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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifndef ENABLE_METRICS_PREVIEW
# include "opentelemetry/common/spin_lock_mutex.h"
# include "opentelemetry/sdk/metrics/aggregation/aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/drop_aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/histogram_aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/lastvalue_aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/sum_aggregation.h"
# include "opentelemetry/sdk/metrics/instruments.h"
# include <mutex>
OPENTELEMETRY_BEGIN_NAMESPACE
namespace sdk
{
namespace metrics
{
class DefaultAggregation
{
public:
static std::unique_ptr<Aggregation> CreateAggregation(
const opentelemetry::sdk::metrics::InstrumentDescriptor &instrument_descriptor)
{
switch (instrument_descriptor.type_)
{
case InstrumentType::kCounter:
case InstrumentType::kUpDownCounter:
case InstrumentType::kObservableCounter:
case InstrumentType::kObservableUpDownCounter:
return (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
? std::move(std::unique_ptr<Aggregation>(new LongSumAggregation()))
: std::move(std::unique_ptr<Aggregation>(new DoubleSumAggregation()));
break;
case InstrumentType::kHistogram:
return (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
? std::move(std::unique_ptr<Aggregation>(new LongHistogramAggregation()))
: std::move(std::unique_ptr<Aggregation>(new DoubleHistogramAggregation()));
break;
case InstrumentType::kObservableGauge:
return (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
? std::move(std::unique_ptr<Aggregation>(new LongLastValueAggregation()))
: std::move(std::unique_ptr<Aggregation>(new DoubleLastValueAggregation()));
break;
default:
return std::move(std::unique_ptr<Aggregation>(new DropAggregation()));
};
}
static std::unique_ptr<Aggregation> CreateAggregation(AggregationType aggregation_type,
InstrumentDescriptor instrument_descriptor)
{
switch (aggregation_type)
{
case AggregationType::kDrop:
return std::unique_ptr<Aggregation>(new DropAggregation());
break;
case AggregationType::kHistogram:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(new LongHistogramAggregation());
}
else
{
return std::unique_ptr<Aggregation>(new DoubleHistogramAggregation());
}
break;
case AggregationType::kLastValue:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(new LongLastValueAggregation());
}
else
{
return std::unique_ptr<Aggregation>(new DoubleLastValueAggregation());
}
break;
case AggregationType::kSum:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(new LongSumAggregation());
}
else
{
return std::unique_ptr<Aggregation>(new DoubleSumAggregation());
}
break;
default:
return DefaultAggregation::CreateAggregation(instrument_descriptor);
}
}
static std::unique_ptr<Aggregation> CloneAggregation(AggregationType aggregation_type,
InstrumentDescriptor instrument_descriptor,
const Aggregation &to_copy)
{
const PointType point_data = to_copy.ToPoint();
switch (aggregation_type)
{
case AggregationType::kDrop:
return std::unique_ptr<Aggregation>(new DropAggregation());
case AggregationType::kHistogram:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(
new LongHistogramAggregation(nostd::get<HistogramPointData>(point_data)));
}
else
{
return std::unique_ptr<Aggregation>(
new DoubleHistogramAggregation(nostd::get<HistogramPointData>(point_data)));
}
case AggregationType::kLastValue:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(
new LongLastValueAggregation(nostd::get<LastValuePointData>(point_data)));
}
else
{
return std::unique_ptr<Aggregation>(
new DoubleLastValueAggregation(nostd::get<LastValuePointData>(point_data)));
}
case AggregationType::kSum:
if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
{
return std::unique_ptr<Aggregation>(
new LongSumAggregation(nostd::get<SumPointData>(point_data)));
}
else
{
return std::unique_ptr<Aggregation>(
new DoubleSumAggregation(nostd::get<SumPointData>(point_data)));
}
default:
return DefaultAggregation::CreateAggregation(instrument_descriptor);
}
}
};
} // namespace metrics
} // namespace sdk
OPENTELEMETRY_END_NAMESPACE
#endif
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