From 8df5534470947c29e2318e87b2c2cf4b7f931f06 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Monta=C3=B1ez?= <andresmontanez@gmail.com>
Date: Wed, 6 Aug 2014 20:41:30 -0300
Subject: [PATCH] Check if classes exists.

---
 Mage/Command/Factory.php | 5 +++++
 Mage/Task/Factory.php    | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/Mage/Command/Factory.php b/Mage/Command/Factory.php
index a006efa..1ba9b4d 100644
--- a/Mage/Command/Factory.php
+++ b/Mage/Command/Factory.php
@@ -38,6 +38,11 @@ class Factory
 
         $commandName = str_replace(' ', '_', ucwords(str_replace('/', ' ', $commandName)));
         $className = 'Mage\\Command\\BuiltIn\\' . $commandName . 'Command';
+
+        if (!class_exists($className)) {
+            throw new Exception('Command "' . $commandName . '" not found.');
+        }
+
         /** @var AbstractCommand $instance */
         $instance = new $className;
         if (!is_a($instance, "Mage\Command\AbstractCommand")) {
diff --git a/Mage/Task/Factory.php b/Mage/Task/Factory.php
index d854c42..fce6050 100644
--- a/Mage/Task/Factory.php
+++ b/Mage/Task/Factory.php
@@ -54,6 +54,10 @@ class Factory
             $className = 'Mage\\Task\\BuiltIn\\' . str_replace(' ', '\\', ucwords(str_replace('/', ' ', $taskName))) . 'Task';
         }
 
+        if (!class_exists($className)) {
+            throw new Exception('Task "' . $taskName . '" not found.');
+        }
+
         $instance = new $className($taskConfig, $inRollback, $stage, $taskParameters);
 
         if (!is_a($instance, 'Mage\Task\AbstractTask')) {