From bc54d5914663f7b8fbadcea37d62d366287c7751 Mon Sep 17 00:00:00 2001
From: Matthias <pub@matthias-henning.de>
Date: Fri, 15 Jun 2018 11:35:38 +0200
Subject: [PATCH] Added Grapher

---
 .../Businessprocess/ProvidedHook/Grapher.php  | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 library/Businessprocess/ProvidedHook/Grapher.php

diff --git a/library/Businessprocess/ProvidedHook/Grapher.php b/library/Businessprocess/ProvidedHook/Grapher.php
new file mode 100644
index 0000000..a911f45
--- /dev/null
+++ b/library/Businessprocess/ProvidedHook/Grapher.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\ProvidedHook;
+
+use Icinga\Application\Config;
+use Icinga\Application\Hook\GrapherHook;
+use Icinga\Module\Businessprocess\Renderer\TileRenderer;
+use Icinga\Module\Businessprocess\Renderer\TreeRenderer;
+use Icinga\Module\Businessprocess\State\MonitoringState;
+use Icinga\Module\Businessprocess\Storage\LegacyStorage;
+use Icinga\Module\Businessprocess\Web\Url;
+use Icinga\Module\Monitoring\Object\MonitoredObject;
+use Icinga\Module\Monitoring\Object\Service;
+
+class Grapher extends GrapherHook
+{
+
+    /**
+     * @var $storage LegacyStorage
+     */
+    private $storage;
+
+    /**
+     * Initialize storage
+     */
+    public function init()
+    {
+        try {
+            $this->storage = new LegacyStorage(
+                Config::module('businessprocess')->getSection('global')
+            );
+        } catch (\Exception $e) {
+            // Ignore and don't display anything
+        }
+
+        $this->hasPreviews = true;
+    }
+
+    /**
+     * Returns false if the MonitoredObject is not a service or the check_command is not icingacli-businessprocess
+     *
+     * @param MonitoredObject $object
+     * @return bool
+     */
+    public function has(MonitoredObject $object)
+    {
+        return $object instanceof Service && $object->check_command == 'icingacli-businessprocess';
+    }
+
+
+    /**
+     * Returns the rendered Tree-/TileRenderer HTML
+     *
+     * @param MonitoredObject $object
+     * @return string
+     * @throws \Icinga\Exception\ProgrammingError
+     */
+    public function getPreviewHtml(MonitoredObject $object)
+    {
+        if (!$this->has($object) || !$this->storage) {
+            return '';
+        }
+
+        $bpName = $object->_service_icingacli_businessprocess_process;
+        $bp = $this->storage->loadProcess($bpName);
+
+        MonitoringState::apply($bp);
+
+        if (filter_var($object->_service_icingacli_businessprocess_grapher_tree, FILTER_VALIDATE_BOOLEAN)) {
+            $renderer = new TreeRenderer($bp);
+        } else {
+            $renderer = new TileRenderer($bp);
+        }
+
+        $renderer->setBaseUrl(Url::fromPath('businessprocess/process/show?config=' . $bpName . '&node=' . $bpName));
+
+        $html = '<div class="icinga-module module-businessprocess"><h2>Business Process</h2>';
+        $html = $html . $renderer->render() . '</div>';
+        return $html;
+    }
+}