public static void Find_pages(List_adp rv, Xowe_wiki wiki, Dpl_itm itm) {
rv.Clear();
List_adp includes = itm.Ctg_includes();
if (includes == null) return;
int includes_len = includes.Count();
Ordered_hash old_regy = Ordered_hash_.New(),
new_regy = Ordered_hash_.New(),
cur_regy = Ordered_hash_.New();
Xodb_load_mgr load_mgr = wiki.Db_mgr().Load_mgr();
Xowd_page_itm tmp_page = new Xowd_page_itm();
Int_obj_ref tmp_id = Int_obj_ref.New_zero();
List_adp del_list = List_adp_.New();
int ns_filter = itm.Ns_filter();
Ordered_hash exclude_pages = Ordered_hash_.New();
Find_excludes(exclude_pages, wiki, load_mgr, tmp_page, tmp_id, itm.Ctg_excludes());
for (int i = 0; i < includes_len; i++) { // loop over includes
byte[] include = (byte[]) includes.Get_at(i);
cur_regy.Clear();
del_list.Clear();
Find_pages_in_ctg(cur_regy, wiki, load_mgr, tmp_page, tmp_id, include);
Del_old_pages_not_in_cur(i, tmp_id, old_regy, cur_regy, del_list);
Add_cur_pages_also_in_old(i, tmp_id, old_regy, cur_regy, new_regy, exclude_pages, ns_filter);
old_regy = new_regy;
new_regy = Ordered_hash_.New();
}
int pages_len = old_regy.Count();
for (int i = 0; i < pages_len; i++) { // loop over old and create pages
Int_obj_ref old_id = (Int_obj_ref) old_regy.Get_at(i);
rv.Add(new Xowd_page_itm().Id_(old_id.Val()));
}
wiki.Db_mgr().Load_mgr().Load_by_ids(Cancelable_.Never, rv, 0, pages_len);
rv.Sort_by(Xowd_page_itm_sorter.IdAsc);
}
private static void Del_old_pages_not_in_cur(
int i, Int_obj_ref tmp_id, Ordered_hash old_regy, Ordered_hash cur_regy, List_adp del_list) {
if (i == 0) return; // skip logic for first ctg (which doesn't have a predecessor)
int old_len = old_regy.Count();
for (int j = 0; j < old_len; j++) { // if cur is not in new, del it
Int_obj_ref old_id = (Int_obj_ref) old_regy.Get_at(j);
if (!cur_regy.Has(tmp_id.Val_(old_id.Val()))) // old_itm does not exist in cur_regy
del_list.Add(
old_id); // remove; EX: (A,B) in old; B only in cur; old should now be (A) only
}
int del_len = del_list.Count();
for (int j = 0; j < del_len; j++) {
Int_obj_ref old_itm = (Int_obj_ref) del_list.Get_at(j);
old_regy.Del(tmp_id.Val_(old_itm.Val()));
}
}
private static void Add_cur_pages_also_in_old(
int i,
Int_obj_ref tmp_id,
Ordered_hash old_regy,
Ordered_hash cur_regy,
Ordered_hash new_regy,
Ordered_hash exclude_pages,
int ns_filter) {
int found_len = cur_regy.Count();
for (int j = 0; j < found_len; j++) { // if new_page is in cur, add it
Xoctg_catpage_itm cur_itm = (Xoctg_catpage_itm) cur_regy.Get_at(j);
Xoa_ttl cur_ttl = cur_itm.Page_ttl();
if (cur_ttl == null) continue;
if (ns_filter != Dpl_itm.Ns_filter_null && ns_filter != cur_ttl.Ns().Id()) continue;
tmp_id.Val_(cur_itm.Page_id()); // set tmp_id, since it will be used at least once
if (exclude_pages.Has(tmp_id)) continue; // ignore excluded pages
if (i != 0) { // skip logic for first ctg (which doesn't have a predecessor)
if (!old_regy.Has(tmp_id)) continue; // cur_itm not in old_regy; ignore
}
new_regy.Add_as_key_and_val(Int_obj_ref.New(cur_itm.Page_id()));
}
}