Method resolveOptions

src/mongo_logger.ts:1026–1080

* Merges options set through environment variables and the MongoClient, preferring environment * variables when both are set, and substituting defaults for values not set. Options set in * constructor take precedence over both environment variables and MongoClient options. * * @remarks

(
    envOptions: MongoLoggerEnvOptions,
    clientOptions: MongoLoggerMongoClientOptions
  )

   * @returns a MongoLoggerOptions object to be used when instantiating a new MongoLogger
   */
  static resolveOptions(
    envOptions: MongoLoggerEnvOptions,
    clientOptions: MongoLoggerMongoClientOptions
  ): MongoLoggerOptions {
    // client options take precedence over env options
    const resolvedLogPath = resolveLogPath(envOptions, clientOptions);
    const combinedOptions = {
      ...envOptions,
      ...clientOptions,
      mongodbLogPath: resolvedLogPath.mongodbLogPath,
      mongodbLogPathIsStdErr: resolvedLogPath.mongodbLogPathIsStdErr
    };
    const defaultSeverity = resolveSeverityConfiguration(
      combinedOptions.mongodbLogComponentSeverities?.default,
      combinedOptions.MONGODB_LOG_ALL,
      SeverityLevel.OFF
    );

    return {
      componentSeverities: {
        command: resolveSeverityConfiguration(
          combinedOptions.mongodbLogComponentSeverities?.command,
          combinedOptions.MONGODB_LOG_COMMAND,
          defaultSeverity
        ),
        topology: resolveSeverityConfiguration(
          combinedOptions.mongodbLogComponentSeverities?.topology,
          combinedOptions.MONGODB_LOG_TOPOLOGY,
          defaultSeverity
        ),
        serverSelection: resolveSeverityConfiguration(
          combinedOptions.mongodbLogComponentSeverities?.serverSelection,
          combinedOptions.MONGODB_LOG_SERVER_SELECTION,
          defaultSeverity
        ),
        connection: resolveSeverityConfiguration(
          combinedOptions.mongodbLogComponentSeverities?.connection,
          combinedOptions.MONGODB_LOG_CONNECTION,
          defaultSeverity
        ),
        client: resolveSeverityConfiguration(
          combinedOptions.mongodbLogComponentSeverities?.client,
          combinedOptions.MONGODB_LOG_CLIENT,
          defaultSeverity
        ),
        default: defaultSeverity
      },
      maxDocumentLength:
        combinedOptions.mongodbLogMaxDocumentLength ??
        parseUnsignedInteger(combinedOptions.MONGODB_LOG_MAX_DOCUMENT_LENGTH) ??
        1000,
      logDestination: combinedOptions.mongodbLogPath,
      logDestinationIsStdErr: combinedOptions.mongodbLogPathIsStdErr
    };
  }
}