protected UploadOptions parseOptions(HttpServletRequest request) {
UploadOptions options = UploadOptions.Builder.withDefaults();
String maxPerBlob = request.getParameter("max_per_blob");
if (maxPerBlob != null) {
options.maxUploadSizeBytesPerBlob(Long.parseLong(maxPerBlob));
}
String maxAll = request.getParameter("max_all");
if (maxAll != null) {
options.maxUploadSizeBytes(Long.parseLong(maxAll));