private enum Data {

                NORMAL(1511, 100, 1),
                OAK(1521, 200, 15);

                private int logId, exp, reqLevel;

                private Data(int logId, int exp, int reqLevel) {
                        this.logId = logId;
                        this.exp= exp;
                        this.reqLevel= reqLevel;
                }

                private static Map<Object, Data> data = new HashMap<>();

                static {
                        for (Data d : Data.values()) {
                                Data.data.put(d.getLogId(), d);
                        }
                }
        }