From 7c729c0965415c206657200c235e3a8079a55dd3 Mon Sep 17 00:00:00 2001
From: Jaroslav Hanslik <kukulich@kukulich.cz>
Date: Tue, 8 Oct 2013 21:40:06 +0200
Subject: [PATCH] RUM can be enabled only for certain ratio of users

---
 README.md                          | 1 +
 src/VrtakCZ/NewRelic/Extension.php | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 8452a25..e796cc3 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,7 @@ newrelic:
 	# optional options with default values
 	rum:
 		enabled: auto # other options are Yes/No
+		ratio: 1
 	transactionTracer:
 		enabled: Yes
 		detail: 1
diff --git a/src/VrtakCZ/NewRelic/Extension.php b/src/VrtakCZ/NewRelic/Extension.php
index 78d2bfb..9e4349c 100644
--- a/src/VrtakCZ/NewRelic/Extension.php
+++ b/src/VrtakCZ/NewRelic/Extension.php
@@ -21,6 +21,7 @@ class Extension extends \Nette\Config\CompilerExtension
 		),
 		'rum' => array(
 			'enabled' => 'auto',
+			'ratio' => 1,
 		),
 		'transactionTracer' => array(
 			'enabled' => TRUE,
@@ -226,7 +227,7 @@ private function setupRUM()
 		$config = $this->getConfig($this->defaults);
 		$builder = $this->getContainerBuilder();
 
-		$rumEnabled = $this->enabled && true === $config['rum']['enabled'];
+		$rumEnabled = $this->enabled && true === $config['rum']['enabled'] && mt_rand(0, 99) <= round($config['rum']['ratio'] * 100) - 1;
 
 		$builder->addDefinition($this->prefix('rum'))
 			->setClass('Nette\DI\NestedAccessor', array('@container', $this->prefix('rum')));