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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* 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, version 2.0,
* 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.cj.protocol;
import java.io.Closeable;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.AsynchronousSocketChannel;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import com.mysql.cj.conf.PropertySet;
import com.mysql.cj.exceptions.CJCommunicationsException;
public class AsyncSocketFactory implements SocketFactory {
AsynchronousSocketChannel channel;
@SuppressWarnings("unchecked")
@Override
public T connect(String host, int port, PropertySet props, int loginTimeout) throws IOException {
try {
this.channel = AsynchronousSocketChannel.open();
//channel.setOption(java.net.StandardSocketOptions.TCP_NODELAY, true);
this.channel.setOption(java.net.StandardSocketOptions.SO_SNDBUF, 128 * 1024);
this.channel.setOption(java.net.StandardSocketOptions.SO_RCVBUF, 128 * 1024);
Future connectPromise = this.channel.connect(new InetSocketAddress(host, port));
connectPromise.get();
} catch (CJCommunicationsException e) {
throw e;
} catch (IOException | InterruptedException | ExecutionException | RuntimeException ex) {
throw new CJCommunicationsException(ex);
}
return (T) this.channel;
}
@SuppressWarnings("unchecked")
@Override
public T performTlsHandshake(SocketConnection socketConnection, ServerSession serverSession) throws IOException {
this.channel = ExportControlled.startTlsOnAsynchronousChannel(this.channel, socketConnection);
return (T) this.channel;
}
}