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 POWERMGR_POWER_MANAGER_POWER_SETTING_HELPER_H 17 #define POWERMGR_POWER_MANAGER_POWER_SETTING_HELPER_H 18 19 #include "datashare_helper.h" 20 #include "errors.h" 21 #include "mutex" 22 #include "setting_observer.h" 23 24 namespace OHOS { 25 namespace PowerMgr { 26 class SettingProvider : public NoCopyable { 27 public: 28 static SettingProvider& GetInstance(int32_t systemAbilityId); 29 ErrCode GetStringValue(const std::string& key, std::string& value); 30 ErrCode GetIntValue(const std::string& key, int32_t& value); 31 ErrCode GetLongValue(const std::string& key, int64_t& value); 32 ErrCode GetBoolValue(const std::string& key, bool& value); 33 ErrCode PutStringValue(const std::string& key, const std::string& value, bool needNotify = true); 34 ErrCode PutIntValue(const std::string& key, int32_t value, bool needNotify = true); 35 ErrCode PutLongValue(const std::string& key, int64_t value, bool needNotify = true); 36 ErrCode PutBoolValue(const std::string& key, bool value, bool needNotify = true); 37 bool IsValidKey(const std::string& key); 38 sptr<SettingObserver> CreateObserver(const std::string& key, SettingObserver::UpdateFunc& func); 39 ErrCode RegisterObserver(const sptr<SettingObserver>& observer); 40 ErrCode UnregisterObserver(const sptr<SettingObserver>& observer); 41 42 protected: 43 ~SettingProvider() override; 44 45 private: 46 static SettingProvider* instance_; 47 static std::mutex mutex_; 48 static sptr<IRemoteObject> remoteObj_; 49 50 static void Initialize(int32_t systemAbilityId); 51 static std::shared_ptr<DataShare::DataShareHelper> CreateDataShareHelper(); 52 static bool ReleaseDataShareHelper(std::shared_ptr<DataShare::DataShareHelper>& helper); 53 static Uri AssembleUri(const std::string& key); 54 }; 55 } // namespace PowerMgr 56 } // namespace OHOS 57 #endif // POWERMGR_POWER_MANAGER_POWER_SETTING_HELPER_H 58