code: public static String readTemplate(String root, String template) throws IOException {
  		if (root == null) {
  			return readTemplate(template);
  		}
  		String settingsFile = root + "/" + Defaults.TemplateDir + "/" + template + Defaults.JsonFileExtension;
  		return readFileFromClasspath(settingsFile);
  	}
docs: Read a template
  @param root dir within the classpath
  @param template template name (.json will be appended)
  @return The template content
  @throws IOException if the connection with elasticsearch is failing