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-rw-r--r--library/Businessprocess/State/MonitoringState.php151
1 files changed, 151 insertions, 0 deletions
diff --git a/library/Businessprocess/State/MonitoringState.php b/library/Businessprocess/State/MonitoringState.php
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+++ b/library/Businessprocess/State/MonitoringState.php
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+<?php
+
+namespace Icinga\Module\Businessprocess\State;
+
+use Exception;
+use Icinga\Application\Benchmark;
+use Icinga\Data\Filter\Filter;
+use Icinga\Module\Businessprocess\BpConfig;
+use Icinga\Module\Businessprocess\ServiceNode;
+use Icinga\Module\Monitoring\Backend\MonitoringBackend;
+
+class MonitoringState
+{
+ /** @var BpConfig */
+ protected $config;
+
+ /** @var MonitoringBackend */
+ protected $backend;
+
+ private function __construct(BpConfig $config)
+ {
+ $this->config = $config;
+ $this->backend = $config->getBackend();
+ }
+
+ 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;
+
+ Benchmark::measure('Retrieving states for business process ' . $config->getName());
+ $backend = $this->backend;
+
+ if ($config->usesHardStates()) {
+ $hostStateColumn = 'host_hard_state';
+ $hostStateChangeColumn = 'host_last_hard_state_change';
+ $serviceStateColumn = 'service_hard_state';
+ $serviceStateChangeColumn = 'service_last_hard_state_change';
+ } else {
+ $hostStateColumn = 'host_state';
+ $hostStateChangeColumn = 'host_last_state_change';
+ $serviceStateColumn = 'service_state';
+ $serviceStateChangeColumn = 'service_last_state_change';
+ }
+
+ $hosts = $config->listInvolvedHostNames();
+ if (empty($hosts)) {
+ return $this;
+ }
+
+ $hostFilter = Filter::expression('host_name', '=', $hosts);
+
+ $hostStatus = $backend->select()->from('hostStatus', array(
+ 'hostname' => 'host_name',
+ 'last_state_change' => $hostStateChangeColumn,
+ 'in_downtime' => 'host_in_downtime',
+ 'ack' => 'host_acknowledged',
+ 'state' => $hostStateColumn,
+ 'display_name' => 'host_display_name'
+ ))->applyFilter($hostFilter)->getQuery()->fetchAll();
+
+ Benchmark::measure('Retrieved states for ' . count($hostStatus) . ' hosts in ' . $config->getName());
+
+ // NOTE: we intentionally filter by host_name ONLY
+ // Tests with host IN ... AND service IN shows longer query times
+ // while retrieving 1635 (in 5ms) vs. 1388 (in ~430ms) services
+ $serviceStatus = $backend->select()->from('serviceStatus', array(
+ 'hostname' => 'host_name',
+ 'service' => 'service_description',
+ 'last_state_change' => $serviceStateChangeColumn,
+ 'in_downtime' => 'service_in_downtime',
+ 'ack' => 'service_acknowledged',
+ 'state' => $serviceStateColumn,
+ 'display_name' => 'service_display_name',
+ 'host_display_name' => 'host_display_name'
+ ))->applyFilter($hostFilter)->getQuery()->fetchAll();
+
+ Benchmark::measure('Retrieved states for ' . count($serviceStatus) . ' services in ' . $config->getName());
+
+ $configs = $config->listInvolvedConfigs();
+ foreach ($configs as $cfg) {
+ foreach ($serviceStatus as $row) {
+ $this->handleDbRow($row, $cfg);
+ }
+ foreach ($hostStatus as $row) {
+ $this->handleDbRow($row, $cfg);
+ }
+ }
+
+ // TODO: Union, single query?
+ Benchmark::measure('Got states for business process ' . $config->getName());
+
+ return $this;
+ }
+
+ protected function handleDbRow($row, BpConfig $config)
+ {
+ $key = $row->hostname;
+ if (property_exists($row, 'service')) {
+ $key .= ';' . $row->service;
+ } else {
+ $key .= ';Hoststatus';
+ }
+
+ // We fetch more states than we need, so skip unknown ones
+ if (! $config->hasNode($key)) {
+ return;
+ }
+
+ $node = $config->getNode($key);
+
+ if ($row->state !== null) {
+ $node->setState($row->state)->setMissing(false);
+ }
+ if ($row->last_state_change !== null) {
+ $node->setLastStateChange($row->last_state_change);
+ }
+ if ((int) $row->in_downtime === 1) {
+ $node->setDowntime(true);
+ }
+ if ((int) $row->ack === 1) {
+ $node->setAck(true);
+ }
+
+ $node->setAlias($row->display_name);
+
+ if ($node instanceof ServiceNode) {
+ $node->setHostAlias($row->host_display_name);
+ }
+ }
+}