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#include <vector> 22#include <unordered_map> 23#include <variant> 24#include <optional> 25 26struct cJSON; 27 28namespace Json2 { 29 class Value { 30 public: 31 Value() = default; 32 explicit Value(cJSON* object); 33 Value(cJSON* object, bool isRoot); 34 ~Value(); 35 // 重载实现obj["key"]形式调用 36 Value operator[](const char* key); 37 const Value operator[](const char* key) const; 38 Value operator[](const std::string& key); 39 const Value operator[](const std::string& key) const; 40 // 获取所有成员键值 41 using Members = std::vector<std::string>; 42 Value::Members GetMemberNames() const; 43 // convert string functions 44 std::string ToString() const; 45 std::string ToStyledString() const; 46 const cJSON* GetJsonPtr() const; 47 // check functions 48 bool IsNull() const; 49 bool IsValid() const; 50 bool IsNumber() const; 51 bool IsInt() const; 52 bool IsUInt() const; 53 bool IsInt64() const; 54 bool IsUInt64() const; 55 bool IsDouble() const; 56 bool IsBool() const; 57 bool IsString() const; 58 bool IsObject() const; 59 bool IsArray() const; 60 bool IsMember(const char* key) const; 61 // get functions 62 int32_t GetInt(const char* key, int32_t defaultVal = 0) const; 63 uint32_t GetUInt(const char* key, int32_t defaultVal = 0) const; 64 int64_t GetInt64(const char* key, int32_t defaultVal = 0) const; 65 float GetFloat(const char* key, float defaultVal = 0.0) const; 66 double GetDouble(const char* key, double defaultVal = 0.0) const; 67 bool GetBool(const char* key, bool defaultVal = false) const; 68 std::string GetString(const char* key, const std::string defaultVal = "") const; 69 Value GetValue(const char* key) const; 70 int32_t AsInt() const; 71 uint32_t AsUInt() const; 72 int64_t AsInt64() const; 73 float AsFloat() const; 74 double AsDouble() const; 75 bool AsBool() const; 76 std::string AsString() const; 77 // add functions for obj 78 bool Add(const char* key, const char* value); 79 bool Add(const char* key, bool value); 80 bool Add(const char* key, int32_t value); 81 bool Add(const char* key, uint32_t value); 82 bool Add(const char* key, int64_t value); 83 bool Add(const char* key, double value); 84 bool Add(const char* key, const Value& value); 85 // add functions for array 86 bool Add(const char* value); 87 bool Add(bool value); 88 bool Add(int32_t value); 89 bool Add(uint32_t value); 90 bool Add(int64_t value); 91 bool Add(double value); 92 bool Add(const Value& value); 93 // replace functions for obj 94 bool Replace(const char* key, bool value); 95 bool Replace(const char* key, int32_t value); 96 bool Replace(const char* key, uint32_t value); 97 bool Replace(const char* key, int64_t value); 98 bool Replace(const char* key, double value); 99 bool Replace(const char* key, const char* value); 100 bool Replace(const char* key, const Value& value); 101 // replace functions for array 102 bool Replace(int index, bool value); 103 bool Replace(int index, int32_t value); 104 bool Replace(int index, uint32_t value); 105 bool Replace(int index, int64_t value); 106 bool Replace(int index, double value); 107 bool Replace(int index, const char* value); 108 bool Replace(int index, const Value& value); 109 // array functions 110 uint32_t GetArraySize() const; 111 Value GetArrayItem(int32_t index) const; 112 // empty object 113 void Clear(); 114 std::string GetKey(); 115 116 private: 117 cJSON* jsonPtr = nullptr; 118 bool rootNode = true; 119 }; 120} 121 122class JsonReader { 123public: 124 static std::string ReadFile(const std::string& path); 125 static Json2::Value ParseJsonData2(const std::string& jsonStr); 126 static std::string GetErrorPtr(); 127 static Json2::Value CreateObject(); 128 static Json2::Value CreateArray(); 129 static Json2::Value CreateBool(const bool value); 130 static Json2::Value CreateString(const std::string& value); 131 static Json2::Value DepthCopy(const Json2::Value& value); 132 static Json2::Value CreateNull(); 133}; 134 135#endif // JSONREADER_H 136