code: private synchronized void checkPath(String logPath) throws ParameterException {
  		Validate.notNull(path);
  		File cPath = new File(logPath);
  		if(!cPath.exists())
  			cPath.mkdirs();
  		if(!cPath.isDirectory())
  			throw new ParameterException(ErrorCode.INCOMPATIBILITY, logPath + " is not a valid path!");
  	}
docs: Sets the path for the file writer where output files are put in.
  @param logPath Desired log path.
  @throws ParameterException if the given path is <code>null</null> or not a directory.