mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-16 00:00:02 +01:00
123 lines
3 KiB
C
123 lines
3 KiB
C
/** JSON serializtion sample data.
|
|
*
|
|
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
|
|
* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
|
|
* @license GNU General Public License (version 3)
|
|
*
|
|
* VILLASnode
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*********************************************************************************/
|
|
|
|
#include "sample_io_json.h"
|
|
|
|
int sample_io_json_pack(json_t **j, struct sample *s, int flags)
|
|
{
|
|
json_error_t err;
|
|
json_t *json_data = json_array();
|
|
|
|
for (int i = 0; i < s->length; i++) {
|
|
json_t *json_value = sample_get_data_format(s, i)
|
|
? json_integer(s->data[i].i)
|
|
: json_real(s->data[i].f);
|
|
|
|
json_array_append(json_data, json_value);
|
|
}
|
|
|
|
*j = json_pack_ex(&err, 0, "{ s: { s: [ I, I ], s: [ I, I ], s: [ I, I ] }, s: I, s: o }",
|
|
"ts",
|
|
"origin", s->ts.origin.tv_sec, s->ts.origin.tv_nsec,
|
|
"received", s->ts.received.tv_sec, s->ts.received.tv_nsec,
|
|
"sent", s->ts.sent.tv_sec, s->ts.sent.tv_nsec,
|
|
"sequence", s->sequence,
|
|
"data", json_data);
|
|
|
|
if (!*j)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sample_io_json_unpack(json_t *j, struct sample *s, int *flags)
|
|
{
|
|
int ret, i;
|
|
json_t *json_data, *json_value;
|
|
|
|
ret = json_unpack(j, "{ s: { s: [ I, I ], s: [ I, I ], s: [ I, I ] }, s: I, s: o }",
|
|
"ts",
|
|
"origin", &s->ts.origin.tv_sec, &s->ts.origin.tv_nsec,
|
|
"received", &s->ts.received.tv_sec, &s->ts.received.tv_nsec,
|
|
"sent", &s->ts.sent.tv_sec, &s->ts.sent.tv_nsec,
|
|
"sequence", &s->sequence,
|
|
"data", &json_data);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
s->length = 0;
|
|
|
|
json_array_foreach(json_data, i, json_value) {
|
|
switch (json_typeof(json_value)) {
|
|
case JSON_REAL:
|
|
s->data[i].f = json_real_value(json_value);
|
|
sample_set_data_format(s, i, SAMPLE_DATA_FORMAT_FLOAT);
|
|
break;
|
|
|
|
case JSON_INTEGER:
|
|
s->data[i].f = json_integer_value(json_value);
|
|
sample_set_data_format(s, i, SAMPLE_DATA_FORMAT_INT);
|
|
break;
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
s->length++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sample_io_json_fprint(FILE *f, struct sample *s, int flags)
|
|
{
|
|
int ret;
|
|
json_t *json;
|
|
|
|
ret = sample_io_json_pack(&json, s, flags);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = json_dumpf(json, f, 0);
|
|
|
|
json_decref(json);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int sample_io_json_fscan(FILE *f, struct sample *s, int *flags)
|
|
{
|
|
int ret;
|
|
json_t *json;
|
|
json_error_t err;
|
|
|
|
json = json_loadf(f, JSON_DISABLE_EOF_CHECK, &err);
|
|
if (!json)
|
|
return -1;
|
|
|
|
ret = sample_io_json_unpack(json, s, flags);
|
|
|
|
json_decref(json);
|
|
|
|
return ret;
|
|
}
|