1 files changed, 44 insertions, 0 deletions
diff --git a/library/Toplevelview/Command.php b/library/Toplevelview/Command.php
new file mode 100644
index 0000000..95fb47b
--- /dev/null
+++ b/library/Toplevelview/Command.php
@@ -0,0 +1,44 @@
+<?php
+/* Copyright (C) 2017 Icinga Development Team <info@icinga.com> */
+
+namespace Icinga\Module\Toplevelview;
+
+use Icinga\Application\Icinga;
+use Icinga\Exception\ConfigurationError;
+use Icinga\Exception\IcingaException;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+use Icinga\Cli\Command as IcingaCommand;
+
+class Command extends IcingaCommand
+{
+    /** @var  MonitoringBackend */
+    protected $monitoringBackend;
+
+    public function init()
+    {
+        parent::init();
+
+        if (! extension_loaded('yaml')) {
+            throw new ConfigurationError('You need the PHP extension "yaml" in order to use TopLevelView');
+        }
+    }
+
+    /**
+     * Retrieves the Icinga MonitoringBackend
+     *
+     * @param string|null $name
+     *
+     * @return MonitoringBackend
+     * @throws IcingaException When monitoring is not enabled
+     */
+    protected function monitoringBackend($name = null)
+    {
+        if ($this->monitoringBackend === null) {
+            if (! Icinga::app()->getModuleManager()->hasEnabled('monitoring')) {
+                throw new IcingaException('The module "monitoring" must be enabled and configured!');
+            }
+            $this->monitoringBackend = MonitoringBackend::instance($name);
+        }
+        return $this->monitoringBackend;
+    }
+}