dvf-2.x-dev/src/Plugin/VisualisationManager.php

<?php

namespace Drupal\dvf\Plugin;

use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Plugin\DefaultPluginManager;
use Psr\Log\LoggerInterface;

/**
 * Provides a Visualisation plugin manager.
 */
class VisualisationManager extends DefaultPluginManager implements VisualisationManagerInterface {

  /**
   * Constructs a new VisualisationManager.
   *
   * @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.
   * @param \Psr\Log\LoggerInterface $logger
   *   Instance of the logger object.
   */
  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, LoggerInterface $logger) {
    parent::__construct('Plugin/Visualisation', $namespaces, $module_handler, 'Drupal\dvf\Plugin\VisualisationInterface', 'Drupal\dvf\Annotation\Visualisation');
    $this->setCacheBackend($cache_backend, 'dvf_plugins_visualisation');
  }

}