@triviality/logger/src/FromLogLevelLogger.ts

Typescript loggers with an interface that support composition

import { LoggerInterface, LogLevel } from './LoggerInterface';
import { AbstractLogLevelLogger } from './AbstractLogLevelLogger';

export class FromLogLevelLogger extends AbstractLogLevelLogger implements LoggerInterface {

  constructor(private readonly logger: LoggerInterface, private logFrom: LogLevel) {
    super();
  }

  public log(level: LogLevel, message?: any, ...optionalParams: any[]): void {
    if (this.logFrom > level) {
      return;
    }
    this.logger.log(level, message, ...optionalParams);
  }

}