1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.shardingsphere.db.protocol.mysql.packet.handshake;
19
20 import com.google.common.base.Preconditions;
21 import lombok.Getter;
22 import lombok.RequiredArgsConstructor;
23 import org.apache.shardingsphere.db.protocol.mysql.packet.MySQLPacket;
24 import org.apache.shardingsphere.db.protocol.mysql.payload.MySQLPacketPayload;
25 import org.apache.shardingsphere.infra.exception.generic.UnsupportedSQLOperationException;
26
27 /**
28 * MySQL authentication more data packet.
29 *
30 * @see <a href="https://dev.mysql.com/doc/dev/mysql-server/latest/page_protocol_connection_phase_packets_protocol_auth_more_data.html">AuthMoreData</a>
31 */
32 @RequiredArgsConstructor
33 @Getter
34 public final class MySQLAuthMoreDataPacket extends MySQLPacket {
35
36 /**
37 * Header of MySQL auth more data packet.
38 */
39 public static final int HEADER = 0x01;
40
41 private final byte[] pluginData;
42
43 public MySQLAuthMoreDataPacket(final MySQLPacketPayload payload) {
44 Preconditions.checkArgument(HEADER == payload.readInt1(), "Header of MySQL auth more data packet must be `0x01`.");
45 pluginData = payload.readStringEOFByBytes();
46 }
47
48 @Override
49 protected void write(final MySQLPacketPayload payload) {
50 throw new UnsupportedSQLOperationException("MySQLAuthMoreDataPacket.write()");
51 }
52 }