one/kit/logger-kit.js

const log4js = require('log4js')

class LoggerKit {}

LoggerKit.config = {
  appenders: {
    default: { type: 'console' }
  },
  categories: {
    default: { appenders: ['default'], level: log4js.levels.TRACE }
  }
}

LoggerKit.getLogger = function (categoryName) {
  return log4js.getLogger(categoryName)
}

LoggerKit.pushAppender = function (appenderName, appender) {
  LoggerKit.config.appenders[appenderName] = appender

  LoggerKit.rebuild()

  return log4js
}

LoggerKit.pushCategory = function (categoryName, category) {
  LoggerKit.config.categories[categoryName] = category

  LoggerKit.rebuild()

  return log4js.getLogger(categoryName)
}

LoggerKit.rebuild = function () {
  log4js.configure(LoggerKit.config)
}

LoggerKit.rebuild()

module.exports = LoggerKit