code: protected void direct() {
          final FwAssistDirection direction = assistAssistDirection();
          appResource = filterEnvSwitching(direction.assistAppConfig());
          extendsResourceList.clear(); // for reload
          extendsResourceList.addAll(filterEnvSwitchingList(direction.assistExtendsConfigList()));
          final PropertyFilter specified = direction.assistConfigPropertyFilter();
          propertyFilter = specified != null ? specified : createDefaultPropertyFilter();
      }
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