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Fixes #1405
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72 changes: 72 additions & 0 deletions
72
exporters/memory/include/opentelemetry/exporters/memory/in_memory_metric_data.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
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| #pragma once | ||
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| #include <map> | ||
| #include <memory> | ||
| #include <string> | ||
| #include <tuple> | ||
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| #include "opentelemetry/exporters/memory/in_memory_data.h" | ||
| #include "opentelemetry/sdk/metrics/data/metric_data.h" | ||
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| OPENTELEMETRY_BEGIN_NAMESPACE | ||
| namespace sdk | ||
| { | ||
| namespace metrics | ||
| { | ||
| struct ResourceMetrics; | ||
| } | ||
| } // namespace sdk | ||
| namespace exporter | ||
| { | ||
| namespace memory | ||
| { | ||
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| /// The abstract base class for types used to store in-memory data backing an | ||
| /// InMemoryMetricExporter. | ||
| class InMemoryMetricData | ||
| { | ||
| public: | ||
| InMemoryMetricData() = default; | ||
| virtual ~InMemoryMetricData() = default; | ||
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| InMemoryMetricData(const InMemoryMetricData &) = delete; | ||
| InMemoryMetricData(InMemoryMetricData &&) = delete; | ||
| InMemoryMetricData &operator=(const InMemoryMetricData &) = delete; | ||
| InMemoryMetricData &operator=(InMemoryMetricData &&) = delete; | ||
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| virtual void Add(std::unique_ptr<sdk::metrics::ResourceMetrics> resource_metrics) = 0; | ||
| }; | ||
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| /// An implementation of InMemoryMetricData that stores full-fidelity data points in a circular | ||
| /// buffer. This allows tests to inspect every aspect of exported data, in exchange for a somewhat | ||
| /// cumbersome API. | ||
| class CircularBufferInMemoryMetricData final : public InMemoryMetricData, | ||
| public InMemoryData<sdk::metrics::ResourceMetrics> | ||
| { | ||
| public: | ||
| explicit CircularBufferInMemoryMetricData(size_t buffer_size); | ||
| void Add(std::unique_ptr<sdk::metrics::ResourceMetrics> resource_metrics) override; | ||
| }; | ||
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| /// An implementation of InMemoryMetricData that stores only the most recent data point in each time | ||
| /// series, and allows convenient lookups of time series. This makes simple tests easier to write. | ||
| class SimpleAggregateInMemoryMetricData final : public InMemoryMetricData | ||
| { | ||
| public: | ||
| using AttributeToPoint = std::map<opentelemetry::sdk::metrics::PointAttributes, | ||
| opentelemetry::sdk::metrics::PointType>; | ||
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| void Add(std::unique_ptr<sdk::metrics::ResourceMetrics> resource_metrics) override; | ||
| const AttributeToPoint &Get(const std::string &scope, const std::string &metric); | ||
| void Clear(); | ||
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| private: | ||
| std::map<std::tuple<std::string, std::string>, AttributeToPoint> data_; | ||
| }; | ||
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| } // namespace memory | ||
| } // namespace exporter | ||
| OPENTELEMETRY_END_NAMESPACE |
44 changes: 44 additions & 0 deletions
44
exporters/memory/include/opentelemetry/exporters/memory/in_memory_metric_exporter_factory.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| // Copyright The OpenTelemetry Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
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| #pragma once | ||
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| #include <memory> | ||
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| #include "opentelemetry/sdk/metrics/instruments.h" | ||
| #include "opentelemetry/version.h" | ||
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| OPENTELEMETRY_BEGIN_NAMESPACE | ||
| namespace sdk | ||
| { | ||
| namespace metrics | ||
| { | ||
| class PushMetricExporter; | ||
| } // namespace metrics | ||
| } // namespace sdk | ||
| namespace exporter | ||
| { | ||
| namespace memory | ||
| { | ||
| class InMemoryMetricData; | ||
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| /// A factory for InMemoryMetricExporter | ||
| class InMemoryMetricExporterFactory | ||
| { | ||
| public: | ||
| /// Create a InMemoryMetricExporter with a default buffer size and aggregation | ||
| /// temporality selector. | ||
| /// @param [out] data the InMemoryMetricData the exporter will write to, | ||
| /// for the caller to inspect | ||
| /// @param [in] buffer_size number of entries to save in the circular buffer | ||
| /// @param [in] temporality output temporality as a function of instrument kind | ||
| static std::unique_ptr<opentelemetry::sdk::metrics::PushMetricExporter> Create( | ||
| const std::shared_ptr<InMemoryMetricData> &data, | ||
| const sdk::metrics::AggregationTemporalitySelector &temporality); | ||
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| static std::unique_ptr<opentelemetry::sdk::metrics::PushMetricExporter> Create( | ||
| const std::shared_ptr<InMemoryMetricData> &data); | ||
| }; | ||
| } // namespace memory | ||
| } // namespace exporter | ||
| OPENTELEMETRY_END_NAMESPACE |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| #include "opentelemetry/exporters/memory/in_memory_metric_data.h" | ||
| #include "opentelemetry/sdk/instrumentationscope/instrumentation_scope.h" | ||
| #include "opentelemetry/sdk/metrics/export/metric_producer.h" | ||
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| OPENTELEMETRY_BEGIN_NAMESPACE | ||
| namespace exporter | ||
| { | ||
| namespace memory | ||
| { | ||
| using sdk::metrics::ResourceMetrics; | ||
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| CircularBufferInMemoryMetricData::CircularBufferInMemoryMetricData(size_t buffer_size) | ||
| : InMemoryData(buffer_size) | ||
| {} | ||
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| void CircularBufferInMemoryMetricData::Add(std::unique_ptr<ResourceMetrics> resource_metrics) | ||
| { | ||
| InMemoryData::Add(std::move(resource_metrics)); | ||
| } | ||
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| void SimpleAggregateInMemoryMetricData::Add(std::unique_ptr<ResourceMetrics> resource_metrics) | ||
| { | ||
| for (const auto &sm : resource_metrics->scope_metric_data_) | ||
| { | ||
| const auto &scope = sm.scope_->GetName(); | ||
| for (const auto &m : sm.metric_data_) | ||
| { | ||
| const auto &metric = m.instrument_descriptor.name_; | ||
| for (const auto &pda : m.point_data_attr_) | ||
| { | ||
| data_[{scope, metric}].insert({pda.attributes, pda.point_data}); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| const SimpleAggregateInMemoryMetricData::AttributeToPoint &SimpleAggregateInMemoryMetricData::Get( | ||
| const std::string &scope, | ||
| const std::string &metric) | ||
| { | ||
| return data_[{scope, metric}]; | ||
| } | ||
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| void SimpleAggregateInMemoryMetricData::Clear() | ||
| { | ||
| data_.clear(); | ||
| } | ||
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| } // namespace memory | ||
| } // namespace exporter | ||
| OPENTELEMETRY_END_NAMESPACE |
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