public static void getFolder(HttpServletRequest request) throws Exception {
ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
long folderId = ParamUtil.getLong(request, "folderId");
Folder folder = null;
if ((folderId > 0) && (folderId != DLFolderConstants.DEFAULT_PARENT_FOLDER_ID)) {
folder = DLAppServiceUtil.getFolder(folderId);
if (folder.getModel() instanceof DLFolder) {
DLFolder dlFolder = (DLFolder) folder.getModel();
if (dlFolder.isInTrash() || dlFolder.isInTrashContainer()) {
throw new NoSuchFolderException();
}
}
} else {
DLPermission.check(
themeDisplay.getPermissionChecker(), themeDisplay.getScopeGroupId(), ActionKeys.VIEW);
}
request.setAttribute(WebKeys.DOCUMENT_LIBRARY_FOLDER, folder);
}
