1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef SCHEMA_MGR_H
17 #define SCHEMA_MGR_H
18 
19 #include <string>
20 #include <vector>
21 
22 #include "cloud/cloud_store_types.h"
23 #include "icloud_sync_storage_interface.h"
24 #include "relational_schema_object.h"
25 
26 namespace DistributedDB {
27 class SchemaMgr {
28 public:
29     explicit SchemaMgr();
30     ~SchemaMgr() =default;
31     void SetCloudDbSchema(const DataBaseSchema &schema);
32     void SetCloudDbSchema(const DataBaseSchema &schema, RelationalSchemaObject &localSchema);
33     std::shared_ptr<DataBaseSchema> GetCloudDbSchema();
34     int GetCloudTableSchema(const TableName &tableName, TableSchema &retSchema);
35     int ChkSchema(const TableName &tableName, RelationalSchemaObject &localSchema);
36     bool IsSharedTable(const std::string &tableName);
37     std::map<std::string, std::string> GetSharedTableOriginNames();
38 
39 private:
40     bool IsAssetPrimaryField(const Field &cloudField);
41     bool CompareType(const FieldInfo &localField, const Field &cloudField);
42     bool CompareNullable(const FieldInfo &localField, const Field &cloudField);
43     bool ComparePrimaryField(std::map<int, FieldName> &localPrimaryKeys, const Field &cloudField);
44     int CompareFieldSchema(std::map<int, FieldName> &primaryKeys, FieldInfoMap &localFields,
45         std::vector<Field> &cloudFields);
46     std::shared_ptr<DataBaseSchema> cloudSchema_ = nullptr;
47     std::map<std::string, bool> sharedTableMap_;
48 };
49 } // namespace DistributedDB
50 
51 #endif // SCHEMA_MGR_H