@POST
public JsonObject saveBook(final JsonObject book) {
long id = System.nanoTime();
JsonObjectBuilder jsonObjectBuilder = Json.createObjectBuilder();
JsonObject newBook =
jsonObjectBuilder
.add("bookId", id)
.add("bookName", book.get("bookName"))
.add("publisher", book.get("publisher"))
.build();
BookResource.memoryBase.put(id, newBook);
return newBook;
}
