private Message handleRequestWithIfModifiedSince(final Request request) throws IOException {
final Path path = Path.fromUri(request.uri());
final Resource resource = resolveResource(path);
try {
String date = getOnlyElement(request.headers().get(IF_MODIFIED_SINCE));
Date ifModifiedSince = new SimpleDateFormat().parse(date);
if (!ifModifiedSince.after(new Date()) && !(resource.lastModified().after(new Date()))) {
return redirectionNotModified();
} else {
return handleRequestWithoutIfModifiedSince(request);
}
} catch (ParseException e) {
return handleRequestWithoutIfModifiedSince(request);
}
}
