2 Copyright (C) 2010-2011 jeanfi@gmail.com
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 #include "psensor_json.h"
26 #define ATT_SENSOR_ID "id"
27 #define ATT_SENSOR_NAME "name"
28 #define ATT_SENSOR_TYPE "type"
29 #define ATT_SENSOR_MIN "min"
30 #define ATT_SENSOR_MAX "max"
31 #define ATT_SENSOR_LAST_MEASURE "last_measure"
32 #define ATT_SENSOR_MEASURES "measures"
33 #define ATT_MEASURE_VALUE "value"
34 #define ATT_MEASURE_TIME "time"
37 measure_to_json_object(struct measure *m)
39 json_object *o = json_object_new_object();
41 json_object_object_add(o,
43 json_object_new_double(m->value.d_num));
44 json_object_object_add(o, ATT_MEASURE_TIME,
45 json_object_new_int((m->time).tv_sec));
50 measures_to_json_object(struct psensor *s)
55 o = json_object_new_array();
57 for (i = 0; i < s->values_max_length; i++)
58 if (s->measures[i].time.tv_sec)
60 (o, measure_to_json_object(&s->measures[i]));
66 static json_object *sensor_to_json(struct psensor *s)
68 json_object *mo, *obj;
71 obj = json_object_new_object();
73 json_object_object_add(obj,
75 json_object_new_string(s->id));
76 json_object_object_add(obj,
78 json_object_new_string(s->name));
79 json_object_object_add(obj,
80 ATT_SENSOR_TYPE, json_object_new_int(s->type));
81 json_object_object_add(obj,
82 ATT_SENSOR_MIN, json_object_new_double(s->min));
83 json_object_object_add(obj,
84 ATT_SENSOR_MAX, json_object_new_double(s->max));
85 json_object_object_add(obj,
87 measures_to_json_object(s));
89 m = psensor_get_current_measure(s);
90 mo = json_object_new_object();
91 json_object_object_add(mo,
93 json_object_new_double(m->value.d_num));
94 json_object_object_add(mo, ATT_MEASURE_TIME,
95 json_object_new_int((m->time).tv_sec));
96 json_object_object_add(obj, ATT_SENSOR_LAST_MEASURE, mo);
101 char *sensor_to_json_string(struct psensor *s)
104 json_object *obj = sensor_to_json(s);
106 str = strdup(json_object_to_json_string(obj));
108 json_object_put(obj);
113 char *sensors_to_json_string(struct psensor **sensors)
115 struct psensor **sensors_cur;
117 json_object *obj = json_object_new_array();
119 sensors_cur = sensors;
121 while (*sensors_cur) {
122 struct psensor *s = *sensors_cur;
124 json_object_array_add(obj, sensor_to_json(s));
129 str = strdup(json_object_to_json_string(obj));
131 json_object_put(obj);
136 struct psensor *psensor_new_from_json(json_object *o,
137 const char *sensors_url,
138 int values_max_length)
140 json_object *oid, *oname, *otype;
144 oid = json_object_object_get(o, "id");
145 oname = json_object_object_get(o, "name");
146 otype = json_object_object_get(o, "type");
148 eid = url_encode(json_object_get_string(oid));
149 url = malloc(strlen(sensors_url) + 1 + strlen(eid) + 1);
150 sprintf(url, "%s/%s", sensors_url, eid);
152 s = psensor_create(strdup(url),
153 strdup(json_object_get_string(oname)),
154 json_object_get_int(otype) | SENSOR_TYPE_REMOTE,