docs: @Override
  	public void validateSetup(Server server, Query query) throws ValidationException {
  		// Check if we've already created a logger for this file. If so, use it.
  		Logger logger;
  		if (loggers.containsKey(outputFile)) {
  			logger = getLogger(outputFile);
  		}else{
  			// need to create a logger
  			try {
  				logger = buildLogger(outputFile);
  				loggers.put(outputFile, logger);
  			} catch (IOException e) {
  				throw new ValidationException("Failed to setup logback", query, e);
  			}
  		}
  		logwriter = new LogWriter(logger,delimiter);
  	}