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 DOCUMENT_STORE_H 17 #define DOCUMENT_STORE_H 18 19 #include <map> 20 #include <mutex> 21 #include <string> 22 23 #include "collection.h" 24 #include "document_type.h" 25 #include "kv_store_executor.h" 26 27 struct GRD_ResultSet; 28 namespace DocumentDB { 29 class DocumentStore { 30 public: 31 DocumentStore(KvStoreExecutor *); 32 ~DocumentStore(); 33 34 int CreateCollection(const std::string &name, const std::string &option, uint32_t flags); 35 36 int DropCollection(const std::string &name, uint32_t flags); 37 38 int UpdateDocument(const std::string &collection, const std::string &filter, const std::string &update, 39 uint32_t flags); 40 41 int UpsertDocument(const std::string &collection, const std::string &filter, const std::string &document, 42 uint32_t flags); 43 44 int InsertDocument(const std::string &collection, const std::string &document, uint32_t flags); 45 46 int DeleteDocument(const std::string &collection, const std::string &filter, uint32_t flags); 47 48 int FindDocument(const std::string &collection, const std::string &filter, const std::string &projection, 49 uint32_t flags, GRD_ResultSet *grdResultSet); 50 51 Collection GetCollection(std::string &collectionName); 52 53 bool IsExistResultSet(const std::string &collection); 54 55 int EraseCollection(const std::string &collectionName); 56 57 void OnClose(const std::function<void(void)> ¬ifier); 58 59 int Close(uint32_t flags); 60 61 int StartTransaction(); 62 int Commit(); 63 int Rollback(); 64 65 bool IsCollectionExists(const std::string &collectionName, int &errCode); 66 67 std::mutex dbMutex_; 68 69 private: 70 int UpdateDataIntoDB(std::shared_ptr<QueryContext> &context, JsonObject &filterObj, const std::string &update, 71 bool &isReplace); 72 int UpsertDataIntoDB(std::shared_ptr<QueryContext> &context, JsonObject &filterObj, const std::string &document, 73 JsonObject &documentObj, bool &isReplace); 74 int InsertDataIntoDB(const std::string &collection, const std::string &document, JsonObject &documentObj, 75 bool &isIdExist); 76 int DeleteDataFromDB(std::shared_ptr<QueryContext> &context, JsonObject &filterObj); 77 int InitFindResultSet(GRD_ResultSet *grdResultSet, std::shared_ptr<QueryContext> &context); 78 KvStoreExecutor *executor_ = nullptr; 79 std::map<std::string, Collection *> collections_; 80 std::function<void(void)> closeNotifier_; 81 }; 82 } // namespace DocumentDB 83 #endif // DOCUMENT_STORE_H