@elastic/synthetics/dist/plugins/performance.js

Elastic synthetic monitoring agent

"use strict";
/**
 * MIT License
 *
 * Copyright (c) 2020-present, Elastic NV
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.PerformanceManager = void 0;
const supportedMetrics = new Set([
    'Timestamp',
    'Documents',
    'Frames',
    'JSEventListeners',
    'Nodes',
    'LayoutCount',
    'RecalcStyleCount',
    'LayoutDuration',
    'RecalcStyleDuration',
    'ScriptDuration',
    'TaskDuration',
    'JSHeapUsedSize',
    'JSHeapTotalSize',
]);
class PerformanceManager {
    driver;
    constructor(driver) {
        this.driver = driver;
    }
    async start() {
        await this.driver.client.send('Performance.enable');
    }
    async stop() {
        await this.driver.client.send('Performance.disable');
    }
    async getMetrics() {
        const { metrics } = await this.driver.client.send('Performance.getMetrics');
        return this.buildMetricsObject(metrics);
    }
    buildMetricsObject(metrics = []) {
        const result = {};
        for (const metric of metrics) {
            if (supportedMetrics.has(metric.name))
                result[metric.name] = metric.value;
        }
        return result;
    }
}
exports.PerformanceManager = PerformanceManager;
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