1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*
* Copyright (C) 2018 "IoT.bzh"
* Author "Romain Forlot" <romain.forlot@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.
*/
#define _GNU_SOURCE
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include "influxdb.h"
#include "tsdb.h"
#include "wrap-json.h"
#include "../utils/list.h"
void concatenate(char* dest, const char* source, const char *sep)
{
strncat(dest, sep, strlen(sep));
strncat(dest, source, strlen(source));
}
size_t make_url(char *url, size_t l_url, const char *host, const char *port, const char *endpoint)
{
bzero(url, l_url);
/* Handle default host and port */
host = host ? host : DEFAULT_DBHOST;
port = port ? port : DEFAULT_DBPORT;
strncat(url, host, strlen(host));
strncat(url, ":", 1);
strncat(url, port, strlen(port));
strncat(url, "/", 1);
strncat(url, endpoint, strlen(endpoint));
strncat(url, "?db="DEFAULT_DB, strlen("?db="DEFAULT_DB));
return strlen(url);
}
int create_database()
{
int ret = 0;
char *result;
size_t result_size;
// Declare query to be posted
const char *post_data[2];
post_data[0] = "q=CREATE DATABASE \""DEFAULT_DB"\"";
post_data[1] = NULL;
CURL *request = curl_wrap_prepare_post("localhost:"DEFAULT_DBPORT"/query",NULL, 1, post_data);
curl_wrap_perform(request, &result, &result_size);
if(curl_wrap_response_code_get(request) != 200) {
AFB_ERROR("Can't create database.");
ret = ERROR;
}
curl_easy_cleanup(request);
if(ret == 0)
AFB_NOTICE("Database '"DEFAULT_DB"' created");
return ret;
}
void unpacking_from_api(void *s, json_object *valueJ, const char *key)
{
size_t key_length = strlen(key);
struct series_t *serie = (struct series_t*)s;
/* Treat the 2 static key that could have been specified */
if(strcasecmp("name", key) == 0)
serie->name = json_object_get_string(valueJ);
else if(strcasecmp("timestamp", key) == 0)
serie->timestamp = get_ts();
/* Treat all key looking for tag and field object. Those ones could be find
with the last 2 character. '_t' for tag and '_f' that are the keys that
could be indefinite. Cf influxdb documentation:
https://docs.influxdata.com/influxdb/v1.5/write_protocols/line_protocol_reference/ */
else if(strncasecmp(&key[key_length-2], "_t", 2) == 0)
add_elt(&serie->serie_columns.tags, key, valueJ);
else if(strncasecmp(&key[key_length-2], "_f", 2) == 0)
add_elt(&serie->serie_columns.fields, key, valueJ);
}
int unpack_metric_from_api(json_object *m, struct series_t *serie)
{
wrap_json_object_for_all(m, unpacking_from_api, serie);
if(!serie->timestamp)
serie->timestamp = get_ts();
return 0;
}
|
