public ActionForward generate(
ActionMapping mapping,
ActionForm actionForm,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
ExecutionCourse executionCourse = getExecutionCourse(request);
if (executionCourse == null) {
return mapping.findForward("fallback");
}
ArchiveOptions options = getOptions(request);
if (options == null) {
return prepare(mapping, actionForm, request, response);
}
String name = getArchiveName(executionCourse);
// NOTE: Using a DiskZipArchive instead of a ZipArchive because a
// ZipArchive
// writes directly to the response during the entire process and
// prevents
// the server from showing an error page when something goes wrong. This
// leaves the user with a corrupt Zip file and no other information.
Archive archive = new DiskZipArchive(response, name);
Fetcher fetcher = new Fetcher(archive, request, response);
queueResources(request, executionCourse, options, fetcher);
List<Content> contents = new ArrayList<Content>();
contents.add(MetaDomainObject.getMeta(ExecutionCourseSite.class).getAssociatedPortal());
contents.add(executionCourse.getSite());
FilterFunctionalityContext context = new FilterFunctionalityContext(request, contents);
fetcher.process(context);
archive.finish();
return null;
}
