Load resources from config automatically instead of throwing an exception

fixes #10918

library/Icinga/Application/ApplicationBootstrap.php

@@ -520,25 +520,6 @@ abstract class ApplicationBootstrap
         return $this;
     }
 
-    /**
-     * Set up the resource factory
-     *
-     * @return $this
-     */
-    protected function setupResourceFactory()
-    {
-        try {
-            $config = Config::app('resources');
-            ResourceFactory::setConfig($config);
-        } catch (NotReadableError $e) {
-            Logger::error(
-                new IcingaException('Cannot load resource configuration. An exception was thrown:', $e)
-            );
-        }
-
-        return $this;
-    }
-
     /**
      * Set up the user backend factory
      *

library/Icinga/Application/Cli.php

@@ -41,7 +41,6 @@ class Cli extends ApplicationBootstrap
             ->setupInternationalization()
             ->parseBasicParams()
             ->setupLogger()
-            ->setupResourceFactory()
             ->setupModuleManager()
             ->setupUserBackendFactory()
             ->loadSetupModuleIfNecessary();

library/Icinga/Application/Web.php

@@ -82,7 +82,6 @@ class Web extends EmbeddedWeb
             ->setupLogging()
             ->setupErrorHandling()
             ->loadConfig()
-            ->setupResourceFactory()
             ->setupSession()
             ->setupNotifications()
             ->setupRequest()

library/Icinga/Data/ResourceFactory.php

@@ -67,16 +67,14 @@ class ResourceFactory implements ConfigAwareFactory
     }
 
     /**
-     * Check if the existing resources are set. If not, throw an error.
+     * Check if the existing resources are set. If not, load them from resources.ini
      *
      * @throws  ConfigurationError
      */
     private static function assertResourcesExist()
     {
         if (self::$resources === null) {
-            throw new ConfigurationError(
-                'Resources not set up. Please contact your Icinga Web administrator'
-            );
+            self::$resources = Config::app('resources');
         }
     }