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v2.7.2.1

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gnosygnu
2015-07-12 21:10:02 -04:00
commit 794b5a232f
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140_dbs/src/gplx/dbs/engines/tdbs/TdbDbLoadMgr.java Normal file
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/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.dbs.engines.tdbs; import gplx.*; import gplx.dbs.*; import gplx.dbs.engines.*;
class TdbDbLoadMgr {
public TdbDatabase LoadTbls(Io_url dbInfo) {
TdbDatabase db = TdbDatabase.new_(dbInfo);
if (!Io_mgr.I.ExistsFil(dbInfo)) {
db.IsNew_set(true);
return db;
}
DataRdr rdr = MakeDataRdr(dbInfo);
LoadTblsByRdr(db, rdr);
return db;
}
public void LoadTbl(TdbDatabase db, TdbTable tbl) {
DataRdr rootRdr = MakeDataRdr(tbl.File().Path());
LoadTblsByRdr(db, rootRdr);
}
void LoadTblsByRdr(TdbDatabase db, DataRdr rootRdr) {
DataRdr rdr = rootRdr.Subs();
while (rdr.MoveNextPeer()) {
String name = rdr.NameOfNode();
if (String_.Eq(name, TdbFileList.StoreTblName)) db.Files().DataObj_Rdr(rdr);
else if (String_.Eq(name, TdbTableList.StoreTableName)) db.Tables().DataObj_Rdr(rdr, db.Files());
else db.Tables().Get_by_or_fail(rdr.NameOfNode()).DataObj_Rdr(rdr);
}
if (db.Files().Count() == 0) throw Exc_.new_("fatal error: db has no files", "connectInfo", db.DbUrl());
}
DataRdr MakeDataRdr(Io_url fil) {
String text = Io_mgr.I.LoadFilStr(fil);
return TdbStores.rdr_(text);
}
public static TdbDbLoadMgr new_() {return new TdbDbLoadMgr();} TdbDbLoadMgr() {}
}