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'use strict';
const Utilities = require('../utilities');
/**
* Logger for the javascript console.
*
* @implements ILogger
* @memberof Loggers
* @class Console
*/
module.exports = class ConsoleLogger {
constructor(config) {
/**
* The console it will write to, can be any object that looks
* and acts like a console, including other cologne objects.
*
* @name console
* @instance
* @memberof Loggers.Console
* @type Object
* @default global.console
*/
this.console = console;
/**
* The formatter it will use to output the log. If not present it
* will output raw JSON
*
* @name formatter
* @instance
* @memberof Loggers.Console
* @type IFormatter
* @default null
*/
this.formatter = null;
Object.assign(this, config);
}
/**
* Main entry point, for each incoming argument it will attempt to
* format and send to the console.
*
* @function log
* @instance
* @memberof Loggers.Console
* @return {undefined}
*/
log(...logs) {
const formattedLogs = logs.map((log) => ({ log: this._format(log), level: log._level }));
for (const { log, level } of formattedLogs) {
this._log(log, level );
}
}
// Routes an individual log to the appropriatet console
_log(log, level) {
switch (level) {
case 0:
case 1:
case 2:
case 3:
this.console.error(log);
break;
case 4:
this.console.warn(log);
break;
case 5:
case 6:
this.console.info(log);
break;
case 7:
default:
this.console.log(log);
break;
}
}
_format(logObject) {
if (this.formatter) {
return this.formatter.format(logObject);
}
return Utilities.stringify(logObject);
}
};
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