@metrics/process/lib/collector-active-handles-total.js

Module for collecting different process and system metrics and providing them as a metric stream

"use strict";

const Metric = require("@metrics/metric");

const CollectorActiveHandlesTotal = class CollectorActiveHandlesTotal {
	constructor(prefix = "") {
		Object.defineProperty(this, "prefix", {
			value: prefix,
		});

		Object.defineProperty(this, "collectable", {
			value: typeof process._getActiveHandles === "function",
		});
	}

	get [Symbol.toStringTag]() {
		return "CollectorActiveHandlesTotal";
	}

	collect(timestamp) {
		if (!this.collectable) {
			return null;
		}

		return [
			new Metric({
				name: `${this.prefix}nodejs_active_handles_total`,
				description: "Total number of handles",
				type: 1,
				value: process._getActiveHandles().length,
				timestamp,
			}),
		];
	}
};

module.exports = CollectorActiveHandlesTotal;