@RequestMapping(method = RequestMethod.POST)
@JsonView(Book.MinimalView.class)
public Book addBook(@Valid @RequestBody Book book) {
if (repository.exists(book.getIsbn())) {
throw new BookAlreadyExistsException();
}
return repository.save(book);
}
@RequestMapping(value = "/{isbn}", method = RequestMethod.PUT)
@JsonView(Book.MinimalView.class)
public Book updateBook(@PathVariable String isbn, @Valid @RequestBody Book book) {
Book existingBook = repository.findOne(isbn);
if (existingBook == null) {
throw new BookNotFoundException();
}
existingBook.setTitle(book.getTitle());
existingBook.setDescription(book.getDescription());
existingBook.setAuthors(book.getAuthors());
return repository.save(existingBook);
}