snippet.java

    @Security.Authenticated(ActionAuthenticator.class)
    public Result upload() {
        Logger.debug("upload!");
        Http.MultipartFormData<File> body = request().body().asMultipartFormData();
        Http.MultipartFormData.FilePart<File> picture = body.getFile("picture");
        Logger.debug("picture="+picture);
        if (picture != null) {
            String fileName = picture.getFilename();
            String contentType = picture.getContentType();
            String fileType = determineFileType(fileName);

            if (contentType.contains("image")) {
                File pictureFile = picture.getFile();
                Calendar c = Calendar.getInstance();
                int year = c.get(Calendar.YEAR);
                int month = c.get(Calendar.MONTH);
                File directoryFile = new File("/var/www/html/img/" + year + "/" + month + "/");
                directoryFile.mkdirs();
                try {
                    directoryFile = File.createTempFile("img", "." + fileType, directoryFile);
                    Files.write(directoryFile.toPath(), Files.readAllBytes(pictureFile.toPath()));
                } catch (IOException e) {
                    return internalServerError(JsonUtil.prepareJsonStatus(INTERNAL_SERVER_ERROR, "Could not place file on the server"));
                }
                Logger.debug("Filepath:" + directoryFile.toPath());

                int i = 0;
                String host = "http://" + request().host();
                i = host.lastIndexOf(":");
                host = host.substring(0, i);
                String url = host + getUrl(directoryFile.toPath(), "img");


                try {
                    UploadedMedia mediaRecord = new UploadedMedia(new URI(url), UserRepository.findUserByEmail(request().username()), contentType);
                    Logger.debug("Uploaded file=" + mediaRecord);
                    mediaRecord.save();
                    return created(JsonUtil.toJson(mediaRecord));
                } catch (URISyntaxException e) {
                    e.printStackTrace();
                    Logger.error(e.getMessage());
                }

            }
            else
            Logger.debug("contenttype does not contain image!");
        }
        else
            Logger.debug("picture is null!");
        return badRequest(JsonUtil.prepareJsonStatus(BAD_REQUEST, "Request did not contain a 'picture' key or valid picture."));

    }