code: @Override
  	public void setJsonDirOrFile(String jsonDirOrFile) {
  		File file = new File(jsonDirOrFile);
  		if (file.isDirectory()) configuration.setProcessConfigDir(file);
  		else configuration.setProcessConfigFile(file);
  	}
docs: /* (non-Javadoc)
  @see com.googlecode.jmxtrans.monitoring.ManagedJmxTransformerProcessMXBean#setJsonDirOrFile(java.io.File)