class EntityContentComplete

class EntityContentComplete extends EntityContentBase {
    use EntityFieldDefinitionTrait;
    
    /**
     * {@inheritdoc}
     */
    public function getIds() {
        $ids = [];
        $id_key = $this->getKey('id');
        $ids[$id_key] = $this->getDefinitionFromEntity($id_key);
        $revision_key = $this->getKey('revision');
        if ($revision_key) {
            $ids[$revision_key] = $this->getDefinitionFromEntity($revision_key);
        }
        $langcode_key = $this->getKey('langcode');
        if ($langcode_key) {
            $ids[$langcode_key] = $this->getDefinitionFromEntity($langcode_key);
        }
        return $ids;
    }
    
    /**
     * Gets the entity.
     *
     * @param \Drupal\migrate\Row $row
     *   The row object.
     * @param array $old_destination_id_values
     *   The old destination IDs.
     *
     * @return \Drupal\Core\Entity\EntityInterface
     *   The entity.
     */
    protected function getEntity(Row $row, array $old_destination_id_values) {
        $revision_id = $old_destination_id_values ? $old_destination_id_values[1] : $row->getDestinationProperty($this->getKey('revision'));
        // If we are re-running a migration with set revision IDs and the
        // destination revision ID already exists then do not create a new revision.
        $entity = NULL;
        if (!empty($revision_id)) {
            
            /** @var \Drupal\Core\Entity\RevisionableStorageInterface $storage */
            $storage = $this->storage;
            if ($entity = $storage->loadRevision($revision_id)) {
                $entity->setNewRevision(FALSE);
            }
        }
        if ($entity === NULL && ($entity_id = $row->getDestinationProperty($this->getKey('id'))) && ($entity = $this->storage
            ->load($entity_id))) {
            // We want to create a new entity. Set enforceIsNew() FALSE is  necessary
            // to properly save a new entity while setting the ID. Without it, the
            // system would see that the ID is already set and assume it is an update.
            $entity->enforceIsNew(FALSE);
            // Intentionally create a new revision. Setting new revision TRUE here may
            // not be necessary, it is done for clarity.
            $entity->setNewRevision(TRUE);
        }
        if ($entity === NULL) {
            // Attempt to set the bundle.
            if ($bundle = $this->getBundle($row)) {
                $row->setDestinationProperty($this->getKey('bundle'), $bundle);
            }
            // Stubs might need some required fields filled in.
            if ($row->isStub()) {
                $this->processStubRow($row);
            }
            $entity = $this->storage
                ->create($row->getDestination());
            $entity->enforceIsNew();
        }
        // We need to update the entity, so that the destination row IDs are
        // correct.
        $entity = $this->updateEntity($entity, $row);
        $entity->isDefaultRevision(TRUE);
        if ($entity instanceof EntityChangedInterface && $entity instanceof ContentEntityInterface) {
            // If we updated any untranslatable fields, update the timestamp for the
            // other translations.
            
            /** @var \Drupal\Core\Entity\ContentEntityInterface|\Drupal\Core\Entity\EntityChangedInterface $entity */
            foreach ($entity->getTranslationLanguages() as $langcode => $language) {
                // If we updated an untranslated field, then set the changed time for
                // for all translations to match the current row that we are saving.
                // In this context, getChangedTime() should return the value we just
                // set in the updateEntity() call above.
                if ($entity->getTranslation($langcode)
                    ->hasTranslationChanges()) {
                    $entity->getTranslation($langcode)
                        ->setChangedTime($entity->getChangedTime());
                }
            }
        }
        return $entity;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function updateEntity(EntityInterface $entity, Row $row) {
        $entity = parent::updateEntity($entity, $row);
        // Always set the rollback action to delete. This is because the parent
        // updateEntity will set the rollback action to preserve for the original
        // language row, which is needed for the classic node migrations.
        $this->setRollbackAction($row->getIdMap(), MigrateIdMapInterface::ROLLBACK_DELETE);
        return $entity;
    }
    
    /**
     * {@inheritdoc}
     */
    protected function save(ContentEntityInterface $entity, array $old_destination_id_values = []) {
        parent::save($entity, $old_destination_id_values);
        return [
            $entity->id(),
            $entity->getRevisionId(),
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function rollback(array $destination_identifier) {
        // We want to delete the entity and all the translations so use
        // Entity:rollback because EntityContentBase::rollback will not remove the
        // default translation.
        Entity::rollback($destination_identifier);
    }

}