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<?php |
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namespace Innmind\ProvisionerBundle\EventListener; |
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use Innmind\ProvisionerBundle\Event\ProvisionAlertEvent; |
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use Innmind\ProvisionerBundle\Alert\AlerterInterface; |
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use Innmind\ProvisionerBundle\Alert\Alert; |
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use Innmind\ProvisionerBundle\Server\ServerInterface; |
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use Innmind\ProvisionerBundle\ProcessStatusHandler; |
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/** |
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* Alerts when new servers need to be run or the current server |
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* is no longer needed |
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*/ |
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class ProvisionAlertListener |
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{ |
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protected $alerters = []; |
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protected $cpuThreshold; |
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protected $loadAverageThreshold; |
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protected $server; |
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protected $processStatus; |
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/** |
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* Add a new alerter |
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* |
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* @param AlerterInterface $alerter |
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*/ |
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public function addAlerter(AlerterInterface $alerter) |
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{ |
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$this->alerters[] = $alerter; |
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} |
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/** |
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* Set the CPU thresholds |
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* |
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* @param int $min |
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* @param int $max |
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*/ |
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public function setCpuThresholds($min, $max) |
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{ |
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$this->cpuThreshold = [(int) $min, (int) $max]; |
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} |
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/** |
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* Set the load average thresholds |
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* |
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* @param float $min |
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* @param float $max |
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*/ |
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public function setLoadAverageThresholds($min, $max) |
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{ |
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$this->loadAverageThreshold = [(float) $min, (float) $max]; |
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} |
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/** |
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* Set the server helper |
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* |
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* @param ServerInterface $server |
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*/ |
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public function setServer(ServerInterface $server) |
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{ |
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$this->server = $server; |
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} |
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/** |
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* Set the process status handler |
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* |
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* @param ProcessStatusHandler $handler |
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*/ |
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public function setProcessStatusHandler(ProcessStatusHandler $handler) |
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{ |
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$this->processStatus = $handler; |
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} |
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/** |
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* Check if an alert needs to be fired |
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* |
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* @param ProvisionAlertEvent $event |
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*/ |
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public function handle(ProvisionAlertEvent $event) |
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{ |
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$leftOver = $event->getLeftOver(); |
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$cpuUsage = $this->server->getCpuUsage(); |
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$loadAverage = $this->server->getCurrentLoadAverage(); |
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$alert = new Alert(); |
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$alert |
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->setCommandName( |
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$event->getCommandName() |
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) |
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->setCommandInput( |
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$event->getCommandInput() |
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) |
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->setCpuUsage($cpuUsage) |
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->setLoadAverage($loadAverage) |
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->setRunningProcesses( |
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$this->processStatus->getProcessCount(sprintf( |
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'console %s', |
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(string) $event->getCommandInput() |
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)) |
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) |
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->setLeftOver($leftOver); |
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if ($leftOver === 0) { |
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View Code Duplication |
if ( |
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$cpuUsage <= $this->cpuThreshold[0] || |
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$loadAverage <= $this->loadAverageThreshold[0] |
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) { |
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$alert->setUnderUsed(); |
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} |
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} else if ($leftOver > 0) { |
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View Code Duplication |
if ( |
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$cpuUsage >= $this->cpuThreshold[1] || |
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$loadAverage >= $this->loadAverageThreshold[1] |
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) { |
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$alert->setOverUsed(); |
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} |
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} |
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if (!$alert->isUnderUsed() && !$alert->isOverUsed()) { |
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return; |
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} |
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foreach ($this->alerters as $alerter) { |
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$alerter->alert($alert); |
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} |
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} |
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} |
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Innmind /
ProvisionerBundle
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.