@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Long id = getId(req);
if (id == null) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
Movie movie;
try {
movie = gson.fromJson(req.getReader(), Movie.class);
} catch (Exception ignore) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
if (!isMovieValid(movie) || movie.getId() != null && !movie.getId().equals(id)) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
movie.setId(id);
Movie prevMovieVersion = service.updateMovie(movie);
if (prevMovieVersion == null) {
resp.setStatus(SC_NOT_FOUND);
}
}
@Override
protected void doDelete(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Long id = getId(req);
if (id == null) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
service.deleteMovieById(id);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Long id = getId(req);
if (id == null) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
Movie movie = service.getMovieById(id);
if (movie == null) {
resp.setStatus(SC_NOT_FOUND);
return;
}
resp.setContentType("application/json");
resp.setCharacterEncoding("UTF-8");
resp.getWriter().append(gson.toJson(movie));
}
@Override
protected void doPut(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Movie movie;
try {
movie = gson.fromJson(req.getReader(), Movie.class);
} catch (Exception ignore) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
if (!isMovieValid(movie) || movie.getId() != null) {
resp.setStatus(SC_BAD_REQUEST);
return;
}
Long id = service.addMovie(movie);
resp.setContentType("application/json");
resp.setCharacterEncoding("UTF-8");
JsonWriter jsonWriter = gson.newJsonWriter(resp.getWriter());
jsonWriter.beginObject().name("id").value(id).endObject();
jsonWriter.close();
}