// req: 24.2
public void deleteMessageFromFolder(Message message, Folder folder) {
Assert.notNull(message);
Assert.isTrue(message.getId() != 0);
Assert.notNull(folder);
Assert.isTrue(folder.getId() != 0);
Assert.isTrue(
folder.getActor().equals(actorService.findByPrincipal()),
"Only the owner of the folder can delete a message");
folderService.removeMessage(folder, message);
}
// req: 24.1
public Collection<Message> findAllByFolder(Folder folder) {
Assert.notNull(folder);
Assert.isTrue(
folder.getActor().equals(actorService.findByPrincipal()),
"Only the owner of the folder can display them");
Collection<Message> result;
result = messageRepository.findAllByFolderId(folder.getId());
return result;
}