43 lines
1.1 KiB
TypeScript

import { LogLevel } from './log-message';
import Logger from './logger';
const ROOT_LOGGER_NAME = 'ROOT';
/* tslint:disable:max-classes-per-file*/
export class LogService {
private loggers: { [key: string]: Logger };
public get ROOT_LOGGER() {
return this.loggers[ROOT_LOGGER_NAME];
}
public constructor() {
this.loggers = {};
this.loggers[ROOT_LOGGER_NAME] =
new Logger(ROOT_LOGGER_NAME, undefined, LogLevel.ALL);
}
public getLogger(name: string, threshold?: LogLevel): Logger {
if (this.loggers.hasOwnProperty(name)) { return this.loggers[name]; }
let parentLogger: Logger;
const parentLoggerName = Object.keys(this.loggers)
.filter((n: string) => name.startsWith(n))
.reduce((acc: string, cur: string) => acc.length > cur.length ? acc : cur, '');
if (parentLoggerName) {
parentLogger = this.loggers[parentLoggerName];
} else {
parentLogger = this.ROOT_LOGGER;
}
this.loggers[name] = parentLogger.createChildLogger(name, threshold);
return this.loggers[name];
}
}
export const logService = new LogService();
export default logService;