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_OBJECTSTORE_IMPL_H 17 #define DISTRIBUTED_OBJECTSTORE_IMPL_H 18 19 #include <bytes.h> 20 21 #include <shared_mutex> 22 23 #include "distributed_objectstore.h" 24 25 namespace OHOS::ObjectStore { 26 class WatcherProxy; 27 enum SyncStatus { 28 SYNC_START, 29 SYNCING, 30 SYNC_SUCCESS, 31 SYNC_FAIL, 32 }; 33 class DistributedObjectStoreImpl : public DistributedObjectStore { 34 public: 35 DistributedObjectStoreImpl(FlatObjectStore *flatObjectStore); 36 ~DistributedObjectStoreImpl() override; 37 uint32_t Get(const std::string &sessionId, DistributedObject **object) override; 38 DistributedObject *CreateObject(const std::string &sessionId) override; 39 DistributedObject *CreateObject(const std::string &sessionId, uint32_t &status) override; 40 uint32_t DeleteObject(const std::string &sessionId) override; 41 uint32_t Watch(DistributedObject *object, std::shared_ptr<ObjectWatcher> watcher) override; 42 uint32_t UnWatch(DistributedObject *object) override; 43 uint32_t SetStatusNotifier(std::shared_ptr<StatusNotifier> notifier) override; 44 void NotifyCachedStatus(const std::string &sessionId) override; 45 46 private: 47 DistributedObject *CacheObject(const std::string &sessionId, FlatObjectStore *flatObjectStore); 48 void RemoveCacheObject(const std::string &sessionId); 49 FlatObjectStore *flatObjectStore_ = nullptr; 50 std::map<DistributedObject *, std::shared_ptr<WatcherProxy>> watchers_; 51 std::shared_mutex dataMutex_ {}; 52 std::vector<DistributedObject *> objects_ {}; 53 }; 54 class StatusNotifierProxy : public StatusWatcher { 55 public: 56 virtual ~StatusNotifierProxy(); 57 StatusNotifierProxy(const std::shared_ptr<StatusNotifier> ¬ifier); 58 void OnChanged( 59 const std::string &sessionId, const std::string &networkId, const std::string &onlineStatus) override; 60 61 private: 62 std::shared_ptr<StatusNotifier> notifier; 63 }; 64 class WatcherProxy : public FlatObjectWatcher { 65 public: 66 WatcherProxy(const std::shared_ptr<ObjectWatcher> objectWatcher, const std::string &sessionId); 67 void OnChanged(const std::string &sessionid, const std::vector<std::string> &changedData) override; 68 69 private: 70 std::shared_ptr<ObjectWatcher> objectWatcher_; 71 }; 72 } // namespace OHOS::ObjectStore 73 74 #endif // DISTRIBUTED_OBJECTSTORE_H 75