80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
#ifndef JSON_HPP
|
|
#define JSON_HPP
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <zephyr/data/json.h>
|
|
|
|
namespace JsonParser
|
|
{
|
|
void init();
|
|
void add_text(const uint8_t* buf, size_t size);
|
|
// int json_printer(const char* bytes, size_t len, void* data);
|
|
|
|
class HandlerBase
|
|
{
|
|
public:
|
|
/* private but accessible from static functions */
|
|
HandlerBase* _next;
|
|
|
|
HandlerBase();
|
|
virtual bool handle(const char* buf, size_t size) = 0;
|
|
};
|
|
|
|
template <typename Struct, size_t DESC_SIZE, typename Fct>
|
|
class Handler: public HandlerBase
|
|
{
|
|
const Struct& _s;
|
|
const json_obj_descr* _da;
|
|
Fct _fct;
|
|
bool _allow_partial;
|
|
|
|
const int64_t _all_fields;
|
|
|
|
public:
|
|
Handler(
|
|
Struct default_s,
|
|
const json_obj_descr (&da)[DESC_SIZE],
|
|
Fct fct,
|
|
bool allow_partial = false):
|
|
_s {default_s},
|
|
_da {da},
|
|
_fct {fct},
|
|
_allow_partial {allow_partial},
|
|
_all_fields {(1 << DESC_SIZE) - 1}
|
|
{}
|
|
|
|
// void print(const Struct& s)
|
|
// {
|
|
// json_obj_encode(_da, DESC_SIZE, &s, json_printer, NULL);
|
|
// }
|
|
|
|
bool handle(const char* buf, size_t size) override
|
|
{
|
|
Struct s {_s};
|
|
int64_t ret = json_obj_parse((char*)buf, size, _da, DESC_SIZE, &s);
|
|
if (ret <= 0)
|
|
{
|
|
return false;
|
|
}
|
|
if (ret != _all_fields && !_allow_partial)
|
|
{
|
|
return false;
|
|
}
|
|
if (!_fct(s, ret, _all_fields))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// LOG_DBG"received a valid json\n");
|
|
// print(s);
|
|
// LOG_INF"\n");
|
|
return true;
|
|
}
|
|
};
|
|
|
|
} // namespace JsonParser
|
|
|
|
#endif /* JSON_HPP */
|