1 | /** |
2 | * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
5 | * you may not use this file except in compliance with the License. |
6 | * You may obtain a copy of the License at |
7 | * |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * |
10 | * Unless required by applicable law or agreed to in writing, software |
11 | * distributed under the License is distributed on an "AS IS" BASIS, |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
13 | * See the License for the specific language governing permissions and |
14 | * limitations under the License. |
15 | |
16 | * \author Dianzhang.Chen |
17 | * \date Mar 2021 |
18 | * \brief Interface of lsn context format |
19 | */ |
20 | |
21 | #pragma once |
22 | |
23 | #include "common_types.h" |
24 | |
25 | namespace proxima { |
26 | namespace be { |
27 | namespace repository { |
28 | |
29 | /*! Lsn Context Format |
30 | */ |
31 | class LsnContextFormat { |
32 | public: |
33 | //! Constructor |
34 | LsnContextFormat() = default; |
35 | |
36 | //! Constructor |
37 | LsnContextFormat(const std::string &name, uint64_t pos, uint64_t id, |
38 | const ScanMode &scan_mode) |
39 | : file_name_(name), position_(pos), seq_id_(id), mode_(scan_mode) {} |
40 | |
41 | //! Destructor |
42 | ~LsnContextFormat() = default; |
43 | |
44 | //! Copy constructor |
45 | LsnContextFormat(const LsnContextFormat &); |
46 | |
47 | //! Assignment constructor |
48 | LsnContextFormat &operator=(const LsnContextFormat &); |
49 | |
50 | //! Parse lsn context from string |
51 | int parse_from_string(const std::string &lsn_context); |
52 | |
53 | //! Convert lsn context store to string |
54 | std::string convert_to_string() const; |
55 | |
56 | //! Get binlog file name |
57 | const std::string &file_name() const; |
58 | |
59 | //! Get binlog position |
60 | uint64_t position() const; |
61 | |
62 | //! Get sequence id |
63 | uint64_t seq_id() const; |
64 | |
65 | //! Get scan mode |
66 | const ScanMode &mode() const; |
67 | |
68 | private: |
69 | std::string file_name_{}; |
70 | uint64_t position_{0}; |
71 | uint64_t seq_id_{0}; |
72 | ScanMode mode_{ScanMode::FULL}; |
73 | }; |
74 | |
75 | } // end namespace repository |
76 | } // namespace be |
77 | } // end namespace proxima |
78 | |