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#pragma once
/*
* Copyright (C) 2018 "IoT.bzh"
* Author Loïc Collignon <loic.collignon@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string>
#include <vector>
#include <json-c/json.h>
template<class T>
inline T& jcast(T& v, json_object* o)
{
v << o;
return v;
}
template<class T>
inline T& jcast_array(T& v, json_object* o)
{
if (o == nullptr) return v;
auto sz = json_object_array_length(o);
for(auto i = 0; i < sz ; ++i)
{
typename T::value_type item;
jcast(item, json_object_array_get_idx(o, i));
v.push_back(item);
}
return v;
}
template<>
inline bool& jcast<bool>(bool& v, json_object* o)
{
v = (json_object_get_boolean(o) == TRUE);
return v;
}
template<>
inline double& jcast<double>(double& v, json_object* o)
{
v = json_object_get_double(o);
return v;
}
template<>
inline int32_t& jcast<int32_t>(int32_t& v, json_object* o)
{
v = json_object_get_int(o);
return v;
}
template<>
inline int64_t& jcast<int64_t>(int64_t& v, json_object* o)
{
v = json_object_get_int(o);
return v;
}
template<>
inline std::string& jcast<std::string>(std::string& v, json_object* o)
{
const char* tmp = json_object_get_string(o);
v = tmp ? tmp : "";
return v;
}
template<class T>
inline T& jcast(T& v, json_object* o, std::string field)
{
json_object * value;
json_object_object_get_ex(o, field.c_str(), &value);
return jcast<T>(v, value);
}
template<class T>
inline T& jcast_array(T& v, json_object* o, std::string field)
{
json_object * value;
json_object_object_get_ex(o, field.c_str(), &value);
return jcast_array<T>(v, value);
}
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