Monitoring: add monitoring integration helper

library/Director/Monitoring.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Icinga\Module\Director;
+
+use Icinga\Application\Icinga;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+
+class Monitoring
+{
+    protected $backend;
+
+    public function __construct()
+    {
+        $app = Icinga::app();
+        $modules = $app->getModuleManager();
+        if (!$modules->hasLoaded('monitoring') && $app->isCli()) {
+            $app->getModuleManager()->loadEnabledModules();
+        }
+
+        if ($modules->hasLoaded('monitoring')) {
+            $this->backend = MonitoringBackend::createBackend();
+        }
+    }
+
+    public function isAvailable()
+    {
+        return $this->backend !== null;
+    }
+
+    public function hasHost($hostname)
+    {
+        return $this->backend->select()->from('hostStatus', array(
+            'hostname' => 'host_name',
+        ))->where('host_name', $hostname)->fetchOne() === $hostname;
+    }
+}

library/Director/Web/Controller/ActionController.php

@@ -8,6 +8,7 @@ use Icinga\Exception\AuthenticationException;
 use Icinga\Exception\ConfigurationError;
 use Icinga\Exception\NotFoundError;
 use Icinga\Module\Director\Db;
+use Icinga\Module\Director\Monitoring;
 use Icinga\Module\Director\Objects\IcingaEndpoint;
 use Icinga\Module\Director\Web\Form\FormLoader;
 use Icinga\Module\Director\Web\Table\TableLoader;
@@ -22,6 +23,8 @@ abstract class ActionController extends Controller
 
     private $api;
 
+    private $monitoring;
+
     public function init()
     {
         if ($this->getRequest()->isApiRequest()) {
@@ -219,4 +222,13 @@ abstract class ActionController extends Controller
 
         return $this->db;
     }
+
+    protected function monitoring()
+    {
+        if ($this->monitoring === null) {
+            $this->monitoring = new Monitoring;
+        }
+
+        return $this->monitoring;
+    }
 }