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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.data.pipeline.mysql.ingest.binlog;
19  
20  import lombok.Getter;
21  import lombok.RequiredArgsConstructor;
22  import lombok.Setter;
23  import org.apache.shardingsphere.db.protocol.mysql.packet.binlog.row.MySQLBinlogTableMapEventPacket;
24  import org.apache.shardingsphere.db.protocol.mysql.packet.binlog.row.column.MySQLBinlogColumnDef;
25  
26  import java.util.List;
27  import java.util.Map;
28  
29  /**
30   * Binlog context.
31   */
32  @Getter
33  @RequiredArgsConstructor
34  public final class BinlogContext {
35      
36      @Setter
37      private volatile String fileName;
38      
39      private final int checksumLength;
40      
41      private final Map<Long, MySQLBinlogTableMapEventPacket> tableMap;
42      
43      /**
44       * Cache table map event.
45       *
46       * @param tableId table id
47       * @param tableMapEventPacket table map event
48       */
49      public void putTableMapEvent(final long tableId, final MySQLBinlogTableMapEventPacket tableMapEventPacket) {
50          tableMap.put(tableId, tableMapEventPacket);
51      }
52      
53      /**
54       * Get table map event by table id.
55       *
56       * @param tableId table id
57       * @return table map event
58       */
59      public MySQLBinlogTableMapEventPacket getTableMapEvent(final long tableId) {
60          return tableMap.get(tableId);
61      }
62      
63      /**
64       * Get table name by table id.
65       *
66       * @param tableId table id
67       * @return table name
68       */
69      public String getTableName(final long tableId) {
70          return tableMap.get(tableId).getTableName();
71      }
72      
73      /**
74       * Get database name by table id.
75       *
76       * @param tableId table id
77       * @return database name
78       */
79      public String getDatabaseName(final long tableId) {
80          return tableMap.get(tableId).getSchemaName();
81      }
82      
83      /**
84       * Get column defined by table id.
85       *
86       * @param tableId table id
87       * @return MySQL binlog column definitions
88       */
89      public List<MySQLBinlogColumnDef> getColumnDefs(final long tableId) {
90          return tableMap.get(tableId).getColumnDefs();
91      }
92  }