@Override
    public boolean load() {
        boolean result = super.load();
        result = result && this.parseDelayLevel();
        result = result && this.correctDelayOffset();
        return result;
    }
@Test
    public void testLoad() {
        ConcurrentMap<Integer, Long> offsetTable = scheduleMessageService.getOffsetTable();
        //offsetTable.put(0, 1L);
        offsetTable.put(1, 3L);
        offsetTable.put(2, 5L);
        scheduleMessageService.persist();

        ScheduleMessageService controlInstance = new ScheduleMessageService(brokerController);
        assertTrue(controlInstance.load());

        ConcurrentMap<Integer, Long> loaded = controlInstance.getOffsetTable();
        for (long offset : loaded.values()) {
            assertEquals(0, offset);
        }
    }