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#pragma once
#include <rapidjson/document.h>
#include <cstring>
#include <string>
#include <string_view>
#define BRUSSEL_JSON_GET(object, name, type, out, failAction) \
{ \
auto it = (object).FindMember(name); \
if (it == (object).MemberEnd()) failAction; \
auto& value = it->value; \
if (!value.Is<type>()) failAction; \
(out) = value.Get<type>(); \
}
#define BRUSSEL_JSON_GET_DEFAULT(object, name, type, out, theDefault) \
do { \
auto it = (object).FindMember(name); \
if (it == (object).MemberEnd()) { \
(out) = theDefault; \
break; \
} \
auto& value = it->value; \
if (!value.Is<type>()) { \
(out) = theDefault; \
break; \
} \
(out) = value.Get<type>(); \
} while (0);
namespace rapidjson {
inline const Value* GetProperty(const Value& value, std::string_view name) {
for (auto it = value.MemberBegin(); it != value.MemberEnd(); ++it) {
if (it->name.GetStringLength() != name.size()) continue;
if (std::memcmp(it->name.GetString(), name.data(), name.size())) continue;
return &it->value;
}
return nullptr;
}
inline const Value* GetProperty(const Value& value, Type type, std::string_view name) {
for (auto it = value.MemberBegin(); it != value.MemberEnd(); ++it) {
if (it->name.GetStringLength() != name.size()) continue;
if (it->value.GetType() != type) continue;
if (std::memcmp(it->name.GetString(), name.data(), name.size())) continue;
return &it->value;
}
return nullptr;
}
inline std::string_view AsStringView(const Value& value) {
return std::string_view(value.GetString(), value.GetStringLength());
}
inline std::string_view AsStringView(const GenericStringRef<char>& strRef) {
return std::string_view(strRef.s, strRef.length);
}
inline std::string AsString(const Value& value) {
return std::string(value.GetString(), value.GetStringLength());
}
inline std::string AsString(const GenericStringRef<char>& strRef) {
return std::string(strRef.s, strRef.length);
}
// RapidJson itself already provides std::string and const char* overloads
inline GenericStringRef<char> StringRef(std::string_view str) {
return GenericStringRef<char>(
str.data() ? str.data() : "",
str.size());
}
template <class TIter, class TSentienl>
rapidjson::Value WriteVectorPrimitives(rapidjson::Document& root, TIter begin, TSentienl end) {
using TElement = typename TIter::value_type;
rapidjson::Value list;
while (begin != end) {
if constexpr (std::is_same_v<TElement, std::string>) {
auto& elm = *begin;
list.PushBack(rapidjson::Value(elm.c_str(), elm.size()), root.GetAllocator());
} else {
list.PushBack(*begin, root.GetAllocator());
}
++begin;
}
return list;
}
template <class TContainer>
bool ReadVectorPrimitives(const rapidjson::Value& value, TContainer& list) {
using TElement = typename TContainer::value_type;
if (!value.IsArray()) return false;
list.reserve(value.Size());
for (auto& elm : value.GetArray()) {
if (!elm.Is<TElement>()) return {};
list.push_back(elm.Get<TElement>());
}
return true;
}
} // namespace rapidjson
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