From 0a547add2f4cc264380d2dab2c472efe5a1d7094 Mon Sep 17 00:00:00 2001
From: Pim van den Berg
Date: Sat, 3 May 2014 19:17:16 +0200
Subject: graph.php: use JSON plugins instead of including PHP plugin files

A couple of big changes here. A lot of logic moved to graph.php.

The PHP plugin files have been rewritten to JSON. In these JSON files
*everything* is optional. Also *NOT* having a JSON plugin file won't
block you from having a graph. The JSON will just make the graphs
prettier (by having a title, y-axis title, legend, colors, etc..).

The Collectd types.db file is parsed and used to determine RRD content.
When things are not defined in the JSON it will fallback to a default.
---
 inc/collectd.inc.php | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'inc/collectd.inc.php')

diff --git a/inc/collectd.inc.php b/inc/collectd.inc.php
index 3bfc6ff..695d79c 100644
--- a/inc/collectd.inc.php
+++ b/inc/collectd.inc.php
@@ -167,3 +167,27 @@ function plugin_sort($data) {
 
 	return $data;
 }
+
+function parse_typesdb_file($file = '/usr/share/collectd/types.db') {
+	if (!file_exists($file))
+		$file = 'inc/types.db';
+
+	$types = array();
+	foreach (file($file) as $type) {
+		if(!preg_match('/^(?P<dataset>[\w_]+)\s+(?P<datasources>.*)/', $type, $matches))
+			continue;
+		$dataset = $matches['dataset'];
+		$datasources = explode(', ', $matches['datasources']);
+
+		foreach ($datasources as $ds) {
+			if (!preg_match('/^(?P<dsname>\w+):(?P<dstype>[\w]+):(?P<min>[\-\dU\.]+):(?P<max>[\dU\.]+)/', $ds, $matches))
+				error_log(sprintf('CGP Error: DS "%s" from dataset "%s" did not match', $ds, $dataset));
+			$types[$dataset][$matches['dsname']] = array(
+				'dstype' => $matches['dstype'],
+				'min' => $matches['min'],
+				'max' => $matches['max'],
+			);
+		}
+	}
+	return $types;
+}
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