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 DATASHARESERVICE_RDB_DELEGATE_H 17 #define DATASHARESERVICE_RDB_DELEGATE_H 18 19 #include <mutex> 20 #include <string> 21 22 #include "concurrent_map.h" 23 #include "db_delegate.h" 24 #include "rdb_errno.h" 25 #include "rdb_helper.h" 26 #include "rdb_store.h" 27 #include "utils.h" 28 #include "rdb_utils.h" 29 30 namespace OHOS::DataShare { 31 using namespace OHOS::NativeRdb; 32 class RdbDelegate final : public DBDelegate { 33 public: 34 explicit RdbDelegate(); 35 ~RdbDelegate(); 36 bool Init(const DistributedData::StoreMetaData &meta, int version, 37 bool registerFunction, const std::string &extUri, const std::string &backup) override; 38 std::pair<int, std::shared_ptr<DataShareResultSet>> Query(const std::string &tableName, 39 const DataSharePredicates &predicates, const std::vector<std::string> &columns, 40 int32_t callingPid, uint32_t callingTokenId) override; 41 std::string Query(const std::string &sql, const std::vector<std::string> &selectionArgs) override; 42 std::shared_ptr<NativeRdb::ResultSet> QuerySql(const std::string &sql) override; 43 std::pair<int, int64_t> UpdateSql(const std::string &sql) override; 44 bool IsInvalid() override; 45 std::pair<int64_t, int64_t> InsertEx(const std::string &tableName, 46 const DataShareValuesBucket &valuesBucket) override; 47 std::pair<int64_t, int64_t> UpdateEx(const std::string &tableName, 48 const DataSharePredicates &predicate, const DataShareValuesBucket &valuesBucket) override; 49 std::pair<int64_t, int64_t> DeleteEx(const std::string &tableName, 50 const DataSharePredicates &predicate) override; 51 private: 52 void TryAndSend(int errCode); 53 std::pair<int, RdbStoreConfig> GetConfig(const DistributedData::StoreMetaData &meta, bool registerFunction); 54 bool IsLimit(int count, int32_t callingPid, uint32_t callingTokenId); 55 static std::atomic<int32_t> resultSetCount; 56 static ConcurrentMap<uint32_t, int32_t> resultSetCallingPids; 57 static constexpr std::chrono::milliseconds WAIT_TIME = std::chrono::milliseconds(50); 58 std::shared_ptr<RdbStore> store_; 59 int errCode_ = E_OK; 60 static constexpr int RETRY = 3; 61 static constexpr const char *DUAL_WRITE = "dualWrite"; 62 static constexpr const char *PERIODIC = "periodic"; 63 uint32_t tokenId_ = 0; 64 std::string bundleName_ = ""; 65 std::string storeName_ = ""; 66 int32_t haMode_ = 0; 67 std::string extUri_ = ""; 68 std::string backup_ = ""; 69 std::string user_ = ""; 70 std::mutex initMutex_; 71 bool isInited_ = false; 72 }; 73 class DefaultOpenCallback : public RdbOpenCallback { 74 public: OnCreate(RdbStore & rdbStore)75 int OnCreate(RdbStore &rdbStore) override 76 { 77 return E_OK; 78 } OnUpgrade(RdbStore & rdbStore,int oldVersion,int newVersion)79 int OnUpgrade(RdbStore &rdbStore, int oldVersion, int newVersion) override 80 { 81 return E_OK; 82 } 83 }; 84 } // namespace OHOS::DataShare 85 #endif // DATASHARESERVICE_RDB_DELEGATE_H 86