com.mysql.cj.protocol.NetworkResources Maven / Gradle / Ivy
/*
* Copyright (c) 2012, 2020, Oracle and/or its affiliates.
*
* 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.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
public class NetworkResources {
private final Socket mysqlConnection;
private final InputStream mysqlInput;
private final OutputStream mysqlOutput;
public NetworkResources(Socket mysqlConnection, InputStream mysqlInput, OutputStream mysqlOutput) {
this.mysqlConnection = mysqlConnection;
this.mysqlInput = mysqlInput;
this.mysqlOutput = mysqlOutput;
}
/**
* Forcibly closes the underlying socket to MySQL.
*/
public final void forceClose() {
try {
if (!ExportControlled.isSSLEstablished(this.mysqlConnection)) { // Fix for Bug#56979 does not apply to secure sockets.
try {
if (this.mysqlInput != null) {
this.mysqlInput.close();
}
} finally {
if (this.mysqlConnection != null && !this.mysqlConnection.isClosed() && !this.mysqlConnection.isInputShutdown()) {
try {
this.mysqlConnection.shutdownInput();
} catch (UnsupportedOperationException e) {
// Ignore, some sockets do not support this method.
}
}
}
}
} catch (IOException e) {
// Can't do anything constructive about this.
}
try {
if (!ExportControlled.isSSLEstablished(this.mysqlConnection)) { // Fix for Bug#56979 does not apply to secure sockets.
try {
if (this.mysqlOutput != null) {
this.mysqlOutput.close();
}
} finally {
if (this.mysqlConnection != null && !this.mysqlConnection.isClosed() && !this.mysqlConnection.isOutputShutdown()) {
try {
this.mysqlConnection.shutdownOutput();
} catch (UnsupportedOperationException e) {
// Ignore, some sockets do not support this method.
}
}
}
}
} catch (IOException e) {
// Can't do anything constructive about this.
}
try {
if (this.mysqlConnection != null) {
this.mysqlConnection.close();
}
} catch (IOException e) {
// Can't do anything constructive about this.
}
}
}