1 /* 2 * Copyright (c) 2022 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 DISTRIBUTED_RDB_SERVICE_PROXY_H 17 #define DISTRIBUTED_RDB_SERVICE_PROXY_H 18 19 #include <atomic> 20 #include <list> 21 #include <iremote_proxy.h> 22 #include "irdb_service.h" 23 #include "rdb_notifier.h" 24 #include "concurrent_map.h" 25 #include "visibility.h" 26 27 namespace OHOS::DistributedRdb { 28 class API_EXPORT RdbServiceProxy : public IRemoteProxy<IRdbService> { 29 public: 30 using ObserverMapValue = std::pair<std::list<RdbStoreObserver*>, RdbSyncerParam>; 31 using ObserverMap = ConcurrentMap<std::string, ObserverMapValue>; 32 33 explicit RdbServiceProxy(const sptr<IRemoteObject>& object); 34 35 std::string ObtainDistributedTableName(const std::string& device, const std::string& table) override; 36 37 int32_t InitNotifier(const RdbSyncerParam& param); 38 int32_t InitNotifier(const RdbSyncerParam& param, const sptr<IRemoteObject> notifier) override; 39 40 int32_t SetDistributedTables(const RdbSyncerParam& param, const std::vector<std::string>& tables) override; 41 42 int32_t Sync(const RdbSyncerParam& param, const SyncOption& option, 43 const RdbPredicates& predicates, const SyncCallback& callback) override; 44 45 int32_t Subscribe(const RdbSyncerParam& param, const SubscribeOption& option, 46 RdbStoreObserver *observer) override; 47 48 int32_t UnSubscribe(const RdbSyncerParam& param, const SubscribeOption& option, 49 RdbStoreObserver *observer) override; 50 int32_t RemoteQuery(const RdbSyncerParam& param, const std::string& device, const std::string& sql, 51 const std::vector<std::string>& selectionArgs, sptr<IRemoteObject>& resultSet) override; 52 53 int32_t CreateRDBTable( 54 const RdbSyncerParam ¶m, const std::string &writePermission, const std::string &readPermission) override; 55 int32_t DestroyRDBTable(const RdbSyncerParam ¶m) override; 56 ObserverMap ExportObservers(); 57 58 void ImportObservers(ObserverMap& observers); 59 60 protected: 61 int32_t DoSync(const RdbSyncerParam& param, const SyncOption& option, 62 const RdbPredicates& predicates, SyncResult& result) override; 63 64 int32_t DoAsync(const RdbSyncerParam& param, uint32_t seqNum, const SyncOption& option, 65 const RdbPredicates& predicates) override; 66 67 int32_t DoSubscribe(const RdbSyncerParam& param) override; 68 69 int32_t DoUnSubscribe(const RdbSyncerParam& param) override; 70 71 private: 72 uint32_t GetSeqNum(); 73 74 int32_t DoSync(const RdbSyncerParam& param, const SyncOption& option, 75 const RdbPredicates& predicates, const SyncCallback& callback); 76 77 int32_t DoAsync(const RdbSyncerParam& param, const SyncOption& option, 78 const RdbPredicates& predicates, const SyncCallback& callback); 79 80 void OnSyncComplete(uint32_t seqNum, const SyncResult& result); 81 82 void OnDataChange(const std::string& storeName, const std::vector<std::string>& devices); 83 84 std::string RemoveSuffix(const std::string& name); 85 86 std::atomic<uint32_t> seqNum_ {}; 87 88 ConcurrentMap<uint32_t, SyncCallback> syncCallbacks_; 89 ObserverMap observers_; 90 sptr<RdbNotifierStub> notifier_; 91 92 static inline BrokerDelegator<RdbServiceProxy> delegator_; 93 }; 94 } // namespace OHOS::DistributedRdb 95 #endif 96