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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2011 David Shrewsbury
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <plugin/slave/replication_schema.h>
#include <drizzled/execute.h>
#include <drizzled/sql/result_set.h>
#include <string>
#include <vector>
#include <boost/lexical_cast.hpp>
using namespace std;
using namespace drizzled;
using namespace boost;
namespace slave
{
bool ReplicationSchema::create()
{
vector<string> sql;
sql.push_back("COMMIT");
sql.push_back("CREATE SCHEMA IF NOT EXISTS `sys_replication` REPLICATE=FALSE");
if (not executeSQL(sql))
return false;
/*
* Create our IO thread state information table if we need to.
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`io_state` ("
" `status` VARCHAR(20) NOT NULL,"
" `error_msg` VARCHAR(250))"
" COMMENT = 'VERSION 1.0'");
if (not executeSQL(sql))
return false;
sql.clear();
sql.push_back("SELECT COUNT(*) FROM `sys_replication`.`io_state`");
{
sql::ResultSet result_set(1);
Execute execute(*(_session.get()), true);
execute.run(sql[0], result_set);
result_set.next();
string count= result_set.getString(0);
/* Must always be at least one row in the table */
if (count == "0")
{
sql.clear();
sql.push_back("INSERT INTO `sys_replication`.`io_state` (`status`)"
" VALUES ('STOPPED')");
if (not executeSQL(sql))
return false;
}
}
/*
* Create our applier thread state information table if we need to.
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`applier_state`"
" (`last_applied_commit_id` BIGINT NOT NULL PRIMARY KEY,"
" `status` VARCHAR(20) NOT NULL,"
" `error_msg` VARCHAR(250))"
" COMMENT = 'VERSION 1.0'");
if (not executeSQL(sql))
return false;
sql.clear();
sql.push_back("SELECT COUNT(*) FROM `sys_replication`.`applier_state`");
{
sql::ResultSet result_set(1);
Execute execute(*(_session.get()), true);
execute.run(sql[0], result_set);
result_set.next();
string count= result_set.getString(0);
/* Must always be at least one row in the table */
if (count == "0")
{
sql.clear();
sql.push_back("INSERT INTO `sys_replication`.`applier_state`"
" (`last_applied_commit_id`, `status`)"
" VALUES (0, 'STOPPED')");
if (not executeSQL(sql))
return false;
}
}
/*
* Create our message queue table if we need to.
*/
sql.clear();
sql.push_back("COMMIT");
sql.push_back("CREATE TABLE IF NOT EXISTS `sys_replication`.`queue`"
" (`trx_id` BIGINT NOT NULL, `seg_id` INT NOT NULL,"
" `commit_order` BIGINT, `msg` BLOB,"
" PRIMARY KEY(`trx_id`, `seg_id`))"
" COMMENT = 'VERSION 1.0'");
if (not executeSQL(sql))
return false;
return true;
}
bool ReplicationSchema::setInitialMaxCommitId(uint64_t value)
{
vector<string> sql;
sql.push_back("UPDATE `sys_replication`.`applier_state`"
" SET `last_applied_commit_id` = "
+ lexical_cast<string>(value));
return executeSQL(sql);
}
} /* namespace slave */
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