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|
<?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\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;
Benchmark::measure(sprintf(
'Retrieving states for business process %s using Icinga DB backend',
$config->getName()
));
$hosts = $config->listInvolvedHostNames();
if (empty($hosts)) {
return $this;
}
$queryHost = Host::on($this->backend)->with('state');
IcingaDbObject::applyIcingaDbRestrictions($queryHost);
$queryHost->filter(Filter::equal('host.name', $hosts));
$hostObject = $queryHost->getModel()->getTableName();
Benchmark::measure('Retrieved states for ' . $queryHost->count() . ' hosts in ' . $config->getName());
$queryService = Service::on($this->backend)->with([
'state',
'host',
'host.state'
]);
$queryService->filter(Filter::equal('host.name', $hosts));
IcingaDbObject::applyIcingaDbRestrictions($queryService);
Benchmark::measure('Retrieved states for ' . $queryService->count() . ' services in ' . $config->getName());
$configs = $config->listInvolvedConfigs();
$serviceObject = $queryService->getModel()->getTableName();
foreach ($configs as $cfg) {
foreach ($queryService as $row) {
$this->handleDbRow($row, $cfg, $serviceObject);
}
foreach ($queryHost as $row) {
$this->handleDbRow($row, $cfg, $hostObject);
}
}
Benchmark::measure('Got states for business process ' . $config->getName());
return $this;
}
protected function handleDbRow($row, BpConfig $config, $objectName)
{
if ($objectName === 'service') {
$key = $row->host->name . ';' . $row->name;
} else {
$key = $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->state->hard_state !== null) {
$node->setState($row->state->hard_state)->setMissing(false);
}
} else {
if ($row->state->soft_state !== null) {
$node->setState($row->state->soft_state)->setMissing(false);
}
}
if ($row->state->last_state_change !== null) {
$node->setLastStateChange($row->state->last_state_change/1000);
}
if ($row->state->in_downtime) {
$node->setDowntime(true);
}
if ($row->state->is_acknowledged) {
$node->setAck(true);
}
$node->setAlias($row->display_name);
if ($node instanceof ServiceNode) {
$node->setHostAlias($row->host->display_name);
}
}
}
|
