拆分核心库和服务

This commit is contained in:
2026-08-07 09:25:55 +08:00
parent 6fb1bbed61
commit bba2895e2b
101 changed files with 1915 additions and 985 deletions
@@ -0,0 +1,94 @@
#pragma once
#include "adminive/adapter.hpp"
#include <boost/pfr.hpp>
#if __has_include(<boost/pfr/core_name.hpp>)
#include <boost/pfr/core_name.hpp>
#define ADMINIVE_BOOST_PFR_HAS_NAMES 1
#else
#define ADMINIVE_BOOST_PFR_HAS_NAMES 0
#endif
#include <cstddef>
#include <string_view>
#include <type_traits>
namespace adminive {
template <class T>
struct Boost_Pfr_Name_Adapter;
namespace detail {
template <class T, std::size_t Index>
constexpr std::string_view pfr_name() noexcept {
#if ADMINIVE_BOOST_PFR_HAS_NAMES
return boost::pfr::get_name<Index, T>();
#else
return Boost_Pfr_Name_Adapter<T>::template name<Index>();
#endif
}
template <std::size_t Index, class Derived, class Base, class... Bases>
decltype(auto) pfr_base_get(Derived& value) noexcept {
constexpr std::size_t count = boost::pfr::tuple_size_v<Base>;
if constexpr(Index < count) {
return boost::pfr::get<Index>(static_cast<Base&>(value));
} else {
static_assert(sizeof...(Bases) != 0);
return pfr_base_get<Index - count, Derived, Bases...>(value);
}
}
template <std::size_t Index, class Derived, class Base, class... Bases>
decltype(auto) pfr_base_get(const Derived& value) noexcept {
constexpr std::size_t count = boost::pfr::tuple_size_v<Base>;
if constexpr(Index < count) {
return boost::pfr::get<Index>(static_cast<const Base&>(value));
} else {
static_assert(sizeof...(Bases) != 0);
return pfr_base_get<Index - count, Derived, Bases...>(value);
}
}
template <std::size_t Index, class Base, class... Bases>
constexpr std::string_view pfr_base_name() noexcept {
constexpr std::size_t count = boost::pfr::tuple_size_v<Base>;
if constexpr(Index < count) {
return pfr_name<Base, Index>();
} else {
static_assert(sizeof...(Bases) != 0);
return pfr_base_name<Index - count, Bases...>();
}
}
}
template <class T>
struct Boost_Pfr_Reflection_Adapter {
static constexpr std::size_t field_count = boost::pfr::tuple_size_v<T>;
template <std::size_t Index>
static decltype(auto) get(T& value) noexcept {
return boost::pfr::get<Index>(value);
}
template <std::size_t Index>
static decltype(auto) get(const T& value) noexcept {
return boost::pfr::get<Index>(value);
}
template <std::size_t Index>
static constexpr std::string_view name() noexcept {
return detail::pfr_name<T, Index>();
}
};
template <class Derived, class... Bases>
struct Boost_Pfr_Base_Reflection_Adapter {
static_assert(sizeof...(Bases) != 0);
static_assert((std::is_base_of_v<Bases, Derived> && ...));
static constexpr std::size_t field_count = (boost::pfr::tuple_size_v<Bases> + ... + 0);
template <std::size_t Index>
static decltype(auto) get(Derived& value) noexcept {
static_assert(Index < field_count);
return detail::pfr_base_get<Index, Derived, Bases...>(value);
}
template <std::size_t Index>
static decltype(auto) get(const Derived& value) noexcept {
static_assert(Index < field_count);
return detail::pfr_base_get<Index, Derived, Bases...>(value);
}
template <std::size_t Index>
static constexpr std::string_view name() noexcept {
static_assert(Index < field_count);
return detail::pfr_base_name<Index, Bases...>();
}
};
}
#undef ADMINIVE_BOOST_PFR_HAS_NAMES
@@ -0,0 +1,267 @@
#pragma once
#include "adminive/collection.hpp"
#include "adminive/http.hpp"
#include <drogon/drogon.h>
#include <charconv>
#include <cstdint>
#include <functional>
#include <memory>
#include <shared_mutex>
#include <string>
#include <utility>
#include <vector>
namespace adminive {
template <Json_Type Json>
drogon::HttpResponsePtr make_drogon_response(Http_Response<Json> value) {
auto response = drogon::HttpResponse::newHttpResponse();
response->setStatusCode(static_cast<drogon::HttpStatusCode>(value.status));
response->setContentTypeCode(drogon::CT_APPLICATION_JSON);
response->setBody(dump_json(value.body, 2));
return response;
}
using Drogon_Executor = std::function<void(std::function<void()>)>;
using Drogon_Request_Context_Factory = std::function<Request_Context(const drogon::HttpRequestPtr&)>;
struct Drogon_Bind_Options {
Drogon_Executor executor;
Drogon_Request_Context_Factory context_factory;
std::vector<std::string> filters;
};
inline Request_Context make_drogon_request_context(const drogon::HttpRequestPtr& request, const Drogon_Request_Context_Factory& factory) {
return factory ? factory(request) : Request_Context{};
}
inline std::vector<drogon::internal::HttpConstraint> make_drogon_constraints(drogon::HttpMethod method, const std::vector<std::string>& filters) {
std::vector<drogon::internal::HttpConstraint> result;
result.reserve(filters.size() + 1);
result.emplace_back(method);
for(const auto& filter : filters) {
result.emplace_back(filter);
}
return result;
}
inline std::size_t read_drogon_size_parameter(const drogon::HttpRequestPtr& request, const char* name, std::size_t fallback) {
const std::string& text = request->getParameter(name);
if(text.empty()) {
return fallback;
}
std::size_t value{};
const auto [end, error] = std::from_chars(text.data(), text.data() + text.size(), value);
return error == std::errc{} && end == text.data() + text.size() && value != 0 ? value : fallback;
}
template <Json_Type Json, class Function>
void complete_drogon_request(std::function<void(const drogon::HttpResponsePtr&)>& callback, Function&& function) noexcept {
try {
callback(make_drogon_response(std::forward<Function>(function)()));
} catch(const std::exception& error) {
callback(make_drogon_response(make_http_error<Json>(500, error.what())));
} catch(...) {
callback(make_drogon_response(make_http_error<Json>(500, "unknown server error")));
}
}
template <Json_Type Json, class Function>
void schedule_drogon_request(const Drogon_Executor& executor, std::function<void(const drogon::HttpResponsePtr&)>&& callback, Function&& function) noexcept {
auto response_callback = std::make_shared<std::function<void(const drogon::HttpResponsePtr&)>>(std::move(callback));
std::function<void()> task = [response_callback, function = std::forward<Function>(function)]() mutable {
complete_drogon_request<Json>(*response_callback, std::move(function));
};
try {
if(executor) {
executor(task);
} else {
task();
}
} catch(const std::exception& error) {
(*response_callback)(make_drogon_response(make_http_error<Json>(500, error.what())));
} catch(...) {
(*response_callback)(make_drogon_response(make_http_error<Json>(500, "failed to schedule request")));
}
}
template <class T, Json_Type Json, Basic_Lock Lock = std::shared_mutex>
requires Writable_Adapted_Object<T> && std::copy_constructible<Object_Model_Type<T>>
class Drogon_Resource {
public:
using Service = Resource_Service<T, Json, Lock>;
using Transaction = typename Service::Transaction;
Drogon_Resource(T& value, std::string path, Transaction transaction = {}, Lock* shared_lock = nullptr) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction), shared_lock)) {}
template <Basic_Lock Field_Lock>
explicit Drogon_Resource(Synchronized_Value<std::remove_cvref_t<T>, Lock, Field_Lock>& value, std::string path, Transaction transaction = {}) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction))) {}
template <class Root, Basic_Lock Field_Lock, auto... Members>
requires (!std::is_const_v<Root>) && std::same_as<typename Synchronized_Field<Root, Lock, Field_Lock, Members...>::value_type, std::remove_cvref_t<T>>
explicit Drogon_Resource(Synchronized_Field<Root, Lock, Field_Lock, Members...> value, std::string path, Transaction transaction = {}, Resource_Lock_Scope lock_scope = Resource_Lock_Scope::local) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction), lock_scope)) {}
Json amis_schema() const {
return service_->amis_schema();
}
void bind(drogon::HttpAppFramework& app, Drogon_Bind_Options options = {}) const {
const auto service = service_;
const auto get_constraints = make_drogon_constraints(drogon::Get, options.filters);
const auto post_constraints = make_drogon_constraints(drogon::Post, options.filters);
app.registerHandler(service->path() + "/descriptor", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->descriptor_response();
});
}, get_constraints);
app.registerHandler(service->path() + "/data", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->data_response();
});
}, get_constraints);
app.registerHandler(service->path() + "/amis", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->amis_response();
});
}, get_constraints);
app.registerHandler(service->path() + "/data", [service, options](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
Request_Context context;
try {
context = make_drogon_request_context(request, options.context_factory);
} catch(const std::exception& error) {
callback(make_drogon_response(make_http_error<Json>(500, error.what())));
return;
}
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, body = std::string(request->getBody()), context] {
return service->update_response(body, context);
});
}, post_constraints);
}
private:
std::shared_ptr<Service> service_;
};
template <Described_Type T, Json_Type Json, Basic_Lock Lock = std::mutex>
requires std::default_initializable<T> && std::copy_constructible<T> && std::assignable_from<T&, T>
class Drogon_Collection_Resource {
public:
using Service = Collection_Service<T, Json, Lock>;
explicit Drogon_Collection_Resource(std::string path, std::vector<T> initial = {}) : service_(std::make_shared<Service>(std::move(path), std::move(initial))) {}
template <Described_Type Status>
void register_overview_status(std::string api, std::uint64_t interval = 2000) {
service_->template register_overview_status<Status>(std::move(api), interval);
}
template <auto Function>
void register_status(std::uint64_t interval = 2000) {
service_->template register_status<Function>(interval);
}
std::size_t size() const {
return service_->size();
}
Json items_json() const {
return service_->items_json();
}
Json amis_schema() const {
return service_->amis_schema();
}
void bind(drogon::HttpAppFramework& app, Drogon_Bind_Options options = {}) const {
const auto service = service_;
const auto get_constraints = make_drogon_constraints(drogon::Get, options.filters);
const auto post_constraints = make_drogon_constraints(drogon::Post, options.filters);
const auto put_constraints = make_drogon_constraints(drogon::Put, options.filters);
const auto patch_constraints = make_drogon_constraints(drogon::Patch, options.filters);
const auto delete_constraints = make_drogon_constraints(drogon::Delete, options.filters);
app.registerHandler(service->path() + "/descriptor", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->descriptor_response();
});
}, get_constraints);
app.registerHandler(service->path() + "/amis", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->amis_response();
});
}, get_constraints);
if(service->has_status()) {
app.registerHandler(service->path() + "/status/descriptor", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [service] {
return service->status_descriptor_response();
});
}, get_constraints);
app.registerHandler(service->path() + "/{1:id}/status", [service, options](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback, std::uint64_t id) {
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, id] {
return service->status_response(id);
});
}, get_constraints);
}
app.registerHandler(service->path(), [service](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
Collection_Query query;
query.page = read_drogon_size_parameter(request, "page", 1);
query.per_page = read_drogon_size_parameter(request, "perPage", 20);
query.order_by = request->getParameter("orderBy");
query.order_dir = request->getParameter("orderDir");
complete_drogon_request<Json>(callback, [service, query = std::move(query)]() mutable {
return service->list_response(std::move(query));
});
}, get_constraints);
app.registerHandler(service->path() + "/{1:id}", [service](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback, std::uint64_t id) {
complete_drogon_request<Json>(callback, [service, id] {
return service->item_response(id);
});
}, get_constraints);
app.registerHandler(service->path(), [service, options](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, body = std::string(request->getBody())] {
return service->create_response(body);
});
}, post_constraints);
if(service->user_reorderable()) {
app.registerHandler(service->path() + "/order", [service, options](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, body = std::string(request->getBody())] {
return service->reorder_response(body);
});
}, post_constraints);
}
const auto bind_update = [service, options](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback, std::uint64_t id) {
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, id, body = std::string(request->getBody())] {
return service->update_response(id, body);
});
};
app.registerHandler(service->path() + "/{1:id}", bind_update, put_constraints);
app.registerHandler(service->path() + "/{1:id}", bind_update, patch_constraints);
app.registerHandler(service->path() + "/{1:id}", [service, options](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback, std::uint64_t id) {
schedule_drogon_request<Json>(options.executor, std::move(callback), [service, id] {
return service->delete_response(id);
});
}, delete_constraints);
}
private:
std::shared_ptr<Service> service_;
};
template <Described_Type Status, Json_Type Json>
class Drogon_Status_Resource {
public:
using Reader = std::function<Status(const Request_Context&)>;
Drogon_Status_Resource(std::string path, Reader reader, std::uint64_t interval = 2000) : state_(std::make_shared<State>(State{std::move(path), std::move(reader), interval, to_status_descriptor_json<Json, Status>()})) {}
Json amis_schema() const {
return make_amis_status_service<Json>(state_->descriptor, state_->path + "/data", state_->interval);
}
void bind(drogon::HttpAppFramework& app, Drogon_Bind_Options options = {}) const {
const auto state = state_;
const auto constraints = make_drogon_constraints(drogon::Get, options.filters);
app.registerHandler(state->path + "/descriptor", [state](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [state] {
return make_http_success<Json>(state->descriptor);
});
}, constraints);
app.registerHandler(state->path + "/amis", [state](const drogon::HttpRequestPtr&, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
complete_drogon_request<Json>(callback, [state] {
return make_http_success<Json>(make_amis_status_service<Json>(state->descriptor, state->path + "/data", state->interval));
});
}, constraints);
app.registerHandler(state->path + "/data", [state, options](const drogon::HttpRequestPtr& request, std::function<void(const drogon::HttpResponsePtr&)>&& callback) {
Request_Context context;
try {
context = make_drogon_request_context(request, options.context_factory);
} catch(const std::exception& error) {
callback(make_drogon_response(make_http_error<Json>(500, error.what())));
return;
}
schedule_drogon_request<Json>(options.executor, std::move(callback), [state, context] {
return make_http_success<Json>(to_status_json<Json>(state->reader(context)));
});
}, constraints);
}
private:
struct State {
std::string path;
Reader reader;
std::uint64_t interval;
Json descriptor;
};
std::shared_ptr<State> state_;
};
}
@@ -0,0 +1,165 @@
#pragma once
#include "adminive/collection.hpp"
#include "adminive/http.hpp"
#include "httplib.h"
#include <algorithm>
#include <charconv>
#include <concepts>
#include <cstdint>
#include <functional>
#include <memory>
#include <mutex>
#include <shared_mutex>
#include <string>
#include <string_view>
#include <type_traits>
#include <utility>
#include <vector>
namespace adminive {
template <Json_Type Json>
void write_http_json(httplib::Response& response, const Json& value) {
response.set_content(dump_json(value, 2), "application/json; charset=utf-8");
}
template <Json_Type Json>
void write_http_response(httplib::Response& response, Http_Response<Json> value) {
response.status = value.status;
write_http_json(response, value.body);
}
template <Json_Type Json>
void write_http_error(httplib::Response& response, int status, const Update_Result& update) {
write_http_response(response, make_http_error<Json>(status, update));
}
template <class T, Json_Type Json, Basic_Lock Lock = std::shared_mutex>
requires Writable_Adapted_Object<T> && std::copy_constructible<Object_Model_Type<T>>
class Http_Resource {
public:
using Service = Resource_Service<T, Json, Lock>;
using Transaction = typename Service::Transaction;
Http_Resource(T& value, std::string path, Transaction transaction = {}, Lock* shared_lock = nullptr) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction), shared_lock)) {}
template <Basic_Lock Field_Lock>
explicit Http_Resource(Synchronized_Value<std::remove_cvref_t<T>, Lock, Field_Lock>& value, std::string path, Transaction transaction = {}) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction))) {}
template <class Root, Basic_Lock Field_Lock, auto... Members>
requires (!std::is_const_v<Root>) && std::same_as<typename Synchronized_Field<Root, Lock, Field_Lock, Members...>::value_type, std::remove_cvref_t<T>>
explicit Http_Resource(Synchronized_Field<Root, Lock, Field_Lock, Members...> value, std::string path, Transaction transaction = {}, Resource_Lock_Scope lock_scope = Resource_Lock_Scope::local) : service_(std::make_shared<Service>(value, std::move(path), std::move(transaction), lock_scope)) {}
Json amis_schema() const {
return service_->amis_schema();
}
void bind(httplib::Server& server) const {
const auto service = service_;
server.Get(service->path() + "/descriptor", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->descriptor_response());
});
server.Get(service->path() + "/data", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->data_response());
});
server.Get(service->path() + "/amis", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->amis_response());
});
server.Post(service->path() + "/data", [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->update_response(request.body));
});
}
private:
std::shared_ptr<Service> service_;
};
template <Described_Type T, Json_Type Json, Basic_Lock Lock = std::mutex>
requires std::default_initializable<T> && std::copy_constructible<T> && std::assignable_from<T&, T>
class Http_Collection_Resource {
public:
using Service = Collection_Service<T, Json, Lock>;
explicit Http_Collection_Resource(std::string path, std::vector<T> initial = {}) : service_(std::make_shared<Service>(std::move(path), std::move(initial))) {}
template <Described_Type Status>
void register_overview_status(std::string api, std::uint64_t interval = 2000) {
service_->template register_overview_status<Status>(std::move(api), interval);
}
template <auto Function>
void register_status(std::uint64_t interval = 2000) {
service_->template register_status<Function>(interval);
}
std::size_t size() const {
return service_->size();
}
Json items_json() const {
return service_->items_json();
}
Json amis_schema() const {
return service_->amis_schema();
}
void bind(httplib::Server& server) const {
const auto service = service_;
server.Get(service->path() + "/descriptor", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->descriptor_response());
});
server.Get(service->path() + "/amis", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->amis_response());
});
if(service->has_status()) {
server.Get(service->path() + "/status/descriptor", [service](const httplib::Request&, httplib::Response& response) {
write_http_response(response, service->status_descriptor_response());
});
server.Get(status_pattern(service->path()), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->status_response(read_route_id(request)));
});
}
server.Get(service->path(), [service](const httplib::Request& request, httplib::Response& response) {
Collection_Query query;
query.page = read_size_parameter(request, "page", 1);
query.per_page = read_size_parameter(request, "perPage", 20);
if(request.has_param("orderBy")) {
query.order_by = request.get_param_value("orderBy");
query.order_dir = request.has_param("orderDir") ? request.get_param_value("orderDir") : "asc";
}
write_http_response(response, service->list_response(std::move(query)));
});
server.Get(item_pattern(service->path()), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->item_response(read_route_id(request)));
});
server.Post(service->path(), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->create_response(request.body));
});
if(service->user_reorderable()) {
server.Post(service->path() + "/order", [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->reorder_response(request.body));
});
}
server.Put(item_pattern(service->path()), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->update_response(read_route_id(request), request.body));
});
server.Patch(item_pattern(service->path()), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->update_response(read_route_id(request), request.body));
});
server.Delete(item_pattern(service->path()), [service](const httplib::Request& request, httplib::Response& response) {
write_http_response(response, service->delete_response(read_route_id(request)));
});
}
private:
static std::size_t read_size_parameter(const httplib::Request& request, const char* name, std::size_t fallback) {
if(!request.has_param(name)) {
return fallback;
}
const auto text = request.get_param_value(name);
std::size_t value{};
const auto [end, error] = std::from_chars(text.data(), text.data() + text.size(), value);
if(error != std::errc{} || end != text.data() + text.size() || value == 0) {
return fallback;
}
return value;
}
static std::uint64_t read_route_id(const httplib::Request& request) {
const std::string text = request.matches[1].str();
std::uint64_t id{};
const auto [end, error] = std::from_chars(text.data(), text.data() + text.size(), id);
if(error != std::errc{} || end != text.data() + text.size()) {
return 0;
}
return id;
}
static std::string item_pattern(const std::string& path) {
return path + R"(/(\d+))";
}
static std::string status_pattern(const std::string& path) {
return path + R"(/(\d+)/status)";
}
std::shared_ptr<Service> service_;
};
}
@@ -0,0 +1,26 @@
#pragma once
#include "adminive/adapter.hpp"
#include "magic_enum/magic_enum.hpp"
#include <optional>
#include <string_view>
#include <type_traits>
#include <vector>
namespace adminive {
template <class Enum>
requires std::is_enum_v<Enum>
struct Enum_Adapter<Enum> {
static std::vector<Enum> values() {
const auto source = magic_enum::enum_values<Enum>();
return std::vector<Enum>(source.begin(), source.end());
}
static std::string_view name(Enum value) {
return magic_enum::enum_name(value);
}
static std::optional<Enum> cast(std::string_view value) {
return magic_enum::enum_cast<Enum>(value);
}
static std::optional<Enum> cast(std::underlying_type_t<Enum> value) {
return magic_enum::enum_cast<Enum>(value);
}
};
}
@@ -0,0 +1,112 @@
#pragma once
#include "adminive/adapter.hpp"
#include "nlohmann/json.hpp"
#include <cstdint>
#include <string>
#include <string_view>
#include <utility>
#include <vector>
namespace adminive {
template <>
struct Json_Adapter<nlohmann::json> {
using Json = nlohmann::json;
static Json object() {
return Json::object();
}
static Json array() {
return Json::array();
}
static Json null() {
return nullptr;
}
static Json parse(std::string_view value) {
return Json::parse(value.begin(), value.end());
}
static std::string dump(const Json& value, int indent) {
return value.dump(indent);
}
static bool is_null(const Json& value) noexcept {
return value.is_null();
}
static bool is_object(const Json& value) noexcept {
return value.is_object();
}
static bool is_array(const Json& value) noexcept {
return value.is_array();
}
static bool is_string(const Json& value) noexcept {
return value.is_string();
}
static bool is_signed_integer(const Json& value) noexcept {
return value.is_number_integer() && !value.is_number_unsigned();
}
static bool is_unsigned_integer(const Json& value) noexcept {
return value.is_number_unsigned();
}
static bool is_floating_point(const Json& value) noexcept {
return value.is_number_float();
}
static bool is_number(const Json& value) noexcept {
return value.is_number();
}
static bool is_boolean(const Json& value) noexcept {
return value.is_boolean();
}
static std::int64_t signed_integer(const Json& value) {
return value.get<std::int64_t>();
}
static std::uint64_t unsigned_integer(const Json& value) {
return value.get<std::uint64_t>();
}
static long double number(const Json& value) {
return value.get<long double>();
}
static bool contains(const Json& value, std::string_view name) {
return value.contains(std::string(name));
}
static std::size_t size(const Json& value) noexcept {
return value.size();
}
static std::vector<std::string> keys(const Json& value) {
std::vector<std::string> result;
result.reserve(value.size());
for(auto iterator = value.begin(); iterator != value.end(); ++iterator) {
result.push_back(iterator.key());
}
return result;
}
static Json& at(Json& value, std::string_view name) {
return value.at(std::string(name));
}
static const Json& at(const Json& value, std::string_view name) {
return value.at(std::string(name));
}
static Json& at(Json& value, std::size_t index) {
return value.at(index);
}
static const Json& at(const Json& value, std::size_t index) {
return value.at(index);
}
static void set(Json& value, std::string_view name, Json item) {
value[std::string(name)] = std::move(item);
}
static void append(Json& value, Json item) {
value.push_back(std::move(item));
}
static void erase(Json& value, std::string_view name) {
value.erase(std::string(name));
}
template <class T>
static Json make(T&& value) {
if constexpr(std::same_as<std::remove_cvref_t<T>, std::string_view>) {
return Json(std::string(value));
} else {
return Json(std::forward<T>(value));
}
}
template <class T>
static T get(const Json& value) {
return value.get<T>();
}
};
}