@RequestMapping(value = "/submitpaper", method = RequestMethod.POST)
public String submitPaper(MultipartHttpServletRequest request) throws Exception {
String college = request.getParameter("college");
String branch = request.getParameter("branch");
String subject = request.getParameter("subject");
String description = request.getParameter("description");
List<MultipartFile> papers = request.getFiles("papers");
PaperSubmitRequest paperSubmitRequest =
new PaperSubmitRequest(college, branch, subject, description);
paperSubmitRequestDao.save(paperSubmitRequest);
serverStorage.uploadFiles(
serverStorage.getRequestsDir() + paperSubmitRequest.getRequestID(), papers);
return "redirect:/";
}
@ResponseBody
@RequestMapping(value = "/increasecounter/{paperID}", method = RequestMethod.POST)
public void increaseCounterAndDownloadPaper(
@PathVariable("paperID") String paperID, HttpServletResponse response) {
LOG.debug("Inside UserController.increaseCounter(), paperID = " + paperID);
Paper paper = paperDao.get(Integer.parseInt(paperID));
paper.increaseCounter();
paperDao.save(paper);
// Downloading Paper
response.setHeader("Content-Disposition", "attachment; filename=" + paper.getPath());
try {
OutputStream out = response.getOutputStream();
File file =
serverStorage.getFirstFileFromDirectory(serverStorage.getPapersDir() + paper.getPath());
out.write(FileUtils.readFileToByteArray(file));
out.flush();
out.close();
} catch (IOException e) {
LOG.error("Error while downloading Paper.", e);
}
}