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<?php |
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/** |
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* RRDXport.php |
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* |
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* -Description- |
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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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* @package LibreNMS |
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* @link http://librenms.org |
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* @copyright 2016 Tony Murray |
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* @author Tony Murray <[email protected]> |
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*/ |
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namespace App\Data; |
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use Carbon\Carbon; |
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class RRDXport extends RRD implements \JsonSerializable |
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{ |
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protected $supported_formats = ['json', 'csv']; |
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private $output; |
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private $headers; |
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/** |
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* RRDXport constructor. |
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* |
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* @param string $definition rrdtool definition |
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* @param array $headers headers for rrdtool |
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* @param string $start start time |
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* @param string $end end time |
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*/ |
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public function __construct($definition, $headers, $start, $end) |
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{ |
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$args = " xport --json -s $start -e $end $definition"; |
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parent::__construct($args); |
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$this->headers = $headers; |
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} |
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/** |
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* Return the output from this data source |
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* May be base64 encoded PNG, Json Data, or CSV Data |
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* |
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* @param string $format png, json, or csv |
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* @return string |
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*/ |
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public function fetch($format) |
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{ |
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$this->checkFormatSupported($format); |
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if ($format == 'json') { |
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return $this->jsonSerialize(); |
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} elseif ($format == 'csv') { |
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return $this->csvSerialize(); |
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} |
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return null; // shouldn't get here |
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} |
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/** |
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* Get and cache the output of rrdtool as a json object |
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* |
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* @return mixed |
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*/ |
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private function getOutput() |
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{ |
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if (!isset($this->output)) { |
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$output = $this->run(); |
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$output = preg_replace('/\'/', '"', $output); |
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$output = preg_replace('/about\:/', '"meta":', $output); |
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$output = preg_replace('/meta\:/', '"meta":', $output); |
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$this->output = json_decode($output); |
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} |
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return $this->output; |
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} |
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public function jsonSerialize() |
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{ |
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$response = $this->getOutput(); |
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$step = $response->meta->step; |
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$start = $response->meta->start; |
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// $end = $response->meta->end; |
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$cur_time = $start; |
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$tmp_data = []; |
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foreach ($response->data as $data) { |
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$tmp_data[] = [$cur_time] + array_map('intval', $data); |
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$cur_time += $step; |
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} |
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return json_encode([ |
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'data' => $tmp_data, |
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'labels' => $this->headers, |
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]); |
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} |
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public function csvSerialize() |
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{ |
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$response = $this->getOutput(); |
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$step = $response->meta->step; |
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$start = $response->meta->start; |
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// $end = $response->meta->end; |
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$cur_time = $start; |
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$output = 'Date, '.implode(',', $this->headers).PHP_EOL; |
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foreach ($response->data as $data) { |
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$output .= Carbon::createFromTimestamp($cur_time).','; |
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$output .= implode(',', array_map('intval', $data)).PHP_EOL; |
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$cur_time += $step; |
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} |
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return $output; |
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} |
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} |
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murrant /
librenmsv2
Loading history...
Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.
The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.
This check looks for comments that seem to be mostly valid code and reports them.