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 ASSET_OPERATION_UTILS_H
17 #define ASSET_OPERATION_UTILS_H
18 #include "cloud/cloud_store_types.h"
19 
20 namespace DistributedDB {
21 class AssetOperationUtils {
22 public:
23     enum class AssetOpType {
24         HANDLE,
25         NOT_HANDLE,
26     };
27     enum class CloudSyncAction : uint16_t {
28         START_DOWNLOAD = 0,
29         START_UPLOAD,
30         END_DOWNLOAD,
31         END_UPLOAD,
32         DEFAULT_ACTION
33     };
34     using RecordAssetOpType = std::map<std::string, std::map<std::string, AssetOperationUtils::AssetOpType>>;
35     static RecordAssetOpType CalAssetOperation(const VBucket &cacheAssets, const VBucket &dbAssets,
36         const CloudSyncAction &action);
37     static AssetOperationUtils::AssetOpType CalAssetOperation(const std::string &colName, const Asset &cacheAsset,
38         const VBucket &dbAssets, const CloudSyncAction &action);
39     static uint32_t EraseBitMask(uint32_t status);
40     static void UpdateAssetsFlag(std::vector<VBucket> &from, std::vector<VBucket> &target);
41     static void FilterDeleteAsset(VBucket &record);
42 private:
43     static void Init();
44     static AssetOperationUtils::AssetOpType DefaultOperation(const Asset &, const Assets &);
45     static AssetOperationUtils::AssetOpType CheckBeforeDownload(const Asset &cacheAsset, const Assets &dbAssets);
46     static AssetOperationUtils::AssetOpType CheckAfterDownload(const Asset &cacheAsset, const Assets &dbAssets);
47     static AssetOperationUtils::AssetOpType CheckWithDownload(bool before, const Asset &cacheAsset,
48         const Assets &dbAssets);
49     static AssetOperationUtils::AssetOpType CheckAfterUpload(const Asset &cacheAsset, const Assets &dbAssets);
50     static AssetOperationUtils::AssetOpType HandleIfExistAndSameStatus(const Asset &cacheAsset, const Assets &dbAssets);
51     static Assets GetAssets(const std::string &colName, const VBucket &rowData);
52     static void MergeAssetFlag(const Assets &from, Asset &target);
53     static void MergeAssetsFlag(const Assets &from, Type &target);
54     static constexpr uint32_t BIT_MASK_COUNT = 16;
55 };
56 }
57 #endif // ASSET_OPERATION_UTILS_H
58