code: package it.unibz.inf.ontop.endpoint.controllers;
  
  import it.unibz.inf.ontop.utils.VersionInfo;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
  import org.springframework.web.bind.annotation.GetMapping;
  import org.springframework.web.bind.annotation.RestController;
  import org.springframework.web.servlet.ModelAndView;
  
  import java.util.HashMap;
  import java.util.Map;
  
  @RestController
  @ConditionalOnExpression("${disable-portal-page}==false")
  public class PortalController {
  
      private static final Logger log = LoggerFactory.getLogger(SparqlQueryController.class);
  
      @GetMapping(value = "/")
      public ModelAndView home() {
          Map<String, String> model = new HashMap<>();
          model.put("version", VersionInfo.getVersionInfo().getVersion());
          return new ModelAndView("portal", model);
      }
  }