@opentelemetry/sdk-metrics
Version:
72 lines • 2.49 kB
JavaScript
;
/*
* Copyright The OpenTelemetry Authors
* SPDX-License-Identifier: Apache-2.0
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.MetricCollector = void 0;
const core_1 = require("@opentelemetry/core");
/**
* An internal opaque interface that the MetricReader receives as
* MetricProducer. It acts as the storage key to the internal metric stream
* state for each MetricReader.
*/
class MetricCollector {
_sharedState;
_metricReader;
constructor(sharedState, metricReader) {
this._sharedState = sharedState;
this._metricReader = metricReader;
}
async collect(options) {
const collectionTime = (0, core_1.millisToHrTime)(Date.now());
const scopeMetrics = [];
const errors = [];
const meterCollectionPromises = Array.from(this._sharedState.meterSharedStates.values()).map(async (meterSharedState) => {
const current = await meterSharedState.collect(this, collectionTime, options);
// only add scope metrics if available
if (current?.scopeMetrics != null) {
scopeMetrics.push(current.scopeMetrics);
}
// only add errors if available
if (current?.errors != null) {
errors.push(...current.errors);
}
});
await Promise.all(meterCollectionPromises);
return {
resourceMetrics: {
resource: this._sharedState.resource,
scopeMetrics: scopeMetrics,
},
errors: errors,
};
}
/**
* Delegates for MetricReader.forceFlush.
*/
async forceFlush(options) {
await this._metricReader.forceFlush(options);
}
/**
* Delegates for MetricReader.shutdown.
*/
async shutdown(options) {
await this._metricReader.shutdown(options);
}
selectAggregationTemporality(instrumentType) {
return this._metricReader.selectAggregationTemporality(instrumentType);
}
selectAggregation(instrumentType) {
return this._metricReader.selectAggregation(instrumentType);
}
/**
* Select the cardinality limit for the given {@link InstrumentType} for this
* collector.
*/
selectCardinalityLimit(instrumentType) {
return this._metricReader.selectCardinalityLimit?.(instrumentType) ?? 2000;
}
}
exports.MetricCollector = MetricCollector;
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