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<?php |
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/** |
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* RRDGraph.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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class RRDGraph extends RRD |
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{ |
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protected $supported_formats = ['png']; |
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public function __construct($definitions, $start, $end, $width, $height) |
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{ |
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$args = " graph - -s $start -e $end --width $width --height $height ". |
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"--alt-autoscale-max --rigid -E -c BACK#EEEEEE00 -c SHADEA#EEEEEE00 -c SHADEB#EEEEEE00 -c \ |
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FONT#000000 -c CANVAS#FFFFFF00 -c GRID#a5a5a5 -c MGRID#FF9999 -c FRAME#5e5e5e -c ARROW#5e5e5e \ |
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-R normal --font LEGEND:8:DejaVuSansMono --font AXIS:7:DejaVuSansMono --font-render-mode normal ". |
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$definitions; |
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parent::__construct($args); |
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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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return base64_encode($this->run()); |
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} |
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} |
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