mirror of
https://github.com/gnosygnu/xowa.git
synced 2025-06-08 02:14:21 +00:00
67 lines
2.6 KiB
Java
67 lines
2.6 KiB
Java
/*
|
|
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; import gplx.*;
|
|
import gplx.dbs.engines.*;
|
|
import gplx.dbs.qrys.bats.*;
|
|
public class Db_conn_pool { // PURPOSE: cache one connection per connection_string
|
|
private final Ordered_hash hash = Ordered_hash_.New();
|
|
public Db_batch_mgr Batch_mgr() {return batch_mgr;} private final Db_batch_mgr batch_mgr = new Db_batch_mgr();
|
|
public void Del(Db_conn_info url) {hash.Del(url.Db_api());}
|
|
public Db_conn Get_or_new(String s) {return Get_or_new(Db_conn_info_.parse(s));}
|
|
public Db_conn Get_or_new(Db_conn_info url) {
|
|
Db_conn rv = (Db_conn)hash.Get_by(url.Db_api());
|
|
if (rv == null) {
|
|
Db_engine prime = (Db_engine)prime_hash.Get_by(url.Key()); if (prime == null) Err_.new_wo_type("db engine prototype not found", "key", url.Key());
|
|
Db_engine clone = prime.New_clone(url);
|
|
rv = new Db_conn(clone);
|
|
clone.Batch_mgr().Copy(clone.Tid(), batch_mgr);
|
|
hash.Add(url.Db_api(), rv);
|
|
}
|
|
return rv;
|
|
}
|
|
public void Add_existing(Db_conn conn) {
|
|
hash.Add(conn.Conn_info().Db_api(), conn);
|
|
}
|
|
public void Rls_all() {
|
|
int len = hash.Len();
|
|
Db_conn[] rls_ary = new Db_conn[len];
|
|
for (int i = 0; i < len; ++i)
|
|
rls_ary[i] = (Db_conn)hash.Get_at(i);
|
|
for (int i = 0; i < len; ++i)
|
|
rls_ary[i].Rls_conn();
|
|
hash.Clear();
|
|
}
|
|
|
|
private final Hash_adp prime_hash = Hash_adp_.New();
|
|
public static final Db_conn_pool Instance = new Db_conn_pool(); Db_conn_pool() {this.Init();}
|
|
public void Primes__add(Db_engine... ary) { // PUBLIC.DRD:
|
|
for (Db_engine itm : ary)
|
|
prime_hash.Add(itm.Tid(), itm);
|
|
}
|
|
private void Init() {
|
|
this.Primes__add
|
|
( gplx.dbs.engines.noops .Noop_engine.Instance
|
|
, gplx.dbs.engines.mems .Mem_engine.Instance
|
|
, gplx.dbs.engines.sqlite .Sqlite_engine.Instance
|
|
, gplx.dbs.engines.mysql .Mysql_engine.Instance
|
|
, gplx.dbs.engines.postgres .Postgres_engine.Instance
|
|
, gplx.dbs.engines.tdbs .TdbEngine.Instance
|
|
);
|
|
}
|
|
}
|