From b7fd908d538ed19fe41f03c0a3f93351d8da64e9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 14 Apr 2024 15:15:40 +0200
Subject: Adding upstream version 2.5.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 library/Businessprocess/State/IcingaDbState.php | 191 ++++++++++++++++++++++++
 1 file changed, 191 insertions(+)
 create mode 100644 library/Businessprocess/State/IcingaDbState.php

(limited to 'library/Businessprocess/State/IcingaDbState.php')

diff --git a/library/Businessprocess/State/IcingaDbState.php b/library/Businessprocess/State/IcingaDbState.php
new file mode 100644
index 0000000..1a66900
--- /dev/null
+++ b/library/Businessprocess/State/IcingaDbState.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Icinga\Module\Businessprocess\State;
+
+use Exception;
+use Icinga\Application\Benchmark;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\IcingaDbObject;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Icingadb\Common\IcingaRedis;
+use Icinga\Module\Icingadb\Model\Host;
+use Icinga\Module\Icingadb\Model\Service;
+use ipl\Sql\Connection as IcingaDbConnection;
+use ipl\Stdlib\Filter;
+
+class IcingaDbState
+{
+    /** @var BpConfig */
+    protected $config;
+
+    /** @var IcingaDbConnection */
+    protected $backend;
+
+    public function __construct(BpConfig $config)
+    {
+        $this->config = $config;
+        $this->backend = IcingaDbObject::fetchDb();
+    }
+
+    public static function apply(BpConfig $config)
+    {
+        $self = new static($config);
+        $self->retrieveStatesFromBackend();
+
+        return $config;
+    }
+
+    public function retrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        try {
+            $this->reallyRetrieveStatesFromBackend();
+        } catch (Exception $e) {
+            $config->addError(
+                $config->translate('Could not retrieve process state: %s'),
+                $e->getMessage()
+            );
+        }
+    }
+
+    public function reallyRetrieveStatesFromBackend()
+    {
+        $config = $this->config;
+
+        $involvedHostNames = $config->listInvolvedHostNames();
+        if (empty($involvedHostNames)) {
+            return $this;
+        }
+
+        Benchmark::measure(sprintf(
+            'Retrieving states for business process %s using Icinga DB backend',
+            $config->getName()
+        ));
+
+        $hosts = Host::on($this->backend)->columns([
+            'id' => 'host.id',
+            'name' => 'host.name',
+            'display_name' => 'host.display_name',
+            'hard_state' => 'host.state.hard_state',
+            'soft_state' => 'host.state.soft_state',
+            'last_state_change' => 'host.state.last_state_change',
+            'in_downtime' => 'host.state.in_downtime',
+            'is_acknowledged' => 'host.state.is_acknowledged'
+        ])->filter(Filter::equal('host.name', $involvedHostNames));
+
+        $services = Service::on($this->backend)->columns([
+            'id' => 'service.id',
+            'name' => 'service.name',
+            'display_name' => 'service.display_name',
+            'host_name' => 'host.name',
+            'host_display_name' => 'host.display_name',
+            'hard_state' => 'service.state.hard_state',
+            'soft_state' => 'service.state.soft_state',
+            'last_state_change' => 'service.state.last_state_change',
+            'in_downtime' => 'service.state.in_downtime',
+            'is_acknowledged' => 'service.state.is_acknowledged'
+        ])->filter(Filter::equal('host.name', $involvedHostNames));
+
+        // All of this is ipl-sql now, for performance reasons
+        foreach ($config->listInvolvedConfigs() as $cfg) {
+            $serviceIds = [];
+            $serviceResults = [];
+            foreach ($this->backend->yieldAll($services->assembleSelect()) as $row) {
+                $row->hex_id = bin2hex(is_resource($row->id) ? stream_get_contents($row->id) : $row->id);
+                $serviceIds[] = $row->hex_id;
+                $serviceResults[] = $row;
+            }
+
+            $redisServiceResults = iterator_to_array(IcingaRedis::fetchServiceState($serviceIds, [
+                'hard_state',
+                'soft_state',
+                'last_state_change',
+                'in_downtime',
+                'is_acknowledged'
+            ]));
+            foreach ($serviceResults as $row) {
+                if (isset($redisServiceResults[$row->hex_id])) {
+                    $row = (object) array_merge(
+                        (array) $row,
+                        $redisServiceResults[$row->hex_id]
+                    );
+                }
+
+                $this->handleDbRow($row, $cfg, 'service');
+            }
+
+            Benchmark::measure('Retrieved states for ' . count($serviceIds) .  ' services in ' . $config->getName());
+
+            $hostIds = [];
+            $hostResults = [];
+            foreach ($this->backend->yieldAll($hosts->assembleSelect()) as $row) {
+                $row->hex_id = bin2hex(is_resource($row->id) ? stream_get_contents($row->id) : $row->id);
+                $hostIds[] = $row->hex_id;
+                $hostResults[] = $row;
+            }
+
+            $redisHostResults = iterator_to_array(IcingaRedis::fetchHostState($hostIds, [
+                'hard_state',
+                'soft_state',
+                'last_state_change',
+                'in_downtime',
+                'is_acknowledged'
+            ]));
+            foreach ($hostResults as $row) {
+                if (isset($redisHostResults[$row->hex_id])) {
+                    $row = (object) array_merge(
+                        (array) $row,
+                        $redisHostResults[$row->hex_id]
+                    );
+                }
+
+                $this->handleDbRow($row, $cfg, 'host');
+            }
+
+            Benchmark::measure('Retrieved states for ' . count($hostIds) .  ' hosts in ' . $config->getName());
+        }
+
+        Benchmark::measure('Got states for business process ' . $config->getName());
+
+        return $this;
+    }
+
+    protected function handleDbRow($row, BpConfig $config, $type)
+    {
+        if ($type === 'service') {
+            $key = BpConfig::joinNodeName($row->host_name, $row->name);
+        } else {
+            $key = BpConfig::joinNodeName($row->name, 'Hoststatus');
+        }
+
+        // We fetch more states than we need, so skip unknown ones
+        if (! $config->hasNode($key)) {
+            return;
+        }
+
+        $node = $config->getNode($key);
+
+        if ($this->config->usesHardStates()) {
+            if ($row->hard_state !== null) {
+                $node->setState($row->hard_state)->setMissing(false);
+            }
+        } else {
+            if ($row->soft_state !== null) {
+                $node->setState($row->soft_state)->setMissing(false);
+            }
+        }
+
+        if ($row->last_state_change !== null) {
+            $node->setLastStateChange($row->last_state_change / 1000.0);
+        }
+
+        $node->setDowntime($row->in_downtime === 'y');
+        $node->setAck($row->is_acknowledged === 'y');
+        $node->setAlias($row->display_name);
+
+        if ($node instanceof ServiceNode) {
+            $node->setHostAlias($row->host_display_name);
+        }
+    }
+}
-- 
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