@Test
  public void getUsefulTimestampFormat() {
    SushiAttribute rootAttribute4 = new SushiAttribute("Driver", SushiAttributeTypeEnum.STRING);
    SushiAttribute rootAttribute5 = new SushiAttribute("Location", SushiAttributeTypeEnum.STRING);

    List<SushiAttribute> attributes2 = Arrays.asList(rootAttribute4, rootAttribute5);
    SushiEventType eventType2 = new SushiEventType("obuEvent", attributes2, "Timestamp");
    Broker.send(eventType2);
    loadData(eventType2, obuEventsFile);
    SushiQuery query =
        new SushiQuery(
            "timestamp",
            "select formatDate(Timestamp, 'yyyy-MM-dd HH:mm:ss') from obuEventWindow",
            SushiQueryTypeEnum.ONDEMAND);
    String result = query.execute();
    System.out.println(result);
  }
  @Test
  public void getAggregtedEventsFromEsper() {
    SushiAttribute rootAttribute4 = new SushiAttribute("Driver", SushiAttributeTypeEnum.STRING);
    SushiAttribute rootAttribute5 = new SushiAttribute("Location", SushiAttributeTypeEnum.STRING);

    List<SushiAttribute> attributes2 = Arrays.asList(rootAttribute4, rootAttribute5);
    SushiEventType eventType2 = new SushiEventType("obuEvent", attributes2, "Timestamp");
    Broker.send(eventType2);
    loadData(eventType2, obuEventsFile);
    SushiQuery queryRome =
        new SushiQuery(
            "rome",
            "select count(*) from obuEventWindow where Driver = 'Paul' AND Location = 'Rome'",
            SushiQueryTypeEnum.ONDEMAND);
    String result = queryRome.execute();
    String number = (String) result.subSequence(result.indexOf("=") + 1, result.indexOf("}"));
    System.out.println(number);
  }