public static RedirectAction success(final String content) {
   RedirectAction action = new RedirectAction();
   action.type = RedirectType.SUCCESS;
   action.content = content;
   return action;
 }
 public static RedirectAction dummy(final String content) {
   RedirectAction action = new RedirectAction();
   action.type = RedirectType.DUMMY;
   action.content = content;
   return action;
 }
 public static RedirectAction redirect(final String location) {
   RedirectAction action = new RedirectAction();
   action.type = RedirectType.REDIRECT;
   action.location = location;
   return action;
 }