@Override
 public void modifyTournament(
     @WebParam(name = "tournamentId") String tournamentId,
     @WebParam(name = "date") String date,
     @WebParam(name = "location") String location,
     @WebParam(name = "surface") String surface,
     @WebParam(name = "draw") String draw,
     @WebParam(name = "numberOfSeeds") String numberOfSeeds)
     throws InvalidInputException {
   Tournament tournament = tournamentService.getTournament(Integer.parseInt(tournamentId));
   DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
   Date tournamentDate;
   try {
     tournamentDate = format.parse(date);
   } catch (ParseException e) {
     throw new InvalidInputException(e.getMessage(), "Invalid date format");
   }
   tournament.setTournamentDate(tournamentDate);
 }
 @Override
 @WebMethod(operationName = "addTournament")
 public void addTournament(
     @WebParam(name = "date") String date,
     @WebParam(name = "location") String location,
     @WebParam(name = "surface") String surface,
     @WebParam(name = "draw") String draw,
     @WebParam(name = "numberOfSeeds") String numberOfSeeds)
     throws InvalidInputException {
   Tournament tournament = new Tournament();
   DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
   Date tournamentDate;
   try {
     tournamentDate = format.parse(date);
   } catch (ParseException e) {
     throw new InvalidInputException(e.getMessage(), "Invalid date format");
   }
   tournament.setTournamentDate(tournamentDate);
   tournament.setLocation(location);
   tournament.setSurface(surface);
   int seedsNumber = Integer.parseInt(numberOfSeeds);
   tournament.setNumberOfSeeds(seedsNumber);
   tournament.setSeeds(seedsNumber != 0);
   tournamentService.addTournament(tournament);
 }