105 lines
4.3 KiB
JavaScript
105 lines
4.3 KiB
JavaScript
/*
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* Copyright The OpenTelemetry Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { getEnv } from '@opentelemetry/core';
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import { AggregationTemporality, InstrumentType, Aggregation, } from '@opentelemetry/sdk-metrics';
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import { AggregationTemporalityPreference, } from './OTLPMetricExporterOptions';
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import { diag } from '@opentelemetry/api';
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export const CumulativeTemporalitySelector = () => AggregationTemporality.CUMULATIVE;
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export const DeltaTemporalitySelector = (instrumentType) => {
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switch (instrumentType) {
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case InstrumentType.COUNTER:
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case InstrumentType.OBSERVABLE_COUNTER:
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case InstrumentType.GAUGE:
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case InstrumentType.HISTOGRAM:
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case InstrumentType.OBSERVABLE_GAUGE:
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return AggregationTemporality.DELTA;
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case InstrumentType.UP_DOWN_COUNTER:
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case InstrumentType.OBSERVABLE_UP_DOWN_COUNTER:
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return AggregationTemporality.CUMULATIVE;
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}
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};
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export const LowMemoryTemporalitySelector = (instrumentType) => {
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switch (instrumentType) {
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case InstrumentType.COUNTER:
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case InstrumentType.HISTOGRAM:
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return AggregationTemporality.DELTA;
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case InstrumentType.GAUGE:
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case InstrumentType.UP_DOWN_COUNTER:
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case InstrumentType.OBSERVABLE_UP_DOWN_COUNTER:
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case InstrumentType.OBSERVABLE_COUNTER:
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case InstrumentType.OBSERVABLE_GAUGE:
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return AggregationTemporality.CUMULATIVE;
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}
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};
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function chooseTemporalitySelectorFromEnvironment() {
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const env = getEnv();
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const configuredTemporality = env.OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE.trim().toLowerCase();
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if (configuredTemporality === 'cumulative') {
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return CumulativeTemporalitySelector;
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}
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if (configuredTemporality === 'delta') {
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return DeltaTemporalitySelector;
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}
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if (configuredTemporality === 'lowmemory') {
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return LowMemoryTemporalitySelector;
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}
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diag.warn(`OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE is set to '${env.OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE}', but only 'cumulative' and 'delta' are allowed. Using default ('cumulative') instead.`);
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return CumulativeTemporalitySelector;
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}
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function chooseTemporalitySelector(temporalityPreference) {
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// Directly passed preference has priority.
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if (temporalityPreference != null) {
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if (temporalityPreference === AggregationTemporalityPreference.DELTA) {
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return DeltaTemporalitySelector;
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}
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else if (temporalityPreference === AggregationTemporalityPreference.LOWMEMORY) {
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return LowMemoryTemporalitySelector;
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}
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return CumulativeTemporalitySelector;
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}
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return chooseTemporalitySelectorFromEnvironment();
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}
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function chooseAggregationSelector(config) {
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if (config === null || config === void 0 ? void 0 : config.aggregationPreference) {
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return config.aggregationPreference;
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}
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else {
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return (_instrumentType) => Aggregation.Default();
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}
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}
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export class OTLPMetricExporterBase {
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constructor(exporter, config) {
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this._otlpExporter = exporter;
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this._aggregationSelector = chooseAggregationSelector(config);
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this._aggregationTemporalitySelector = chooseTemporalitySelector(config === null || config === void 0 ? void 0 : config.temporalityPreference);
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}
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export(metrics, resultCallback) {
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this._otlpExporter.export([metrics], resultCallback);
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}
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async shutdown() {
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await this._otlpExporter.shutdown();
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}
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forceFlush() {
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return Promise.resolve();
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}
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selectAggregation(instrumentType) {
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return this._aggregationSelector(instrumentType);
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}
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selectAggregationTemporality(instrumentType) {
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return this._aggregationTemporalitySelector(instrumentType);
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}
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}
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//# sourceMappingURL=OTLPMetricExporterBase.js.map
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