code: String getControllerClass(String resource) {
  		ControllerFinder finder = new ControllerFinder(config);
  		String controllerClass = finder.findResource(resource);
  		LOGGER.debug("Controller class: {}", controllerClass);
  		return controllerClass;
  	}
docs: Gets controller class for a resource.
  
  @param resource
  Resource that will managed by the controller class.
  @return The fully qualified name of the controller class for this
  resource and extension.