private CommandProcessingResult createClientNote(final JsonCommand command) {
final Long resourceId = command.getClientId();
final Client client = this.clientRepository.findOneWithNotFoundDetection(resourceId);
if (client == null) { throw new ClientNotFoundException(resourceId); }
final Note newNote = Note.clientNoteFromJson(client, command);
this.noteRepository.save(newNote);
return new CommandProcessingResultBuilder() //