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 JSONREADER_H 17 #define JSONREADER_H 18 19 #include <string> 20 #include <memory> 21 22 namespace Json { 23 class Value; 24 } 25 26 class JsonReader { 27 public: 28 static std::string ReadFile(const std::string path); 29 static Json::Value ParseJsonData(const std::string jsonStr); 30 31 static std::string GetString(const Json::Value& val, const std::string& key, 32 const std::string& defaultVal = ""); 33 static bool GetBool(const Json::Value& val, const std::string& key, const bool defaultVal = false); 34 static int32_t GetInt(const Json::Value& val, const std::string& key, const int32_t defaultVal = 0); 35 static uint32_t GetUInt(const Json::Value& val, const std::string& key, const uint32_t defaultVal = 0); 36 static int64_t GetInt64(const Json::Value& val, const std::string& key, const int64_t defaultVal = 0); 37 static double GetDouble(const Json::Value& val, const std::string& key, const double defaultVal = 0.0); 38 static std::unique_ptr<Json::Value> GetObject(const Json::Value& val, const std::string& key); 39 static int32_t GetArraySize(const Json::Value& val); 40 static std::unique_ptr<Json::Value> GetArray(const Json::Value& val, const std::string& key); 41 }; 42 43 #endif // JSONREADER_H 44