Fetcher fetcher = new Fetcher(archive, request, response);
for (ProjectSubmission submission : projectSubmissions) {
StudentGroup group = submission.getStudentGroup();
fetcher.queue(new Resource(group.getGroupNumber() + getStudentsISTID(group) + "/"
+ submission.getProjectSubmissionFile().getFilename(), submission.getProjectSubmissionFile().getDownloadUrl()));
}
fetcher.process();
archive.finish();