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/*
* 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->series_columns.tags, key, valueJ);
else if(strncasecmp(&key[key_length-2], "_f", 2) == 0)
add_elt(&serie->series_columns.fields, key, valueJ);
}
int unpack_metric_from_api(json_object *m, struct series_t **serie)
{
*serie = malloc(sizeof(struct series_t));
bzero(*serie, sizeof(struct series_t));
wrap_json_object_for_all(m, unpacking_from_api, *serie);
if(!(*serie)->timestamp)
(*serie)->timestamp = get_ts();
return 0;
}
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