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#include "buffered_encoder_base.h"
#include <util/string/join.h>
#include <util/string/builder.h>
namespace NMonitoring {
void TBufferedEncoderBase::OnStreamBegin() {
State_.Expect(TEncoderState::EState::ROOT);
}
void TBufferedEncoderBase::OnStreamEnd() {
State_.Expect(TEncoderState::EState::ROOT);
}
void TBufferedEncoderBase::OnCommonTime(TInstant time) {
State_.Expect(TEncoderState::EState::ROOT);
CommonTime_ = time;
}
void TBufferedEncoderBase::OnMetricBegin(EMetricType type) {
State_.Switch(TEncoderState::EState::ROOT, TEncoderState::EState::METRIC);
Metrics_.emplace_back();
Metrics_.back().MetricType = type;
}
void TBufferedEncoderBase::OnMetricEnd() {
State_.Switch(TEncoderState::EState::METRIC, TEncoderState::EState::ROOT);
switch (MetricsMergingMode_) {
case EMetricsMergingMode::MERGE_METRICS: {
auto& metric = Metrics_.back();
Sort(metric.Labels, [] (const TPooledLabel& lhs, const TPooledLabel& rhs) {
return std::tie(lhs.Key, lhs.Value) < std::tie(rhs.Key, rhs.Value);
});
auto it = MetricMap_.find(metric.Labels);
if (it == std::end(MetricMap_)) {
MetricMap_.emplace(metric.Labels, Metrics_.size() - 1);
} else {
auto& existing = Metrics_[it->second].TimeSeries;
Y_ENSURE(existing.GetValueType() == metric.TimeSeries.GetValueType(),
"Time series point type mismatch: expected " << existing.GetValueType()
<< " but found " << metric.TimeSeries.GetValueType()
<< ", labels '" << FormatLabels(metric.Labels) << "'");
existing.CopyFrom(metric.TimeSeries);
Metrics_.pop_back();
}
break;
}
case EMetricsMergingMode::DEFAULT:
break;
}
}
void TBufferedEncoderBase::OnLabelsBegin() {
if (State_ == TEncoderState::EState::METRIC) {
State_ = TEncoderState::EState::METRIC_LABELS;
} else if (State_ == TEncoderState::EState::ROOT) {
State_ = TEncoderState::EState::COMMON_LABELS;
} else {
State_.ThrowInvalid("expected METRIC or ROOT");
}
}
void TBufferedEncoderBase::OnLabelsEnd() {
if (State_ == TEncoderState::EState::METRIC_LABELS) {
State_ = TEncoderState::EState::METRIC;
} else if (State_ == TEncoderState::EState::COMMON_LABELS) {
State_ = TEncoderState::EState::ROOT;
} else {
State_.ThrowInvalid("expected LABELS or COMMON_LABELS");
}
}
void TBufferedEncoderBase::OnLabel(TStringBuf name, TStringBuf value) {
TPooledLabels* labels;
if (State_ == TEncoderState::EState::METRIC_LABELS) {
labels = &Metrics_.back().Labels;
} else if (State_ == TEncoderState::EState::COMMON_LABELS) {
labels = &CommonLabels_;
} else {
State_.ThrowInvalid("expected LABELS or COMMON_LABELS");
}
labels->emplace_back(LabelNamesPool_.PutIfAbsent(name), LabelValuesPool_.PutIfAbsent(value));
}
void TBufferedEncoderBase::OnLabel(ui32 name, ui32 value) {
TPooledLabels* labels;
if (State_ == TEncoderState::EState::METRIC_LABELS) {
labels = &Metrics_.back().Labels;
} else if (State_ == TEncoderState::EState::COMMON_LABELS) {
labels = &CommonLabels_;
} else {
State_.ThrowInvalid("expected LABELS or COMMON_LABELS");
}
labels->emplace_back(LabelNamesPool_.GetByIndex(name), LabelValuesPool_.GetByIndex(value));
}
std::pair<ui32, ui32> TBufferedEncoderBase::PrepareLabel(TStringBuf name, TStringBuf value) {
auto nameLabel = LabelNamesPool_.PutIfAbsent(name);
auto valueLabel = LabelValuesPool_.PutIfAbsent(value);
return std::make_pair(nameLabel->Index, valueLabel->Index);
}
void TBufferedEncoderBase::OnDouble(TInstant time, double value) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, value);
}
void TBufferedEncoderBase::OnInt64(TInstant time, i64 value) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, value);
}
void TBufferedEncoderBase::OnUint64(TInstant time, ui64 value) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, value);
}
void TBufferedEncoderBase::OnHistogram(TInstant time, IHistogramSnapshotPtr s) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, s.Get());
}
void TBufferedEncoderBase::OnSummaryDouble(TInstant time, ISummaryDoubleSnapshotPtr s) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, s.Get());
}
void TBufferedEncoderBase::OnLogHistogram(TInstant time, TLogHistogramSnapshotPtr s) {
State_.Expect(TEncoderState::EState::METRIC);
TMetric& metric = Metrics_.back();
metric.TimeSeries.Add(time, s.Get());
}
TString TBufferedEncoderBase::FormatLabels(const TPooledLabels& labels) const {
auto formattedLabels = TVector<TString>(Reserve(labels.size() + CommonLabels_.size()));
auto addLabel = [&](const TPooledLabel& l) {
auto formattedLabel = TStringBuilder() << LabelNamesPool_.Get(l.Key) << '=' << LabelValuesPool_.Get(l.Value);
formattedLabels.push_back(std::move(formattedLabel));
};
for (const auto& l: labels) {
addLabel(l);
}
for (const auto& l: CommonLabels_) {
const auto it = FindIf(labels, [&](const TPooledLabel& label) {
return label.Key == l.Key;
});
if (it == labels.end()) {
addLabel(l);
}
}
Sort(formattedLabels);
return TStringBuilder() << "{" << JoinSeq(", ", formattedLabels) << "}";
}
} // namespace NMonitoring
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