gistfile1.java

@Path("/person")
@Produces(MediaType.APPLICATION_JSON)
public class PersonResource {

    final private static Logger LOGGER = LoggerFactory.getLogger(PersonResource.class);

    ArrayList<PersonData> data = new ArrayList<>();

    public static class PersonDAO extends OClassDAO {
        @Override
        public String getClassName() {
            return "Person";
        }
    }

    private Projection personUpdateData = new Projection()
            .add("name")
            .add("birthday")
            .add("died")
            .add("avatarURL")
            .child("movies", movies -> movies.add("title"))
            .add("roles");

    private Projection personData = personUpdateData.copy()
            .add("id")
            .child("movies", movies -> movies.add("id"));

    private KeyValueCoding mapKVC = personUpdateData.makeKeyValueCoding(KVC.get(Map.class));

    @GET
    public DataTablesResponse index(
            @QueryParam("draw") int id,
            @QueryParam("start") int start,
            @QueryParam("length") int length) {
        LOGGER.trace("index");

        try (PersonDAO dao = new PersonDAO()) {
            Object [] data = dao.all(personData).map(record -> {
                if (record.get("roles") == null) {
                    record.put("roles", new Object[]{});
                }
                if (record.get("movies") == null) {
                    record.put("movies", new Object[]{});
                }
                return record;
            }).toArray();
            return new DataTablesResponse(id, data);
        }
    }

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    public void create(Map<String, Object> person) {
        LOGGER.trace("create");
        try (PersonDAO dao = new PersonDAO()) {
            dao.save(new Record(data, mapKVC));
        }
    }

    @PUT
    @Path("/{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public void update(@PathParam("id") EntityId id, Map<String, Object> data) {
        LOGGER.trace("update: {}", id);
        try (PersonDAO dao = new PersonDAO()) {
            data.put("id", id);
            dao.save(new Record(data, mapKVC));
        }
    }
}