sports_league-8.x-1.x-dev/modules/sl_stats/src/Plugin/QueueWorker/StatsQueueWorker.php

<?php

namespace Drupal\sl_stats\Plugin\QueueWorker;

use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Lock\LockBackendInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Queue\QueueWorkerBase;
use Drupal\Core\Queue\RequeueException;
use Drupal\sl_stats\SLStatsComputer;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Manages stats in a queue.
 *
 * @QueueWorker(
 *   id = "sl_stats_worker",
 *   title = @Translation("SL Stats computer"),
 * )
 */
class StatsQueueWorker extends QueueWorkerBase implements ContainerFactoryPluginInterface {

  /**
   * The node storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $nodeStorage;

  /**
   * The stats computer.
   *
   * @var \Drupal\sl_stats\SLStatsComputer
   */
  protected $slStatsComputer;

  /**
   * The lock service.
   *
   * @var \Drupal\Core\Lock\LockBackendInterface
   */
  protected $lock;

  /**
   * StatsQueueWorker constructor.
   *
   * @param array $configuration
   *   The configuration.
   * @param string $plugin_id
   *   The plugin id.
   * @param mixed $plugin_definition
   *   The plugin definition.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\sl_stats\SLStatsComputer $sl_stats_computer
   *   The stats computer.
   * @param \Drupal\Core\Lock\LockBackendInterface $lock
   *   The lock.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager, SLStatsComputer $sl_stats_computer, LockBackendInterface $lock) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->nodeStorage = $entity_type_manager->getStorage('node');
    $this->slStatsComputer = $sl_stats_computer;
    $this->lock = $lock;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static(
      $configuration,
      $plugin_id,
      $plugin_definition,
      $container->get('entity_type.manager'),
      $container->get('sl_stats.computer'),
      $container->get('lock')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function processItem($data) {
    if ($this->lock->acquire('sl_stats_autostats_' . $data->nid)) {
      $status = $this->slStatsComputer->compute($data->nid);
      $this->lock->release('sl_stats_autostats_' . $data->nid);
      return $status;
    }
    else {
      throw new RequeueException();
    }
  }

}