FileNotExistsException example

  protected function prepareDestination($source, &$destination, $replace) {
    $original_source = $source;

    if (!file_exists($source)) {
      if (($realpath = $this->realpath($original_source)) !== FALSE) {
        $this->logger->error("File '%original_source' ('%realpath') could not be copied because it does not exist.", [
          '%original_source' => $original_source,
          '%realpath' => $realpath,
        ]);
        throw new FileNotExistsException("File '$original_source' ('$realpath') could not be copied because it does not exist.");
      }
      else {
        $this->logger->error("File '%original_source' could not be copied because it does not exist.", [
          '%original_source' => $original_source,
        ]);
        throw new FileNotExistsException("File '$original_source' could not be copied because it does not exist.");
      }
    }

    // Prepare the destination directory.     if ($this->prepareDirectory($destination)) {