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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2015, 2017, 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.x.io;
import java.util.ArrayList;
import java.util.List;
import com.mysql.cj.api.x.io.MessageReader;
import com.mysql.cj.core.exceptions.WrongArgumentException;
import com.mysql.cj.x.core.CoreWarning;
import com.mysql.cj.x.core.StatementExecuteOk;
import com.mysql.cj.x.protobuf.MysqlxNotice.Frame;
import com.mysql.cj.x.protobuf.MysqlxNotice.SessionStateChanged;
import com.mysql.cj.x.protobuf.MysqlxNotice.Warning;
/**
* Handle state necessary to accumulate noticed and build a {@link StatementExecuteOk} response.
*/
public class StatementExecuteOkBuilder {
private long rowsAffected = 0;
private Long lastInsertId = null;
private List warnings = new ArrayList<>();
public void addNotice(Frame notice) {
if (notice.getType() == XProtocol.XProtocolNoticeFrameType_WARNING) {
// TODO: shouldn't use DevApi WarningImpl class here
this.warnings.add(new CoreWarning(MessageReader.parseNotice(notice.getPayload(), Warning.class)));
// } else if (notice.getType() == MysqlxNoticeFrameType_SESS_VAR_CHANGED) {
// // TODO: ignored for now
// throw new RuntimeException("Got a session variable changed: " + notice);
} else if (notice.getType() == XProtocol.XProtocolNoticeFrameType_SESS_STATE_CHANGED) {
SessionStateChanged changeMsg = MessageReader.parseNotice(notice.getPayload(), SessionStateChanged.class);
switch (changeMsg.getParam()) {
case GENERATED_INSERT_ID:
// TODO: handle > 2^63-1?
this.lastInsertId = changeMsg.getValue().getVUnsignedInt();
break;
case ROWS_AFFECTED:
// TODO: handle > 2^63-1?
this.rowsAffected = changeMsg.getValue().getVUnsignedInt();
break;
case PRODUCED_MESSAGE:
// TODO do something with notices. expose them to client
//System.err.println("Ignoring NOTICE message: " + msg.getValue().getVString().getValue().toStringUtf8());
break;
case CURRENT_SCHEMA:
case ACCOUNT_EXPIRED:
case ROWS_FOUND:
case ROWS_MATCHED:
case TRX_COMMITTED:
case TRX_ROLLEDBACK:
// TODO: propagate state
default:
// TODO: log warning normally instead of sysout
new WrongArgumentException("unhandled SessionStateChanged notice! " + notice).printStackTrace();
}
} else {
// TODO log error normally instead of sysout
new WrongArgumentException("Got an unknown notice: " + notice).printStackTrace();
}
}
public StatementExecuteOk build() {
return new StatementExecuteOk(this.rowsAffected, this.lastInsertId, this.warnings);
}
}