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 26 namespace OHOS::DistributedRdb { 27 class RdbServiceProxy : public IRemoteProxy<IRdbService> { 28 public: 29 using ObserverMapValue = std::pair<std::list<RdbStoreObserver*>, RdbSyncerParam>; 30 using ObserverMap = ConcurrentMap<std::string, ObserverMapValue>; 31 32 explicit RdbServiceProxy(const sptr<IRemoteObject>& object); 33 34 std::string ObtainDistributedTableName(const std::string& device, const std::string& table) override; 35 36 int32_t InitNotifier(const RdbSyncerParam& param); 37 int32_t InitNotifier(const RdbSyncerParam& param, const sptr<IRemoteObject> notifier) override; 38 39 int32_t SetDistributedTables(const RdbSyncerParam& param, const std::vector<std::string>& tables) override; 40 41 int32_t Sync(const RdbSyncerParam& param, const SyncOption& option, 42 const RdbPredicates& predicates, const SyncCallback& callback) override; 43 44 int32_t Subscribe(const RdbSyncerParam& param, const SubscribeOption& option, 45 RdbStoreObserver *observer) override; 46 47 int32_t UnSubscribe(const RdbSyncerParam& param, const SubscribeOption& option, 48 RdbStoreObserver *observer) override; 49 50 ObserverMap ExportObservers(); 51 52 void ImportObservers(ObserverMap& observers); 53 54 protected: 55 int32_t DoSync(const RdbSyncerParam& param, const SyncOption& option, 56 const RdbPredicates& predicates, SyncResult& result) override; 57 58 int32_t DoAsync(const RdbSyncerParam& param, uint32_t seqNum, const SyncOption& option, 59 const RdbPredicates& predicates) override; 60 61 int32_t DoSubscribe(const RdbSyncerParam& param) override; 62 63 int32_t DoUnSubscribe(const RdbSyncerParam& param) override; 64 65 private: 66 uint32_t GetSeqNum(); 67 68 int32_t DoSync(const RdbSyncerParam& param, const SyncOption& option, 69 const RdbPredicates& predicates, const SyncCallback& callback); 70 71 int32_t DoAsync(const RdbSyncerParam& param, const SyncOption& option, 72 const RdbPredicates& predicates, const SyncCallback& callback); 73 74 void OnSyncComplete(uint32_t seqNum, const SyncResult& result); 75 76 void OnDataChange(const std::string& storeName, const std::vector<std::string>& devices); 77 78 std::atomic<uint32_t> seqNum_ {}; 79 80 ConcurrentMap<uint32_t, SyncCallback> syncCallbacks_; 81 ObserverMap observers_; 82 sptr<RdbNotifierStub> notifier_; 83 84 static inline BrokerDelegator<RdbServiceProxy> delegator_; 85 }; 86 } 87 #endif 88