@SuppressWarnings("unchecked")
 public void execute(
     Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body)
     throws TemplateException, IOException {
   CmsSite site = FrontUtils.getSite(env);
   InvokeType type = DirectiveUtils.getInvokeType(params);
   Pagination page =
       bbsTopicMng.getMemberTopic(
           site.getId(),
           getCreaterId(params),
           FrontUtils.getPageNo(env),
           FrontUtils.getCount(params));
   Map<String, TemplateModel> paramWrap = new HashMap<String, TemplateModel>(params);
   paramWrap.put(OUT_PAGINATION, DEFAULT_WRAPPER.wrap(page));
   Map<String, TemplateModel> origMap = DirectiveUtils.addParamsToVariable(env, paramWrap);
   if (InvokeType.custom == type) {
     FrontUtils.includeTpl(TPL_MY_TOPIC, site, params, env);
     FrontUtils.includePagination(site, params, env);
   } else if (InvokeType.body == type) {
     body.render(env.getOut());
     FrontUtils.includePagination(site, params, env);
   } else {
     throw new RuntimeException("invoke type not handled: " + type);
   }
   DirectiveUtils.removeParamsFromVariable(env, paramWrap, origMap);
 }