@azure/monitor-opentelemetry
Version:
Azure Monitor OpenTelemetry (Node.js)
69 lines • 2.77 kB
JavaScript
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
/* eslint-disable no-underscore-dangle*/
import * as fs from "node:fs";
import * as path from "node:path";
import { Logger } from "./logging/index.js";
import { dirName } from "./module.js";
const ENV_CONFIGURATION_FILE = "APPLICATIONINSIGHTS_CONFIGURATION_FILE";
const ENV_CONTENT = "APPLICATIONINSIGHTS_CONFIGURATION_CONTENT";
/**
* Azure Monitor OpenTelemetry Client Configuration through JSON File
* @internal
*/
export class JsonConfig {
/** Get Singleton instance */
static getInstance() {
if (!JsonConfig._instance) {
JsonConfig._instance = new JsonConfig();
}
return JsonConfig._instance;
}
/**
* Initializes a new instance of the JsonConfig class.
*/
constructor() {
let jsonString = "";
this._tempDir = "";
const contentJsonConfig = process.env[ENV_CONTENT];
// JSON string added directly in env variable
if (contentJsonConfig) {
jsonString = contentJsonConfig;
}
// JSON file
else {
const configFileName = "applicationinsights.json";
const rootPath = path.join(dirName(), "../../../"); // Root of folder (__dirname = ../dist-esm/src)
this._tempDir = path.join(rootPath, configFileName); // default
const configFile = process.env[ENV_CONFIGURATION_FILE];
if (configFile) {
if (path.isAbsolute(configFile)) {
this._tempDir = configFile;
}
else {
this._tempDir = path.join(rootPath, configFile); // Relative path to applicationinsights folder
}
}
try {
jsonString = fs.readFileSync(this._tempDir, "utf8");
}
catch (err) {
Logger.getInstance().info("Failed to read JSON config file: ", err);
}
}
try {
const jsonConfig = JSON.parse(jsonString);
this.azureMonitorExporterOptions = jsonConfig.azureMonitorExporterOptions;
this.samplingRatio = jsonConfig.samplingRatio;
this.instrumentationOptions = jsonConfig.instrumentationOptions;
this.browserSdkLoaderOptions = jsonConfig.browserSdkLoaderOptions;
this.enableLiveMetrics = jsonConfig.enableLiveMetrics;
this.enableStandardMetrics = jsonConfig.enableStandardMetrics;
this.enableTraceBasedSamplingForLogs = jsonConfig.enableTraceBasedSamplingForLogs;
}
catch (err) {
Logger.getInstance().info("Missing or invalid JSON config file: ", err);
}
}
}
//# sourceMappingURL=jsonConfig.js.map