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<?php |
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declare(strict_types=1); |
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namespace Algatux\InfluxDbBundle\Events\Listeners; |
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use Algatux\InfluxDbBundle\Events\AbstractDeferredInfluxDbEvent; |
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use Algatux\InfluxDbBundle\Events\AbstractInfluxDbEvent; |
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use Algatux\InfluxDbBundle\Events\DeferredUdpEvent; |
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use Algatux\InfluxDbBundle\Events\UdpEvent; |
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use InfluxDB\Database; |
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use InfluxDB\Point; |
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use Symfony\Component\EventDispatcher\Event; |
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/** |
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* @internal |
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*/ |
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final class InfluxDbEventListener |
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{ |
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const STORAGE_KEY_UDP = 'udp'; |
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const STORAGE_KEY_HTTP = 'http'; |
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/** |
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* @var string |
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*/ |
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private $connection; |
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/** |
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* @var bool |
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*/ |
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private $isDefault; |
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/** |
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* @var Database |
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*/ |
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private $httpDatabase; |
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/** |
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* @var Database |
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*/ |
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private $udpDatabase; |
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/** |
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* @var array |
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*/ |
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private $storage; |
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/** |
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* @param string $connection |
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* @param bool $isDefault |
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* @param Database $httpDatabase |
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* @param Database $udpDatabase |
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*/ |
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public function __construct(string $connection, bool $isDefault, Database $httpDatabase, Database $udpDatabase = null) |
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{ |
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$this->connection = $connection; |
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$this->isDefault = $isDefault; |
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$this->httpDatabase = $httpDatabase; |
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$this->udpDatabase = $udpDatabase; |
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$this->initStorage(); |
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} |
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/** |
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* @param AbstractInfluxDbEvent $event |
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* |
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* @return bool |
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*/ |
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public function onPointsCollected(AbstractInfluxDbEvent $event): bool |
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{ |
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if (!$this->isConcerned($event)) { |
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return false; |
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} |
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if (!$this->udpDatabase && ($event instanceof UdpEvent || $event instanceof DeferredUdpEvent)) { |
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throw new \RuntimeException( |
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'No UDP connection available for database "'.$this->httpDatabase->getName().'". ' |
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.'You must enable it on the configuration to use it.' |
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); |
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} |
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$points = $event->getPoints(); |
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$precision = $event->getPrecision(); |
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if ($event instanceof AbstractDeferredInfluxDbEvent) { |
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$typeKey = $event instanceof DeferredUdpEvent ? static::STORAGE_KEY_UDP : static::STORAGE_KEY_HTTP; |
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$this->addPointsToStorage($typeKey, $precision, $points); |
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return true; |
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} |
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if ($event instanceof UdpEvent) { |
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$this->writeUdpPoints($points, $precision); |
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return true; |
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} |
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$this->writeHttpPoints($points, $precision); |
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return true; |
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} |
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/** |
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* @param Event $event |
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* |
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* @return bool |
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*/ |
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public function onKernelTerminate(Event $event): bool |
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{ |
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foreach ($this->storage[static::STORAGE_KEY_UDP] as $precision => $points) { |
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$this->writeUdpPoints($points, $precision); |
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} |
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foreach ($this->storage[static::STORAGE_KEY_HTTP] as $precision => $points) { |
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$this->writeHttpPoints($points, $precision); |
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} |
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// Reset the storage after writing points. |
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$this->initStorage(); |
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return true; |
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} |
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private function initStorage() |
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{ |
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$this->storage = [ |
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static::STORAGE_KEY_UDP => [], |
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static::STORAGE_KEY_HTTP => [], |
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]; |
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} |
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/** |
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* @param Point[] $points |
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* @param string $precision |
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*/ |
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private function writeUdpPoints(array $points, string $precision) |
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{ |
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$this->udpDatabase->writePoints($points, $precision); |
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} |
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/** |
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* @param Point[] $points |
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* @param string $precision |
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*/ |
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private function writeHttpPoints(array $points, string $precision) |
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{ |
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$this->httpDatabase->writePoints($points, $precision); |
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} |
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/** |
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* @param string $typeKey |
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* @param string $precision |
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* @param array $points |
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*/ |
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private function addPointsToStorage(string $typeKey, string $precision, array $points) |
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{ |
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if (array_key_exists($precision, $this->storage[$typeKey])) { |
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$this->storage[$typeKey][$precision] = array_merge($this->storage[$typeKey][$precision], $points); |
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return; |
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} |
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$this->storage[$typeKey][$precision] = $points; |
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} |
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/** |
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* @param AbstractInfluxDbEvent $event |
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* |
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* @return bool |
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*/ |
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private function isConcerned(AbstractInfluxDbEvent $event): bool |
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{ |
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return $this->connection === $event->getConnection() || is_null($event->getConnection()) && $this->isDefault; |
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} |
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} |
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Algatux /
influxdb-bundle
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.