o11y-8.x-1.x-dev/modules/o11y_metrics/src/MetricsCollectorPluginManager.php

<?php

namespace Drupal\o11y_metrics;

use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Plugin\DefaultPluginManager;

/**
 * The metrics collector plugin manager.
 */
class MetricsCollectorPluginManager extends DefaultPluginManager {

  /**
   * Constructs a CollectorPluginManager object.
   *
   * @param \Traversable $namespaces
   *   An object that implements \Traversable which contains the root paths
   *   keyed by the corresponding namespace to look for plugin implementations.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   Cache backend instance to use.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler to invoke the alter hook with.
   */
  public function __construct(
    \Traversable $namespaces,
    CacheBackendInterface $cache_backend,
    ModuleHandlerInterface $module_handler
  ) {
    parent::__construct('Plugin/MetricsCollector', $namespaces, $module_handler, 'Drupal\o11y_metrics\Plugin\PluginMetricsCollectorInterface', 'Drupal\o11y_metrics\Annotation\MetricsCollector');
    $this->alterInfo('o11y_metrics_metrics_collector_info');
    $this->setCacheBackend($cache_backend, 'metrics_collectors');
  }

}