1 /* 2 * Copyright (c) 2023 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 PREFERENCES_UTILS_H 17 #define PREFERENCES_UTILS_H 18 19 #include <string> 20 #include <vector> 21 22 #ifdef NATIVE_PREFERENCES_ENABLE 23 #include "preferences.h" 24 #include "preferences_errno.h" 25 #endif 26 27 namespace OHOS { 28 namespace UpdateEngine { 29 class PreferencesUtil { 30 public: 31 PreferencesUtil() = default; 32 virtual ~PreferencesUtil() = default; 33 34 bool SaveString(const std::string &key, const std::string &value); 35 bool SaveInt(const std::string &key, int value); 36 bool SaveBool(const std::string &key, bool value); 37 bool SaveLong(const std::string &key, int64_t value); 38 bool SaveFloat(const std::string &key, float value); 39 40 std::string ObtainString(const std::string &key, const std::string &defValue); 41 int ObtainInt(const std::string &key, int defValue); 42 bool ObtainBool(const std::string &key, bool defValue); 43 int64_t ObtainLong(const std::string &key, int64_t defValue); 44 float ObtainFloat(const std::string &key, float defValue); 45 46 bool IsExist(const std::string &key); 47 bool Remove(const std::string &key); 48 bool RemoveAll(); 49 50 bool DeletePreference(); 51 52 protected: 53 virtual std::string GetPath() = 0; 54 55 private: 56 #ifdef NATIVE_PREFERENCES_ENABLE 57 std::shared_ptr<NativePreferences::Preferences> GetPreference(); 58 #endif 59 60 bool RefreshSync(); 61 62 template <typename T> 63 bool Save(const std::string &key, const T &value); 64 65 #ifdef NATIVE_PREFERENCES_ENABLE 66 bool SaveInner( 67 std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const std::string &value); 68 bool SaveInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const int &value); 69 bool SaveInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const bool &value); 70 bool SaveInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const int64_t &value); 71 bool SaveInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const float &value); 72 #endif 73 template <typename T> 74 T Obtain(const std::string &key, const T &defValue); 75 76 #ifdef NATIVE_PREFERENCES_ENABLE 77 std::string ObtainInner( 78 std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const std::string &defValue); 79 int ObtainInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const int &defValue); 80 bool ObtainInner(std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const bool &defValue); 81 int64_t ObtainInner( 82 std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const int64_t &defValue); 83 float ObtainInner( 84 std::shared_ptr<NativePreferences::Preferences> ptr, const std::string &key, const float &defValue); 85 #endif 86 }; 87 } // namespace UpdateEngine 88 } // namespace OHOS 89 #endif // PREFERENCES_UTILS_H