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"use strict"; |
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/** |
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* @param {Object} winstonLogger |
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* @param {string} level |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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const wrapWinston = (winstonLogger, level, message, meta) => { |
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const argList = []; |
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argList.push(message); |
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if (meta) { |
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argList.push(meta); |
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} |
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winstonLogger[level].apply(winstonLogger, argList); |
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}; |
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class Logger { |
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/** |
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* |
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* @param {winston.Logger} logger |
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*/ |
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constructor(logger) { |
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this.logger = logger; |
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} |
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/** |
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* @public |
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* |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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debug(message, meta = {}) { |
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this.log('debug', message, meta); |
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} |
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/** |
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* @public |
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* |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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info(message, meta = {}) { |
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this.log('info', message, meta); |
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} |
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/** |
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* @public |
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* |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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warning(message, meta = {}) { |
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this.log('warn', message, meta); |
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} |
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/** |
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* @public |
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* |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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error(message, meta = {}) { |
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this.log('error', message, meta); |
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} |
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/** |
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* @protected |
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* Could be overridden by child class |
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* |
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* @param {string} message |
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* @param {Object} meta |
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* |
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* @returns {string} |
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*/ |
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normalizeMessage(message, meta = {}) {// eslint-disable-line no-unused-vars |
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return message; |
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} |
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/** |
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* @protected |
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* Could be overridden by child class |
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* |
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* @param {Object} meta |
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* |
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* @returns {Object} |
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*/ |
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normalizeMeta(meta = {}) { |
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return meta; |
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} |
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/** |
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* @protected |
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* |
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* @param {string} level |
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* @param {string} message |
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* @param {Object} meta |
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*/ |
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log(level, message, meta = {}) { |
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meta = this.normalizeMeta(meta); |
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wrapWinston( |
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this.logger, |
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level, |
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this.normalizeMessage(message, meta), |
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meta |
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); |
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} |
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} |
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module.exports = Logger; |
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