@opentelemetry/instrumentation-runtime-node/build/src/metrics/activeResourcesCollector.js

OpenTelemetry instrumentation for Node.js Performance measurement API

"use strict";
/*
 * Copyright The OpenTelemetry Authors
 * SPDX-License-Identifier: Apache-2.0
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.ActiveResourcesCollector = void 0;
const baseCollector_1 = require("./baseCollector");
const semconv_1 = require("../semconv");
class ActiveResourcesCollector extends baseCollector_1.BaseCollector {
    _knownTypes = new Set();
    updateMetricInstruments(meter) {
        const activeResources = meter.createObservableGauge(semconv_1.METRIC_V8JS_RESOURCE_ACTIVE, {
            description: 'Count of the active resources that are currently keeping the event loop alive.',
            unit: '{resource}',
        });
        meter.addBatchObservableCallback(observableResult => {
            if (!this._config.enabled)
                return;
            const data = this.scrape();
            const pdata = {};
            for (const type of data) {
                if (Object.hasOwn(pdata, type)) {
                    pdata[type] += 1;
                }
                else {
                    pdata[type] = 1;
                }
                this._knownTypes.add(type);
            }
            for (const key of this._knownTypes) {
                observableResult.observe(activeResources, Object.hasOwn(pdata, key) ? pdata[key] : 0, { [semconv_1.ATTR_V8JS_RESOURCE_TYPE]: key });
            }
        }, [activeResources]);
    }
    internalEnable() { }
    internalDisable() { }
    scrape() {
        return process.getActiveResourcesInfo();
    }
}
exports.ActiveResourcesCollector = ActiveResourcesCollector;
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