FileEntityHandler.php in Acquia Content Hub 8.2

Namespace

Drupal\acquia_contenthub\EventSubscriber\Cdf

File

src/EventSubscriber/Cdf/FileEntityHandler.php

<?php

namespace Drupal\acquia_contenthub\EventSubscriber\Cdf;

use Drupal\acquia_contenthub\AcquiaContentHubEvents;
use Drupal\acquia_contenthub\Event\CreateCdfEntityEvent;
use Drupal\acquia_contenthub\Event\ParseCdfEntityEvent;
use Drupal\acquia_contenthub\Plugin\FileSchemeHandler\FileSchemeHandlerManagerInterface;
use Drupal\Core\Language\LanguageInterface;
use Drupal\Core\Logger\LoggerChannelFactoryInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * Manipulates file content entity CDF representation to better support files.
 */
class FileEntityHandler implements EventSubscriberInterface {

  /**
   * The file scheme handler manager.
   *
   * @var \Drupal\acquia_contenthub\Plugin\FileSchemeHandler\FileSchemeHandlerManagerInterface
   */
  protected $manager;

  /**
   * The acquia_contenthub logger channel.
   *
   * @var \Drupal\Core\Logger\LoggerChannelInterface
   */
  protected $channel;

  /**
   * FileEntityHandler constructor.
   *
   * @param \Drupal\acquia_contenthub\Plugin\FileSchemeHandler\FileSchemeHandlerManagerInterface $manager
   *   File scheme handler manager.
   * @param \Drupal\Core\Logger\LoggerChannelFactoryInterface $logger_factory
   *   The logger channel factory.
   */
  public function __construct(FileSchemeHandlerManagerInterface $manager, LoggerChannelFactoryInterface $logger_factory) {
    $this->manager = $manager;
    $this->channel = $logger_factory
      ->get('acquia_contenthub');
  }

  /**
   * {@inheritdoc}
   */
  public static function getSubscribedEvents() {
    $events[AcquiaContentHubEvents::CREATE_CDF_OBJECT][] = [
      'onCreateCdf',
      90,
    ];
    $events[AcquiaContentHubEvents::PARSE_CDF][] = [
      'onParseCdf',
      110,
    ];
    return $events;
  }

  /**
   * Add attributes to file entity CDF representations.
   *
   * @param \Drupal\acquia_contenthub\Event\CreateCdfEntityEvent $event
   *   The create CDF entity event.
   */
  public function onCreateCdf(CreateCdfEntityEvent $event) {
    if ($event
      ->getEntity()
      ->getEntityTypeId() == 'file') {

      /** @var \Drupal\file\FileInterface $entity */
      $entity = $event
        ->getEntity();
      $handler = $this->manager
        ->getHandlerForFile($entity);
      $handler
        ->addAttributes($event
        ->getCdf($entity
        ->uuid()), $entity);
    }
  }

  /**
   * Parse CDF attributes to import files as necessary.
   *
   * @param \Drupal\acquia_contenthub\Event\ParseCdfEntityEvent $event
   *   The Parse CDF Entity Event.
   *
   * @throws \Drupal\Component\Plugin\Exception\PluginException
   */
  public function onParseCdf(ParseCdfEntityEvent $event) {
    $cdf = $event
      ->getCdf();
    $entity_type = $cdf
      ->getAttribute('entity_type');
    if ($entity_type && $entity_type
      ->getValue()[LanguageInterface::LANGCODE_NOT_SPECIFIED] !== 'file') {
      return;
    }
    if ($cdf
      ->getAttribute('file_scheme')) {
      $scheme = $cdf
        ->getAttribute('file_scheme')
        ->getValue()[LanguageInterface::LANGCODE_NOT_SPECIFIED];
      $handler = $this->manager
        ->createInstance($scheme);
      $handler
        ->getFile($cdf);
    }
    else {
      $label_attribute = $cdf
        ->getAttribute('label');
      $label = $label_attribute ? $label_attribute
        ->getValue()[LanguageInterface::LANGCODE_NOT_SPECIFIED] : '';
      $this->channel
        ->warning(sprintf('File %s does not have a scheme and therefore was not copied. This likely
      means that its scheme is remote, unsupported or that it should already exist within a module, theme or library in
      the subscriber.', $label));
    }
  }

}

Classes

Name	Description
FileEntityHandler	Manipulates file content entity CDF representation to better support files.