package com.l2jfrozen.util.database;
/*
* 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 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 General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.sql.Connection;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.l2jfrozen.Config;
import com.l2jfrozen.gameserver.thread.ThreadPoolManager;
import com.mchange.v2.c3p0.ComboPooledDataSource;
public class L2DatabaseFactory_c3p0 extends L2DatabaseFactory
{
static Logger _log = Logger.getLogger(L2DatabaseFactory_c3p0.class.getName());
private ComboPooledDataSource _source;
// =========================================================
// Constructor
public L2DatabaseFactory_c3p0() throws SQLException
{
try
{
if (Config.DATABASE_MAX_CONNECTIONS < 2)
{
Config.DATABASE_MAX_CONNECTIONS = 2;
_log.warning("A minimum of " + Config.DATABASE_MAX_CONNECTIONS + " db connections are required.");
}
_source = new ComboPooledDataSource();
_source.setAutoCommitOnClose(true);
_source.setInitialPoolSize(10);
_source.setMinPoolSize(10);
_source.setMaxPoolSize(Math.max(10, Config.DATABASE_MAX_CONNECTIONS));
_source.setAcquireRetryAttempts(0); // try to obtain connections indefinitely (0 = never quit)
_source.setAcquireRetryDelay(500); // 500 milliseconds wait before try to acquire connection again
_source.setCheckoutTimeout(0); // 0 = wait indefinitely for new connection
// if pool is exhausted
_source.setAcquireIncrement(5); // if pool is exhausted, get 5 more connections at a time
// cause there is a "long" delay on acquire connection
// so taking more than one connection at once will make connection pooling
// more effective.
// this "connection_test_table" is automatically created if not already there
_source.setAutomaticTestTable("connection_test_table");
_source.setTestConnectionOnCheckin(false);
// testing OnCheckin used with IdleConnectionTestPeriod is faster than testing on checkout
_source.setIdleConnectionTestPeriod(3600); // test idle connection every 60 sec
_source.setMaxIdleTime(Config.DATABASE_MAX_IDLE_TIME); // 0 = idle connections never expire
// *THANKS* to connection testing configured above
// but I prefer to disconnect all connections not used
// for more than 1 hour
// enables statement caching, there is a "semi-bug" in c3p0 0.9.0 but in 0.9.0.2 and later it's fixed
_source.setMaxStatementsPerConnection(100);
_source.setBreakAfterAcquireFailure(false); // never fail if any way possible
// setting this to true will make
// c3p0 "crash" and refuse to work
// till restart thus making acquire
// errors "FATAL" ... we don't want that
// it should be possible to recover
_source.setDriverClass(Config.DATABASE_DRIVER);
_source.setJdbcUrl(Config.DATABASE_URL);
_source.setUser(Config.DATABASE_LOGIN);
_source.setPassword(Config.DATABASE_PASSWORD);
/* Test the connection */
_source.getConnection().close();
if (Config.DEBUG)
_log.fine("Database Connection Working");
if (Config.DATABASE_DRIVER.toLowerCase().contains("microsoft"))
_providerType = ProviderType.MsSql;
else
_providerType = ProviderType.MySql;
}
catch (SQLException x)
{
if (Config.DEBUG)
_log.fine("Database Connection FAILED");
// re-throw the exception
throw x;
}
catch (Exception e)
{
if (Config.DEBUG)
_log.fine("Database Connection FAILED");
throw new SQLException("Could not init DB connection:" + e.getMessage());
}
}
@Override
public void shutdown()
{
try{
//sleep 10 seconds before the final source shutdown
Thread.sleep(10000);
}catch(Exception e){
//nothing
}
try
{
_source.close();
}
catch (Exception e)
{
e.printStackTrace();
_log.log(Level.INFO, "", e);
}
try
{
_source = null;
}
catch (Exception e)
{
e.printStackTrace();
_log.log(Level.INFO, "", e);
}
}
@Override
public Connection getConnection(boolean checkclose)
{
Connection con = null;
while(con == null && _source!=null)
{
try
{
con = _source.getConnection();
if(checkclose)
ThreadPoolManager.getInstance().scheduleGeneral(new ConnectionCloser(con, new RuntimeException()), Config.DATABASE_CONNECTION_TIMEOUT);
}
catch(SQLException e)
{
_log.severe("L2DatabaseFactory: getConnection() failed, trying again" + e);
}
}
return con;
}
@Override
public Connection getConnection(long max_connection_time)
{
Connection con = null;
while(con == null && _source!=null)
{
try
{
con = _source.getConnection();
ThreadPoolManager.getInstance().scheduleGeneral(new ConnectionCloser(con, new RuntimeException()), max_connection_time);
}
catch(SQLException e)
{
if(Config.ENABLE_ALL_EXCEPTIONS)
e.printStackTrace();
_log.severe("L2DatabaseFactory: getConnection() failed, trying again \n" + e);
}
}
return con;
}
@Override
public int getBusyConnectionCount() throws SQLException
{
return _source.getNumBusyConnectionsDefaultUser();
}
public int getIdleConnectionCount() throws SQLException
{
return _source.getNumIdleConnectionsDefaultUser();
}
}