Xoud_cfg_mgr.java

/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012-2017 gnosygnu@gmail.com

XOWA is licensed under the terms of the General Public License (GPL) Version 3,
or alternatively under the terms of the Apache License Version 2.0.

You may use XOWA according to either of these licenses as is most appropriate
for your project on a case-by-case basis.

The terms of each license can be found in the source code repository:

GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
*/
package gplx.xowa.users.data; import gplx.*; import gplx.xowa.*; import gplx.xowa.users.*;
import gplx.dbs.*; import gplx.dbs.cfgs.*;
public class Xoud_cfg_mgr {
	public Db_cfg_tbl Tbl() {return tbl;} private Db_cfg_tbl tbl;
	public static final String Tbl_name = "user_opt";
	public void Conn_(Db_conn new_conn, boolean created) {
		tbl = new Db_cfg_tbl(new_conn, Tbl_name);
		if (created) tbl.Create_tbl();
	}
	public int		Select_int_or(String grp, String key, int or)		{
		String rv = Select_str_or(grp, key, null);
		return rv == null ? or : Int_.parse_or(rv, or);
	}
	public byte[]	Select_bry_or(String key, byte[] or)				{return Select_bry_or(""	, key, or);}
	public byte[]	Select_bry_or(String grp, String key, byte[] or)	{
		String rv = Select_str_or(grp, key, null);
		return rv == null ? or : Bry_.new_u8(rv);
	}
	public String	Select_str_or(String grp, String key, String or) {
		String rv = tbl.Select_str_or(grp, key, null);
		return rv == null ? or : rv;
	}
	public byte[] Assert_bry_or(String key, byte[] or) {return Assert_bry_or("", key, or);}
	public byte[] Assert_bry_or(String grp, String key, byte[] or) {
		String rv = tbl.Select_str_or(grp, key, null);
		if (rv == null) {
			Insert_bry(grp, key, or);
			return or;
		}
		else
			return Bry_.new_u8(rv);
	}
	public void Upsert_int(String grp, String key, int val) {
		int exists = Select_int_or(grp, key, Int_.Min_value);
		if (exists == Int_.Min_value)
			Insert_int(grp, key, val);
		else
			Update_int(grp, key, val);
	}
	public void Upsert_str(String grp, String key, String val) {
		String exists = Select_str_or(grp, key, null);
		if (exists == null)
			Insert_str(grp, key, val);
		else
			Update_str(grp, key, val);
	}
	public void Update_str(String grp, String key, String val)	{Update_bry(grp, key, Bry_.new_u8(val));}
	public void Update_bry(String key, byte[] val)				{Update_bry("", key, val);}
	public void Update_bry(String grp, String key, byte[] val)	{tbl.Update_bry(grp, key, val);}
	public void Update_int(String grp, String key, int val)		{tbl.Update_int(grp, key, val);}
	public void Insert_str(String grp, String key, String val)	{Insert_bry(grp, key, Bry_.new_u8(val));}
	public void Insert_bry(String key, byte[] val)				{Insert_bry("", key, val);}
	public void Insert_bry(String grp, String key, byte[] val)	{tbl.Insert_bry(grp, key, val);}
	public void Insert_int(String grp, String key, int val)		{tbl.Insert_int(grp, key, val);}
	public int Next_id(String tbl_name) {
		String grp = "xowa." + tbl_name, key = "next_id";
		int next_id = tbl.Select_int_or(grp, key, 1);	// EX: xowa.cfg_history|next_id|1
		int new_val = next_id + 1;
		if (next_id == 1)
			tbl.Insert_int(grp, key, new_val);
		else
			tbl.Update_int(grp, key, new_val);
		return next_id;
	}
}