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113 lines
4.7 KiB
113 lines
4.7 KiB
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.MongoLogger = exports.MongoLoggableComponent = exports.SeverityLevel = void 0;
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const stream_1 = require("stream");
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const utils_1 = require("./utils");
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/** @internal */
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exports.SeverityLevel = Object.freeze({
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EMERGENCY: 'emergency',
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ALERT: 'alert',
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CRITICAL: 'critical',
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ERROR: 'error',
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WARNING: 'warn',
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NOTICE: 'notice',
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INFORMATIONAL: 'info',
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DEBUG: 'debug',
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TRACE: 'trace',
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OFF: 'off'
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});
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/** @internal */
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exports.MongoLoggableComponent = Object.freeze({
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COMMAND: 'command',
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TOPOLOGY: 'topology',
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SERVER_SELECTION: 'serverSelection',
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CONNECTION: 'connection'
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});
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/**
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* Parses a string as one of SeverityLevel
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*
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* @param s - the value to be parsed
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* @returns one of SeverityLevel if value can be parsed as such, otherwise null
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*/
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function parseSeverityFromString(s) {
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const validSeverities = Object.values(exports.SeverityLevel);
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const lowerSeverity = s?.toLowerCase();
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if (lowerSeverity != null && validSeverities.includes(lowerSeverity)) {
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return lowerSeverity;
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}
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return null;
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}
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/**
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* resolves the MONGODB_LOG_PATH and mongodbLogPath options from the environment and the
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* mongo client options respectively.
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*
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* @returns the Writable stream to write logs to
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*/
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function resolveLogPath({ MONGODB_LOG_PATH }, { mongodbLogPath }) {
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const isValidLogDestinationString = (destination) => ['stdout', 'stderr'].includes(destination.toLowerCase());
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if (typeof mongodbLogPath === 'string' && isValidLogDestinationString(mongodbLogPath)) {
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return mongodbLogPath.toLowerCase() === 'stderr' ? process.stderr : process.stdout;
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}
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// TODO(NODE-4813): check for minimal interface instead of instanceof Writable
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if (typeof mongodbLogPath === 'object' && mongodbLogPath instanceof stream_1.Writable) {
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return mongodbLogPath;
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}
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if (typeof MONGODB_LOG_PATH === 'string' && isValidLogDestinationString(MONGODB_LOG_PATH)) {
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return MONGODB_LOG_PATH.toLowerCase() === 'stderr' ? process.stderr : process.stdout;
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}
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return process.stderr;
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}
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/** @internal */
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class MongoLogger {
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constructor(options) {
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this.componentSeverities = options.componentSeverities;
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this.maxDocumentLength = options.maxDocumentLength;
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this.logDestination = options.logDestination;
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}
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/* eslint-disable @typescript-eslint/no-unused-vars */
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/* eslint-disable @typescript-eslint/no-empty-function */
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emergency(component, message) { }
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alert(component, message) { }
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critical(component, message) { }
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error(component, message) { }
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warn(component, message) { }
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notice(component, message) { }
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info(component, message) { }
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debug(component, message) { }
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trace(component, message) { }
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/**
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* Merges options set through environment variables and the MongoClient, preferring environment
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* variables when both are set, and substituting defaults for values not set. Options set in
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* constructor take precedence over both environment variables and MongoClient options.
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*
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* @remarks
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* When parsing component severity levels, invalid values are treated as unset and replaced with
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* the default severity.
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*
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* @param envOptions - options set for the logger from the environment
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* @param clientOptions - options set for the logger in the MongoClient options
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* @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger
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*/
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static resolveOptions(envOptions, clientOptions) {
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// client options take precedence over env options
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const combinedOptions = {
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...envOptions,
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...clientOptions,
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mongodbLogPath: resolveLogPath(envOptions, clientOptions)
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};
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const defaultSeverity = parseSeverityFromString(combinedOptions.MONGODB_LOG_ALL) ?? exports.SeverityLevel.OFF;
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return {
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componentSeverities: {
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command: parseSeverityFromString(combinedOptions.MONGODB_LOG_COMMAND) ?? defaultSeverity,
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topology: parseSeverityFromString(combinedOptions.MONGODB_LOG_TOPOLOGY) ?? defaultSeverity,
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serverSelection: parseSeverityFromString(combinedOptions.MONGODB_LOG_SERVER_SELECTION) ?? defaultSeverity,
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connection: parseSeverityFromString(combinedOptions.MONGODB_LOG_CONNECTION) ?? defaultSeverity,
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default: defaultSeverity
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},
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maxDocumentLength: (0, utils_1.parseUnsignedInteger)(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ?? 1000,
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logDestination: combinedOptions.mongodbLogPath
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};
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}
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}
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exports.MongoLogger = MongoLogger;
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//# sourceMappingURL=mongo_logger.js.map
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