Issue #1818568 by Berdir, das-peter: Convert files to the new Entity Field API.

core/includes/file.inc

@@ -1156,22 +1156,22 @@ function file_save_upload($form_field_name, $validators = array(), $destination
     if (!empty($extensions)) {
       // Munge the filename to protect against possible malicious extension
       // hiding within an unknown file type (ie: filename.html.foo).
-      $file->filename = file_munge_filename($file->filename, $extensions);
+      $file->setFilename(file_munge_filename($file->getFilename(), $extensions));
     }
 
     // Rename potentially executable files, to help prevent exploits (i.e. will
     // rename filename.php.foo and filename.php to filename.php.foo.txt and
     // filename.php.txt, respectively). Don't rename if 'allow_insecure_uploads'
     // evaluates to TRUE.
-    if (!config('system.file')->get('allow_insecure_uploads') && preg_match('/\.(php|pl|py|cgi|asp|js)(\.|$)/i', $file->filename) && (substr($file->filename, -4) != '.txt')) {
-      $file->filemime = 'text/plain';
-      $file->uri .= '.txt';
-      $file->filename .= '.txt';
+    if (!config('system.file')->get('allow_insecure_uploads') && preg_match('/\.(php|pl|py|cgi|asp|js)(\.|$)/i', $file->getFilename()) && (substr($file->getFilename(), -4) != '.txt')) {
+      $file->setMimeType('text/plain');
+      $file->setFileUri($file->getFileUri() . '.txt');
+      $file->setFilename($file->getFilename() . '.txt');
       // The .txt extension may not be in the allowed list of extensions. We have
       // to add it here or else the file upload will fail.
       if (!empty($extensions)) {
         $validators['file_validate_extensions'][0] .= ' txt';
-        drupal_set_message(t('For security reasons, your upload has been renamed to %filename.', array('%filename' => $file->filename)));
+        drupal_set_message(t('For security reasons, your upload has been renamed to %filename.', array('%filename' => $file->getFilename())));
       }
     }
 
@@ -1193,7 +1193,7 @@ function file_save_upload($form_field_name, $validators = array(), $destination
     if (substr($destination, -1) != '/') {
       $destination .= '/';
     }
-    $file->destination = file_destination($destination . $file->filename, $replace);
+    $file->destination = file_destination($destination . $file->getFilename(), $replace);
     // If file_destination() returns FALSE then $replace === FILE_EXISTS_ERROR and
     // there's an existing file so we need to bail.
     if ($file->destination === FALSE) {
@@ -1210,7 +1210,7 @@ function file_save_upload($form_field_name, $validators = array(), $destination
 
     // Check for errors.
     if (!empty($errors)) {
-      $message = t('The specified file %name could not be uploaded.', array('%name' => $file->filename));
+      $message = t('The specified file %name could not be uploaded.', array('%name' => $file->getFilename()));
       if (count($errors) > 1) {
         $message .= theme('item_list', array('items' => $errors));
       }
@@ -1226,7 +1226,7 @@ function file_save_upload($form_field_name, $validators = array(), $destination
     // directory. This overcomes open_basedir restrictions for future file
     // operations.
     $file->uri = $file->destination;
-    if (!drupal_move_uploaded_file($uploaded_files['files']['tmp_name'][$form_field_name][$i], $file->uri)) {
+    if (!drupal_move_uploaded_file($uploaded_files['files']['tmp_name'][$form_field_name][$i], $file->getFileUri())) {
       form_set_error($form_field_name, t('File upload error. Could not move uploaded file.'));
       watchdog('file', 'Upload error. Could not move uploaded file %file to destination %destination.', array('%file' => $file->filename, '%destination' => $file->uri));
       $files[$i] = FALSE;
@@ -1234,14 +1234,14 @@ function file_save_upload($form_field_name, $validators = array(), $destination
     }
 
     // Set the permissions on the new file.
-    drupal_chmod($file->uri);
+    drupal_chmod($file->getFileUri());
 
     // If we are replacing an existing file re-use its database record.
     if ($replace == FILE_EXISTS_REPLACE) {
-      $existing_files = entity_load_multiple_by_properties('file', array('uri' => $file->uri));
+      $existing_files = entity_load_multiple_by_properties('file', array('uri' => $file->getFileUri()));
       if (count($existing_files)) {
         $existing = reset($existing_files);
-        $file->fid = $existing->fid;
+        $file->fid = $existing->id();
       }
     }
 

core/modules/aggregator/lib/Drupal/aggregator/Form/OpmlFeedAdd.php

@@ -157,7 +157,7 @@ public function submitForm(array &$form, array &$form_state) {
     $data = '';
     $validators = array('file_validate_extensions' => array('opml xml'));
     if ($file = file_save_upload('upload', $validators, FALSE, 0)) {
-      $data = file_get_contents($file->uri);
+      $data = file_get_contents($file->getFileUri());
     }
     else {
       // @todo Move this to a fetcher implementation.

core/modules/file/file.api.php

@@ -49,7 +49,7 @@ function hook_file_load($files) {
  * This hook lets modules perform additional validation on files. They're able
  * to report a failure by returning one or more error messages.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file entity being validated.
  * @return
  *   An array of error messages. If there are no problems with the file return
@@ -57,13 +57,13 @@ function hook_file_load($files) {
  *
  * @see file_validate()
  */
-function hook_file_validate(Drupal\file\File $file) {
+function hook_file_validate(Drupal\file\FileInterface $file) {
   $errors = array();
 
-  if (empty($file->filename)) {
+  if (!$file->getFilename()) {
     $errors[] = t("The file's name is empty. Please give a name to the file.");
   }
-  if (strlen($file->filename) > 255) {
+  if (strlen($file->getFilename()) > 255) {
     $errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again.");
   }
 
@@ -77,10 +77,10 @@ function hook_file_validate(Drupal\file\File $file) {
  * doesn't distinguish between files created as a result of a copy or those
  * created by an upload.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file entity that is about to be created or updated.
  */
-function hook_file_presave(Drupal\file\File $file) {
+function hook_file_presave(Drupal\file\FileInterface $file) {
   // Change the file timestamp to an hour prior.
   $file->timestamp -= 3600;
 }
@@ -92,10 +92,10 @@ function hook_file_presave(Drupal\file\File $file) {
  * doesn't distinguish between files created as a result of a copy or those
  * created by an upload.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file that has been added.
  */
-function hook_file_insert(Drupal\file\File $file) {
+function hook_file_insert(Drupal\file\FileInterface $file) {
   // Add a message to the log, if the file is a jpg
   $validate = file_validate_extensions($file, 'jpg');
   if (empty($validate)) {
@@ -108,60 +108,57 @@ function hook_file_insert(Drupal\file\File $file) {
  *
  * This hook is called when an existing file is saved.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file that has just been updated.
  */
-function hook_file_update(Drupal\file\File $file) {
-  $file_user = user_load($file->uid);
+function hook_file_update(Drupal\file\FileInterface $file) {
   // Make sure that the file name starts with the owner's user name.
-  if (strpos($file->filename, $file_user->name) !== 0) {
-    $old_filename = $file->filename;
-    $file->filename = $file_user->name . '_' . $file->filename;
+  if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
+    $old_filename = $file->getFilename();
+    $file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
     $file->save();
 
-    watchdog('file', t('%source has been renamed to %destination', array('%source' => $old_filename, '%destination' => $file->filename)));
+    watchdog('file', t('%source has been renamed to %destination', array('%source' => $old_filename, '%destination' => $file->getFilename())));
   }
 }
 
 /**
  * Respond to a file that has been copied.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The newly copied file entity.
- * @param Drupal\file\File $source
+ * @param \Drupal\file\FileInterface $source
  *   The original file before the copy.
  *
  * @see file_copy()
  */
-function hook_file_copy(Drupal\file\File $file, Drupal\file\File $source) {
-  $file_user = user_load($file->uid);
+function hook_file_copy(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
   // Make sure that the file name starts with the owner's user name.
-  if (strpos($file->filename, $file_user->name) !== 0) {
-    $file->filename = $file_user->name . '_' . $file->filename;
+  if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
+    $file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
     $file->save();
 
-    watchdog('file', t('Copied file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->filename)));
+    watchdog('file', t('Copied file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename())));
   }
 }
 
 /**
  * Respond to a file that has been moved.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The updated file entity after the move.
- * @param Drupal\file\File $source
+ * @param \Drupal\file\FileInterface $source
  *   The original file entity before the move.
  *
  * @see file_move()
  */
-function hook_file_move(Drupal\file\File $file, Drupal\file\File $source) {
-  $file_user = user_load($file->uid);
+function hook_file_move(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
   // Make sure that the file name starts with the owner's user name.
-  if (strpos($file->filename, $file_user->name) !== 0) {
-    $file->filename = $file_user->name . '_' . $file->filename;
+  if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
+    $file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
     $file->save();
 
-    watchdog('file', t('Moved file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->filename)));
+    watchdog('file', t('Moved file %source has been renamed to %destination', array('%source' => $source->filename, '%destination' => $file->getFilename())));
   }
 }
 
@@ -171,16 +168,16 @@ function hook_file_move(Drupal\file\File $file, Drupal\file\File $source) {
  * This hook is invoked when deleting a file before the file is removed from the
  * filesystem and before its records are removed from the database.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file that is about to be deleted.
  *
  * @see hook_file_delete()
  * @see Drupal\file\FileStorageController::delete()
  * @see upload_file_delete()
  */
-function hook_file_predelete(Drupal\file\File $file) {
+function hook_file_predelete(Drupal\file\FileInterface $file) {
   // Delete all information associated with the file.
-  db_delete('upload')->condition('fid', $file->fid)->execute();
+  db_delete('upload')->condition('fid', $file->id())->execute();
 }
 
 /**
@@ -189,15 +186,15 @@ function hook_file_predelete(Drupal\file\File $file) {
  * This hook is invoked after the file has been removed from
  * the filesystem and after its records have been removed from the database.
  *
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file that has just been deleted.
  *
  * @see hook_file_predelete()
  * @see Drupal\file\FileStorageController::delete()
  */
-function hook_file_delete(Drupal\file\File $file) {
+function hook_file_delete(Drupal\file\FileInterface $file) {
   // Delete all information associated with the file.
-  db_delete('upload')->condition('fid', $file->fid)->execute();
+  db_delete('upload')->condition('fid', $file->id())->execute();
 }
 
 /**
@@ -209,9 +206,9 @@ function hook_file_delete(Drupal\file\File $file) {
  *
  * @param $field
  *   The field to which the file belongs.
- * @param Drupal\Core\Entity\EntityInterface $entity
+ * @param \Drupal\Core\Entity\EntityInterface $entity
  *   The entity which references the file.
- * @param Drupal\file\File $file
+ * @param \Drupal\file\FileInterface $file
  *   The file entity that is being requested.
  *
  * @return
@@ -221,7 +218,7 @@ function hook_file_delete(Drupal\file\File $file) {
  *
  * @see hook_field_access().
  */
-function hook_file_download_access($field, Drupal\Core\Entity\EntityInterface $entity, Drupal\file\File $file) {
+function hook_file_download_access($field, Drupal\Core\Entity\EntityInterface $entity, Drupal\file\FileInterface $file) {
   if ($entity->entityType() == 'node') {
     return node_access('view', $entity);
   }

core/modules/file/file.field.inc

@@ -211,7 +211,7 @@ function file_field_prepare_view($entity_type, $entities, $field, $instances, $l
         $items[$id][$delta] = NULL;
       }
       else {
-        $items[$id][$delta] = array_merge($item, (array) $files[$item['fid']]);
+        $items[$id][$delta]['entity'] = $files[$item['fid']];
       }
     }
   }
@@ -419,7 +419,7 @@ function file_field_widget_multiple_count_validate($element, &$form_state, $form
     $removed_names = array();
     foreach ($removed_files as $fid) {
       $file = file_load($fid);
-      $removed_names[] = $file->filename;
+      $removed_names[] = $file->getFilename();
     }
     drupal_set_message(
       t(
@@ -654,7 +654,7 @@ function theme_file_widget($variables) {
   if (!empty($element['fids']['#value'])) {
     // Add the file size after the file name.
     $file = reset($element['#files']);
-    $element['file_' . $file->fid]['filename']['#markup'] .= ' <span class="file-size">(' . format_size($file->filesize) . ')</span> ';
+    $element['file_' . $file->id()]['filename']['#markup'] .= ' <span class="file-size">(' . format_size($file->getSize()) . ')</span> ';
   }
   $output .= drupal_render_children($element);
   $output .= '</div>';
@@ -861,8 +861,8 @@ function theme_file_formatter_table($variables) {
   $rows = array();
   foreach ($variables['items'] as $delta => $item) {
     $rows[] = array(
-      theme('file_link', array('file' => (object) $item)),
-      format_size($item['filesize']),
+      theme('file_link', array('file' => $item['entity'])),
+      format_size($item['entity']->getSize()),
     );
   }
 

core/modules/file/lib/Drupal/file/FileInterface.php

@@ -8,10 +8,130 @@
 namespace Drupal\file;
 
 use Drupal\Core\Entity\ContentEntityInterface;
+use Drupal\user\UserInterface;
 
 /**
- * Provides an interface defining a file entity.
+ * Defines getter and setter methods for file entity base fields.
  */
 interface FileInterface extends ContentEntityInterface {
 
+  /**
+   * Returns the name of the file.
+   *
+   * This may differ from the basename of the URI if the file is renamed to
+   * avoid overwriting an existing file.
+   *
+   * @return string
+   *   Name of the file.
+   */
+  public function getFilename();
+
+  /**
+   * Sets the name of the file.
+   *
+   * @param string $filename
+   *   The file name that corresponds to this file. May differ from the basename
+   *   of the URI and changing the filename does not change the URI.
+   */
+  public function setFilename($filename);
+
+  /**
+   * Returns the URI of the file.
+   *
+   * @return string
+   *   The URI of the file, e.g. public://directory/file.jpg.
+   */
+  public function getFileUri();
+
+  /**
+   * Sets the URI of the file.
+   *
+   * @param string $uri
+   *   The URI of the file, e.g. public://directory/file.jpg. Does not change
+   *   the location of the file.
+   */
+  public function setFileUri($uri);
+
+  /**
+   * Returns the MIME type of the file.
+   *
+   * @return string
+   *   The MIME type of the file, e.g. image/jpeg or text/xml.
+   */
+  public function getMimeType();
+
+  /**
+   * Sets the MIME type of the file.
+   *
+   * @param string $mime
+   *   The MIME type of the file, e.g. image/jpeg or text/xml.
+   */
+  public function setMimeType($mime);
+
+  /**
+   * Returns the size of the file.
+   *
+   * @return string
+   *   The size of the file in bytes.
+   */
+  public function getSize();
+
+  /**
+   * Sets the size of the file.
+   *
+   * @param int $size
+   *   The size of the file in bytes.
+   */
+  public function setSize($size);
+
+  /**
+   * Returns TRUE if the file is permanent.
+   *
+   * @return bool
+   *   TRUE if the file status is permanent.
+   */
+  public function isPermanent();
+
+  /**
+   * Returns TRUE if the file is temporary.
+   *
+   * @return bool
+   *   TRUE if the file status is temporary.
+   */
+  public function isTemporary();
+
+  /**
+   * Sets the file status to permanent.
+   */
+  public function setPermanent();
+
+  /**
+   * Sets the file status to temporary.
+   */
+  public function setTemporary();
+
+  /**
+   * Returns the timestamp when the file was created.
+   *
+   * @return int
+   *   Creation timestamp of the file.
+   */
+  public function getChangedTime();
+
+  /**
+   * Returns the user that owns this file.
+   *
+   * @return \Drupal\user\UserInterface
+   *   The user that owns the file.
+   */
+  public function getOwner();
+
+  /**
+   * Sets the user that owns this file.
+   *
+   * @param \Drupal\user\UserInterface $user
+   *   The user that owns the file.
+   */
+  public function setOwner(UserInterface $user);
+
 }

core/modules/file/lib/Drupal/file/FileStorageController.php

@@ -7,14 +7,14 @@
 
 namespace Drupal\file;
 
-use Drupal\Core\Entity\DatabaseStorageController;
+use Drupal\Core\Entity\DatabaseStorageControllerNG;
 use Drupal\Core\Entity\EntityInterface;
 use Drupal\Core\Language\Language;
 
 /**
  * File storage controller for files.
  */
-class FileStorageController extends DatabaseStorageController {
+class FileStorageController extends DatabaseStorageControllerNG {
 
   /**
    * Overrides Drupal\Core\Entity\DatabaseStorageController::create().
@@ -37,8 +37,8 @@ public function create(array $values) {
    */
   protected function preSave(EntityInterface $entity) {
     $entity->timestamp = REQUEST_TIME;
-    $entity->filesize = filesize($entity->uri);
-    if (!isset($entity->langcode)) {
+    $entity->setSize(filesize($entity->getFileUri()));
+    if (!$entity->langcode->value) {
       // Default the file's language code to none, because files are language
       // neutral more often than language dependent. Until we have better
       // flexible settings.
@@ -55,7 +55,7 @@ public function preDelete($entities) {
       // Delete the actual file. Failures due to invalid files and files that
       // were already deleted are logged to watchdog but ignored, the
       // corresponding file entity will be deleted.
-      file_unmanaged_delete($entity->uri);
+      file_unmanaged_delete($entity->getFileUri());
     }
     // Delete corresponding file usage entries.
     db_delete('file_usage')
@@ -100,4 +100,64 @@ public function retrieveTemporaryFiles() {
       ':timestamp' => REQUEST_TIME - DRUPAL_MAXIMUM_TEMP_FILE_AGE
     ));
   }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function baseFieldDefinitions() {
+    $properties['fid'] = array(
+      'label' => t('File ID'),
+      'description' => t('The file ID.'),
+      'type' => 'integer_field',
+      'read-only' => TRUE,
+    );
+    $properties['uuid'] = array(
+      'label' => t('UUID'),
+      'description' => t('The file UUID.'),
+      'type' => 'string_field',
+      'read-only' => TRUE,
+    );
+    $properties['langcode'] = array(
+      'label' => t('Language code'),
+      'description' => t('The file language code.'),
+      'type' => 'language_field',
+    );
+    $properties['uid'] = array(
+      'label' => t('User ID'),
+      'description' => t('The user ID of the file.'),
+      'type' => 'entity_reference_field',
+      'settings' => array('target_type' => 'user'),
+    );
+    $properties['filename'] = array(
+      'label' => t('Filename'),
+      'description' => t('Name of the file with no path components.'),
+      'type' => 'string_field',
+    );
+    $properties['uri'] = array(
+      'label' => t('URI'),
+      'description' => t('The URI to access the file (either local or remote).'),
+      'type' => 'string_field',
+    );
+    $properties['filemime'] = array(
+      'label' => t('File MIME type'),
+      'description' => t("The file's MIME type."),
+      'type' => 'string_field',
+    );
+    $properties['filesize'] = array(
+      'label' => t('File size'),
+      'description' => t('The size of the file in bytes.'),
+      'type' => 'boolean_field',
+    );
+    $properties['status'] = array(
+      'label' => t('Status'),
+      'description' => t('The status of the file, temporary (0) and permanent (1)'),
+      'type' => 'integer_field',
+    );
+    $properties['timestamp'] = array(
+      'label' => t('Created'),
+      'description' => t('The time that the node was created.'),
+      'type' => 'integer_field',
+    );
+    return $properties;
+  }
 }

core/modules/file/lib/Drupal/file/FileUsage/DatabaseFileUsageBackend.php

@@ -51,7 +51,7 @@ public function __construct(Connection $connection, $table = 'file_usage') {
   public function add(File $file, $module, $type, $id, $count = 1) {
     $this->connection->merge($this->tableName)
       ->key(array(
-        'fid' => $file->fid,
+        'fid' => $file->id(),
         'module' => $module,
         'type' => $type,
         'id' => $id,
@@ -70,7 +70,7 @@ public function delete(File $file, $module, $type = NULL, $id = NULL, $count = 1
     // Delete rows that have a exact or less value to prevent empty rows.
     $query = $this->connection->delete($this->tableName)
       ->condition('module', $module)
-      ->condition('fid', $file->fid);
+      ->condition('fid', $file->id());
     if ($type && $id) {
       $query
         ->condition('type', $type)
@@ -85,7 +85,7 @@ public function delete(File $file, $module, $type = NULL, $id = NULL, $count = 1
     if (!$result && $count > 0) {
       $query = $this->connection->update($this->tableName)
         ->condition('module', $module)
-        ->condition('fid', $file->fid);
+        ->condition('fid', $file->id());
       if ($type && $id) {
         $query
           ->condition('type', $type)
@@ -104,7 +104,7 @@ public function delete(File $file, $module, $type = NULL, $id = NULL, $count = 1
   public function listUsage(File $file) {
     $result = $this->connection->select($this->tableName, 'f')
       ->fields('f', array('module', 'type', 'id', 'count'))
-      ->condition('fid', $file->fid)
+      ->condition('fid', $file->id())
       ->condition('count', 0, '>')
       ->execute();
     $references = array();

core/modules/file/lib/Drupal/file/FileUsage/FileUsageBase.php

@@ -19,8 +19,8 @@ abstract class FileUsageBase implements FileUsageInterface {
    */
   public function add(File $file, $module, $type, $id, $count = 1) {
     // Make sure that a used file is permament.
-    if ($file->status != FILE_STATUS_PERMANENT) {
-      $file->status = FILE_STATUS_PERMANENT;
+    if (!$file->isPermanent()) {
+      $file->setPermanent();
       $file->save();
     }
   }
@@ -33,7 +33,7 @@ public function delete(File $file, $module, $type = NULL, $id = NULL, $count = 1
     // which result in a delete through system_cron().
     $usage = file_usage()->listUsage($file);
     if (empty($usage)) {
-      $file->status = 0;
+      $file->setTemporary();
       $file->save();
     }
   }

core/modules/file/lib/Drupal/file/Plugin/Core/Entity/File.php

@@ -7,11 +7,12 @@
 
 namespace Drupal\file\Plugin\Core\Entity;
 
-use Drupal\Core\Entity\Entity;
+use Drupal\Core\Entity\EntityNG;
 use Drupal\Core\Entity\Annotation\EntityType;
 use Drupal\Core\Annotation\Translation;
 use Drupal\Core\Language\Language;
 use Drupal\file\FileInterface;
+use Drupal\user\UserInterface;
 
 /**
  * Defines the file entity class.
@@ -32,90 +33,129 @@
  *   }
  * )
  */
-class File extends Entity implements FileInterface {
+class File extends EntityNG implements FileInterface {
 
   /**
-   * The file ID.
+   * The plain data values of the contained properties.
    *
-   * @var integer
+   * Define default values.
+   *
+   * @var array
    */
-  public $fid;
+  protected $values = array(
+    'langcode' => array(Language::LANGCODE_DEFAULT => array(0 => array('value' => Language::LANGCODE_NOT_SPECIFIED))),
+  );
 
   /**
-   * The file UUID.
-   *
-   * @var string
+   * {@inheritdoc}
    */
-  public $uuid;
+  public function id() {
+    return $this->get('fid')->value;
+  }
 
   /**
-   * The file language code.
-   *
-   * @var string
+   * {@inheritdoc}
    */
-  public $langcode = Language::LANGCODE_NOT_SPECIFIED;
+  public function getFilename() {
+    return $this->get('filename')->value;
+  }
 
   /**
-   * The uid of the user who is associated with the file.
-   *
-   * @var integer
+   * {@inheritdoc}
    */
-  public $uid;
+  public function setFilename($filename) {
+    $this->get('filename')->value = $filename;
+  }
 
   /**
-   * Name of the file with no path components.
-   *
-   * This may differ from the basename of the URI if the file is renamed to
-   * avoid overwriting an existing file.
-   *
-   * @var string