1 /* 2 * Copyright (c) 2025-2025 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 OHOS_FORM_FWK_PARAM_MANAGER_H 17 #define OHOS_FORM_FWK_PARAM_MANAGER_H 18 19 #include <singleton.h> 20 #include <string> 21 22 namespace OHOS { 23 namespace AppExecFwk { 24 25 /** 26 * @class ParamManager 27 * Param manager. 28 */ 29 class ParamManager final : public DelayedRefSingleton<ParamManager> { 30 DECLARE_DELAYED_REF_SINGLETON(ParamManager) 31 public: 32 DISALLOW_COPY_AND_MOVE(ParamManager); 33 void InitParam(); 34 const std::string &GetParamStr(); 35 const std::string &GetParamVersion(); 36 37 private: 38 void ReloadParam(const std::string &versionStr, const std::string path); 39 std::string LoadVersion(); 40 std::string LoadParamStr(); 41 void SaveVersionStr(const std::string &versionStr); 42 void SaveParamStr(const std::string ¶mStr); 43 44 std::string g_paramStr; 45 std::string g_currentVersion; 46 }; 47 } // namespace AppExecFwk 48 } // namespace OHOS 49 #endif // OHOS_FORM_FWK_PARAM_MANAGER_H