--- /dev/null
+<?php
+
+namespace Drupal\comment\Plugin\migrate\destination;
+
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Field\FieldTypePluginManagerInterface;
+use Drupal\Core\State\StateInterface;
+use Drupal\migrate\Plugin\MigrationInterface;
+use Drupal\migrate\Plugin\migrate\destination\EntityContentBase;
+use Drupal\migrate\Row;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * @MigrateDestination(
+ * id = "entity:comment"
+ * )
+ */
+class EntityComment extends EntityContentBase {
+
+ /**
+ * The state storage object.
+ *
+ * @var \Drupal\Core\State\StateInterface
+ */
+ protected $state;
+
+ /**
+ * An array of entity IDs for the 'commented entity' keyed by entity type.
+ *
+ * @var array
+ */
+ protected $stubCommentedEntityIds;
+
+ /**
+ * Builds an comment entity destination.
+ *
+ * @param array $configuration
+ * A configuration array containing information about the plugin instance.
+ * @param string $plugin_id
+ * The plugin_id for the plugin instance.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param MigrationInterface $migration
+ * The migration.
+ * @param EntityStorageInterface $storage
+ * The storage for this entity type.
+ * @param array $bundles
+ * The list of bundles this entity type has.
+ * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+ * The entity manager service.
+ * @param \Drupal\Core\Field\FieldTypePluginManagerInterface $field_type_manager
+ * The field type plugin manager service.
+ * @param \Drupal\Core\State\StateInterface $state
+ * The state storage object.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, EntityStorageInterface $storage, array $bundles, EntityManagerInterface $entity_manager, FieldTypePluginManagerInterface $field_type_manager, StateInterface $state) {
+ parent::__construct($configuration, $plugin_id, $plugin_definition, $migration, $storage, $bundles, $entity_manager, $field_type_manager);
+ $this->state = $state;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration = NULL) {
+ $entity_type = static::getEntityTypeId($plugin_id);
+ return new static(
+ $configuration,
+ $plugin_id,
+ $plugin_definition,
+ $migration,
+ $container->get('entity.manager')->getStorage($entity_type),
+ array_keys($container->get('entity.manager')->getBundleInfo($entity_type)),
+ $container->get('entity.manager'),
+ $container->get('plugin.manager.field.field_type'),
+ $container->get('state')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function import(Row $row, array $old_destination_id_values = []) {
+ if ($row->isStub() && ($state = $this->state->get('comment.maintain_entity_statistics', 0))) {
+ $this->state->set('comment.maintain_entity_statistics', 0);
+ }
+ $return = parent::import($row, $old_destination_id_values);
+ if ($row->isStub() && $state) {
+ $this->state->set('comment.maintain_entity_statistics', $state);
+ }
+ return $return;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function processStubRow(Row $row) {
+ parent::processStubRow($row);
+ // Neither uid nor name is required in itself, but it is required to set one
+ // of them.
+ $row->setDestinationProperty('name', 'anonymous_stub');
+ }
+
+}