report.build(searchBean);
PhdGuidersReport guidersReport = new PhdGuidersReport(workbook);
guidersReport.build(searchBean);
EPFLCandidatesReport epflReport = new EPFLCandidatesReport(workbook);
epflReport.build(searchBean);
RecommendationLetterReport recommendationLetterReport = new RecommendationLetterReport(workbook);
recommendationLetterReport.build(searchBean);
response.setContentType("application/vnd.ms-excel");