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61 lines
2.0 KiB
PHP
61 lines
2.0 KiB
PHP
<?php
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/*
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* LibreNMS abstract data storage interface to both rrdtool & influxdb
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*
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* Copyright (c) 2016 Paul D. Gear <paul@librenms.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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require_once $config['install_dir'] . "/includes/rrdtool.inc.php";
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require_once $config['install_dir'] . "/includes/influxdb.inc.php";
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/*
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* @return Copy of $arr with all keys beginning with 'rrd_' removed.
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*/
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function rrd_array_filter($arr)
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{
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$result = array();
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foreach ($arr as $k => $v) {
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if (strpos($k, 'rrd_') === 0) {
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continue;
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}
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$result[$k] = $v;
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}
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return $result;
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} // rrd_array_filter
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/*
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* Datastore-independent function which should be used for all polled metrics.
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*/
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function data_update($device, $measurement, $tags, $fields)
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{
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// convenience conversion to allow calling with a single value, so, e.g., these are equivalent:
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// data_update($device, 'mymeasurement', $tags, 1234);
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// AND
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// data_update($device, 'mymeasurement', $tags, array('mymeasurement' => 1234));
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if (!is_array($fields)) {
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$fields = array($measurement => $fields);
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}
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// rrdtool_data_update() will only use the tags it deems relevant, so we pass all of them.
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// However, influxdb saves all tags, so we filter out the ones beginning with 'rrd_'.
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rrdtool_data_update($device, $measurement, $tags, $fields);
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influx_update($device, $measurement, rrd_array_filter($tags), $fields);
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} // data_update
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