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 DISTRIBUTEDDATA_COMMUNICATION_PROVIDER_H 17 #define DISTRIBUTEDDATA_COMMUNICATION_PROVIDER_H 18 19 #include "app_data_change_listener.h" 20 #include "app_device_status_change_listener.h" 21 namespace OHOS { 22 namespace ObjectStore { 23 class CommunicationProvider { 24 public: 25 // constructor CommunicationProvider()26 KVSTORE_API CommunicationProvider(){}; 27 28 // destructor ~CommunicationProvider()29 KVSTORE_API virtual ~CommunicationProvider(){}; 30 31 // add DeviceChangeListener to watch device change 32 KVSTORE_API 33 virtual Status StartWatchDeviceChange(const AppDeviceStatusChangeListener *observer, const PipeInfo &pipeInfo) = 0; 34 35 // stop DeviceChangeListener to watch device change 36 KVSTORE_API 37 virtual Status StopWatchDeviceChange(const AppDeviceStatusChangeListener *observer, const PipeInfo &pipeInfo) = 0; 38 39 // add DataChangeListener to watch data change 40 KVSTORE_API 41 virtual Status StartWatchDataChange(const AppDataChangeListener *observer, const PipeInfo &pipeInfo) = 0; 42 43 // stop DataChangeListener to watch data change 44 KVSTORE_API virtual Status StopWatchDataChange(const AppDataChangeListener *observer, const PipeInfo &pipeInfo) = 0; 45 46 // Send data to other device, function will be called back after sent to notify send result 47 KVSTORE_API 48 virtual Status SendData(const PipeInfo &pipeInfo, const DeviceId &deviceId, const DataInfo &DataInfo, 49 uint32_t totalLength, const MessageInfo &info = { MessageType::DEFAULT }) = 0; 50 51 // Get online deviceList 52 KVSTORE_API virtual std::vector<DeviceInfo> GetDeviceList() const = 0; 53 54 // Get local device information 55 KVSTORE_API virtual DeviceInfo GetLocalDevice() const = 0; 56 57 // start one server to listen data from other devices; 58 KVSTORE_API virtual Status Start(const PipeInfo &pipeInfo) = 0; 59 60 // stop server 61 KVSTORE_API virtual Status Stop(const PipeInfo &pipeInfo) = 0; 62 63 // user should use this method to get instance of CommunicationProvider; 64 KVSTORE_API static CommunicationProvider &GetInstance(); 65 66 // check peer device pipeInfo Process 67 KVSTORE_API virtual bool IsSameStartedOnPeer(const PipeInfo &pipeInfo, const DeviceId &peer) const = 0; 68 }; 69 } // namespace ObjectStore 70 } // namespace OHOS 71 #endif // DISTRIBUTEDDATA_COMMUNICATION_PROVIDER_H 72