if WEBRTC_ENABLE_PROTOBUF
#include "api/test/metrics/proto/metric.pb.h"
#endif
namespace webrtc {
namespace test {
namespace {
#if WEBRTC_ENABLE_PROTOBUF
webrtc::test_metrics::Unit ToProtoUnit(Unit unit) {
switch (unit) {
case Unit::kMilliseconds:
return webrtc::test_metrics::Unit::MILLISECONDS;
case Unit::kPercent:
return webrtc::test_metrics::Unit::PERCENT;
case Unit::kBytes:
return webrtc::test_metrics::Unit::BYTES;
case Unit::kKilobitsPerSecond:
return webrtc::test_metrics::Unit::KILOBITS_PER_SECOND;
case Unit::kHertz:
return webrtc::test_metrics::Unit::HERTZ;
case Unit::kUnitless:
return webrtc::test_metrics::Unit::UNITLESS;
case Unit::kCount:
return webrtc::test_metrics::Unit::COUNT;
}
}
webrtc::test_metrics::ImprovementDirection ToProtoImprovementDirection(
ImprovementDirection direction) {
switch (direction) {
case ImprovementDirection::kBiggerIsBetter:
return webrtc::test_metrics::ImprovementDirection::BIGGER_IS_BETTER;
case ImprovementDirection::kNeitherIsBetter:
return webrtc::test_metrics::ImprovementDirection::NEITHER_IS_BETTER;
case ImprovementDirection::kSmallerIsBetter:
return webrtc::test_metrics::ImprovementDirection::SMALLER_IS_BETTER;
}
}
void SetTimeSeries(
const Metric::TimeSeries& time_series,
webrtc::test_metrics::Metric::TimeSeries* proto_time_series) {
for (const Metric::TimeSeries::Sample& sample : time_series.samples) {
webrtc::test_metrics::Metric::TimeSeries::Sample* proto_sample =
proto_time_series->add_samples();
proto_sample->set_value(sample.value);
proto_sample->set_timestamp_us(sample.timestamp.us());
for (const auto& [key, value] : sample.sample_metadata) {
proto_sample->mutable_sample_metadata()->insert({key, value});
}
}
}
void SetStats(const Metric::Stats& stats,
webrtc::test_metrics::Metric::Stats* proto_stats) {
if (stats.mean.has_value()) {
proto_stats->set_mean(*stats.mean);
}
if (stats.stddev.has_value()) {
proto_stats->set_stddev(*stats.stddev);
}
if (stats.min.has_value()) {
proto_stats->set_min(*stats.min);
}
if (stats.max.has_value()) {
proto_stats->set_max(*stats.max);
}
}
bool WriteMetricsToFile(const std::string& path,
const webrtc::test_metrics::MetricsSet& metrics_set) {
std::string data;
bool ok = metrics_set.SerializeToString(&data);
if (!ok) {
RTC_LOG(LS_ERROR) << "Failed to serialize histogram set to string";
return false;
}
CreateDir(DirName(path));
FILE* output = fopen(path.c_str(), "wb");
if (output == NULL) {
RTC_LOG(LS_ERROR) << "Failed to write to " << path;
return false;
}
size_t written = fwrite(data.c_str(), sizeof(char), data.size(), output);
fclose(output);
if (written != data.size()) {
size_t expected = data.size();
RTC_LOG(LS_ERROR) << "Wrote " << written << ", tried to write " << expected;
return false;
}
return true;
}
#endif // WEBRTC_ENABLE_PROTOBUF
} // namespace
MetricsSetProtoFileExporter::Options::Options(
absl::string_view export_file_path)
: export_file_path(export_file_path) {}
MetricsSetProtoFileExporter::Options::Options(
absl::string_view export_file_path,
bool export_whole_time_series)
: export_file_path(export_file_path),
export_whole_time_series(export_whole_time_series) {}
bool MetricsSetProtoFileExporter::Export(rtc::ArrayView<const Metric> metrics) {
#if WEBRTC_ENABLE_PROTOBUF
webrtc::test_metrics::MetricsSet metrics_set;
for (const Metric& metric : metrics) {
webrtc::test_metrics::Metric* metric_proto = metrics_set.add_metrics();
metric_proto->set_name(metric.name);
metric_proto->set_unit(ToProtoUnit(metric.unit));
metric_proto->set_improvement_direction(
ToProtoImprovementDirection(metric.improvement_direction));
metric_proto->set_test_case(metric.test_case);
for (const auto& [key, value] : metric.metric_metadata) {
metric_proto->mutable_metric_metadata()->insert({key, value});
}
if (options_.export_whole_time_series) {
SetTimeSeries(metric.time_series, metric_proto->mutable_time_series());
}
SetStats(metric.stats, metric_proto->mutable_stats());
}
return WriteMetricsToFile(options_.export_file_path, metrics_set);
#else
RTC_LOG(LS_ERROR)
<< "Compile with protobuf support to properly use this class";
return false;
#endif
}
} // namespace test
} // namespace webrtc
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