public static Io_stream_rdr Get_rdr_or_null(
Io_url src_fil, Io_url src_dir, Io_stream_unzip_mgr unzip_mgr, String... filter_ary) {
IoItmFil src_itm = null;
if (src_fil != null) src_itm = Io_mgr.I.QueryFil(src_fil);
// specified file doesn't exist; try to find similar file based on filter
if (src_itm == null || !src_itm.Exists()) {
src_itm = Get_itm_by_filters(src_dir, filter_ary);
if (src_itm == null) return null;
}
// return rdr
Io_url src_itm_url = src_itm.Url();
Io_stream_rdr rv =
unzip_mgr.Handles(src_itm_url)
? unzip_mgr.New_rdr(src_itm_url)
: Io_stream_rdr_.file_(src_itm_url);
rv.Len_(src_itm.Size());
return rv;
}
private void Download_exec(Xodb_tbl_oimg_xfer_itm fsdb) {
Io_stream_rdr src_rdr = src_bin_mgr.Find_as_rdr(Xof_exec_tid.Tid_wiki_page, fsdb);
try {
if (src_rdr == Io_stream_rdr_.Noop) { // download failed
++exec_fail;
usr_dlg.Warn_many(
"",
"",
"failed: ttl=~{0}",
String_.Format("[[File:{0}|{1}px]]", fsdb.Orig_ttl(), fsdb.Html_w()));
Print_progress(fsdb);
} else { // download passed
long src_rdr_len = src_rdr.Len();
int lnki_tier_id = fsdb.Lnki_tier_id();
if (src_rdr_len > download_size_max && !Int_.In(lnki_tier_id, download_keep_tier_ids)) {
usr_dlg.Warn_many(
"",
"",
"skipped; ttl=~{0} w=~{1} size=~{2} tier=~{3}",
fsdb.Orig_ttl(),
fsdb.Lnki_w(),
src_rdr_len,
lnki_tier_id);
return;
}
if (trg_bin_fil == null) // no trg_bin_fil
Make_trg_bin_file(Bool_.Y, fsdb, src_rdr_len);
else if (trg_bin_fil.Bin_len() + src_rdr_len
> trg_bin_db_max) // or trg_bin_fil is out of space
Make_trg_bin_file(Bool_.N, fsdb, src_rdr_len);
else if (prv_lnki_tier_id != lnki_tier_id) { // or tier has changed
if (prv_lnki_tier_id != -1 && !bin_db_mgr.Schema_is_1()) // do not increment dbs for v1
Make_trg_bin_file(Bool_.Y, fsdb, src_rdr_len);
prv_lnki_tier_id = lnki_tier_id;
}
trg_bin_updater.Save_bin(trg_mnt_itm, trg_atr_fil, trg_bin_fil, fsdb, src_rdr, src_rdr_len);
}
} finally {
src_rdr.Rls();
}
}
