metallic-metrics/lib/metrics-gauge-cpu-mixin.js

StatsD's client for CARTO services

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
class MetricsGaugeCPUMixin {
  static mix(superclass) {
    return class extends superclass {
      constructor({ interval = 0, logger }) {
        super(...arguments);
        this.interval = interval;
        this.logger = logger;
      }

      async run() {
        if (this.interval) {
          let previousCPUUsage = process.cpuUsage();

          this.cpuInterval = setInterval(() => {
            const CPUUsage = process.cpuUsage(previousCPUUsage);

            Object.keys(CPUUsage).forEach(property => this.gauge(`cpu.${property}`, CPUUsage[property]));

            previousCPUUsage = CPUUsage;
          }, this.interval);

          this.logger.debug('Gauge CPU activated every %d seconds', this.interval / 1000);
        }

        return super.run();
      }

      async close() {
        clearInterval(this.cpuInterval);
        this.logger.debug('Gauge CPU interval cleared', this.interval / 1000);
        return super.close();
      }
    };
  }
}
exports.default = MetricsGaugeCPUMixin;
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