@Transactional(readOnly = true) public Result listUsedProblems(long contestId, long pageIndex) throws ContestNotFoundException { Contest contest = contestService.findContestById(contestId); if (!ContestControllerUtils.getInstance() .isAllowedToEnterContest(contest, IdentityUtils.getUserJid())) { return ContestControllerUtils.getInstance() .tryEnteringContest(contest, IdentityUtils.getUserJid()); } Page<ContestProblem> pageOfContestProblems = contestProblemService.getPageOfUsedProblemsInContest( contest.getJid(), pageIndex, PAGE_SIZE); ImmutableList.Builder<ContestProblem> replacementBuilder = ImmutableList.builder(); for (ContestProblem contestProblem : pageOfContestProblems.getData()) { contestProblem.setTotalSubmissions( programmingSubmissionService.countProgrammingSubmissionsByUserJid( contest.getJid(), contestProblem.getProblemJid(), IdentityUtils.getUserJid())); replacementBuilder.add(contestProblem); } pageOfContestProblems = new Page<>( replacementBuilder.build(), pageOfContestProblems.getTotalRowsCount(), pageOfContestProblems.getPageIndex(), pageOfContestProblems.getPageSize()); List<String> problemJids = pageOfContestProblems .getData() .stream() .map(cp -> cp.getProblemJid()) .collect(Collectors.toList()); Map<String, String> problemTitlesMap = SandalphonResourceDisplayNameUtils.buildTitlesMap( JidCacheServiceImpl.getInstance().getDisplayNames(problemJids), ContestControllerUtils.getInstance().getCurrentStatementLanguage()); LazyHtml content = new LazyHtml( listUsedProblemsView.render( contest.getId(), pageOfContestProblems, pageIndex, problemTitlesMap)); content.appendLayout(c -> heading3Layout.render(Messages.get("problem.problems"), c)); if (isAllowedToSuperviseProblems(contest)) { appendSubtabsLayout(content, contest); } ContestControllerUtils.getInstance() .appendTabsLayout(content, contest, IdentityUtils.getUserJid()); UrielControllerUtils.getInstance().appendSidebarLayout(content); appendBreadcrumbsLayout( content, contest, new InternalLink( Messages.get("problem.list"), routes.ContestProblemController.viewUsedProblems(contest.getId()))); UrielControllerUtils.getInstance().appendTemplateLayout(content, "Contest - Problems"); return UrielControllerUtils.getInstance().lazyOk(content); }