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/*
Copyright (c) 2002, 2014, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
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; version 2
of the License.
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
*/
package com.mysql.jdbc;
import java.io.IOException;
import java.net.Socket;
import java.net.SocketException;
import java.util.Properties;
/**
* Interface to allow pluggable socket creation in the driver
*/
public interface SocketFactory {
/**
* Called by the driver after issuing the MySQL protocol handshake and
* reading the results of the handshake.
*
* @throws SocketException
* if a socket error occurs
* @throws IOException
* if an I/O error occurs
*
* @return the socket to use after the handshake
*/
Socket afterHandshake() throws SocketException, IOException;
/**
* Called by the driver before issuing the MySQL protocol handshake. Should
* return the socket instance that should be used during the handshake.
*
* @throws SocketException
* if a socket error occurs
* @throws IOException
* if an I/O error occurs
*
* @return the socket to use before the handshake
*/
Socket beforeHandshake() throws SocketException, IOException;
/**
* Creates a new socket using the given properties. Properties are parsed by
* the driver from the URL. All properties other than sensitive ones (user
* and password) are passed to this method. The driver will instantiate the
* socket factory with the class name given in the property
* "socketFactory", where the standard is <code>com.mysql.jdbc.StandardSocketFactory</code> Implementing classes
* are responsible for handling synchronization of this method (if needed).
*
* @param host
* the hostname passed in the JDBC URL. It will be a single
* hostname, as the driver parses multi-hosts (for failover) and
* calls this method for each host connection attempt.
*
* @param portNumber
* the port number to connect to (if required).
*
* @param props
* properties passed to the driver via the URL and/or properties
* instance.
*
* @return a socket connected to the given host
* @throws SocketException
* if a socket error occurs
* @throws IOException
* if an I/O error occurs
*/
Socket connect(String host, int portNumber, Properties props) throws SocketException, IOException;
}