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55 lines
2.5 KiB
Java
55 lines
2.5 KiB
Java
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/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx.dbs; import gplx.*;
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import gplx.dbs.engines.sqlite.*;
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public class Db_attach_cmd {
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private final boolean diff_db;
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private final Db_conn conn; private final String attach_name; private final Io_url attach_url;
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private final List_adp sql_list = List_adp_.new_();
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Db_attach_cmd(Db_conn conn, String attach_name, Io_url attach_url) {
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this.conn = conn; this.attach_name = attach_name; this.attach_url = attach_url;
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Sqlite_conn_info conn_info = (Sqlite_conn_info)conn.Conn_info();
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this.diff_db = !String_.Eq(conn_info.Url().Raw(), attach_url.Raw());
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}
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public Db_attach_cmd Add_fmt(String msg, String sql_fmt, Object... sql_args) {
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String sql = String_.Format(sql_fmt, sql_args);
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sql = String_.Replace(sql, "<attach_db>", diff_db ? attach_name + "." : ""); // replace <attach> with either "attach_db." or "";
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sql_list.Add(new Db_exec_sql_by_attach_itm(msg, sql));
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return this;
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}
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public void Exec() {
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Gfo_usr_dlg usr_dlg = Gfo_usr_dlg_.I;
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if (diff_db) conn.Env_db_attach(attach_name, attach_url);
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conn.Txn_bgn(attach_name); // NOTE: BEGIN TRAN must occur after ATTACH else sqlite will throw error
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int len = sql_list.Count();
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for (int i = 0; i < len; ++i) {
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Db_exec_sql_by_attach_itm itm = (Db_exec_sql_by_attach_itm)sql_list.Get_at(i);
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usr_dlg.Plog_many("", "", itm.Msg());
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conn.Exec_sql(itm.Sql());
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}
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conn.Txn_end();
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if (diff_db) conn.Env_db_detach(attach_name);
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}
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public static Db_attach_cmd new_(Db_conn conn, String attach_name, Io_url attach_url) {return new Db_attach_cmd(conn, attach_name, attach_url);}
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}
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class Db_exec_sql_by_attach_itm {
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public Db_exec_sql_by_attach_itm(String msg, String sql) {this.msg = msg; this.sql = sql;}
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public String Msg() {return msg;} private final String msg;
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public String Sql() {return sql;} private final String sql;
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}
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