Example #1
0
  public void testCoalesceLong_OM() throws Exception {
    String viewExpr =
        "select coalesce(longBoxed, intBoxed, shortBoxed) as result"
            + " from "
            + SupportBean.class.getName()
            + ".win:length(1000)";

    EPStatementObjectModel model = new EPStatementObjectModel();
    model.setSelectClause(
        SelectClause.create()
            .add(Expressions.coalesce("longBoxed", "intBoxed", "shortBoxed"), "result"));
    model.setFromClause(
        FromClause.create(
            FilterStream.create(SupportBean.class.getName())
                .addView("win", "length", Expressions.constant(1000))));
    model = (EPStatementObjectModel) SerializableObjectCopier.copy(model);
    assertEquals(viewExpr, model.toEPL());

    epService.initialize();
    selectTestView = epService.getEPAdministrator().create(model);
    selectTestView.addListener(testListener);
    assertEquals(Long.class, selectTestView.getEventType().getPropertyType("result"));

    runCoalesceLong();
  }
Example #2
0
  @Test
  public void testSODA() {
    // should say fieldsTypes, maybe with object/component prefix
    Map<String, Object> eventTypes = new HashMap<>();
    eventTypes.put(LITERAL_SYMBOL, String.class);
    eventTypes.put(LITERAL_PRICE, Integer.class);

    EPStatementObjectModel model = new EPStatementObjectModel();
    model.setInsertInto(InsertIntoClause.create(LITERAL_RETURN_OBJ));
    model.setSelectClause(
        SelectClause.create().add(Expressions.avg(LITERAL_PRICE), LITERAL_AVG).add(LITERAL_PRICE));
    Filter filter = Filter.create("quotes_default", Expressions.eq(LITERAL_SYMBOL, "A"));
    model.setFromClause(
        FromClause.create(
            FilterStream.create(filter).addView("win", "length", Expressions.constant(2))));
    model.setHavingClause(
        Expressions.gt(Expressions.avg(LITERAL_PRICE), Expressions.constant(60.0)));

    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout(LITERAL_QUOTES, new RandomSentenceSpout());
    builder
        .setBolt(
            LITERAL_ESPER,
            (new EsperBolt())
                .addEventTypes(eventTypes)
                .addOutputTypes(
                    Collections.singletonMap(
                        LITERAL_RETURN_OBJ, Arrays.asList(LITERAL_AVG, LITERAL_PRICE)))
                .addObjectStatemens(Collections.singleton(model)))
        .shuffleGrouping(LITERAL_QUOTES);
    builder.setBolt("print", new PrinterBolt()).shuffleGrouping(LITERAL_ESPER, LITERAL_RETURN_OBJ);

    Config conf = new Config();
    LocalCluster cluster = new LocalCluster();
    cluster.submitTopology("test", conf, builder.createTopology());
    Utils.sleep(10000);
    cluster.shutdown();
    assertEquals(resultSODA.get(100), new Double(75.0));
    assertEquals(resultSODA.get(50), new Double(75.0));
  }
  public void testUnfilteredStreamPrior_OM() throws Exception {
    EPStatementObjectModel subquery = new EPStatementObjectModel();
    subquery.setSelectClause(SelectClause.create().add(Expressions.prior(0, "id")));
    subquery.setFromClause(
        FromClause.create(
            FilterStream.create("S1").addView("win", "length", Expressions.constant(1000))));

    EPStatementObjectModel model = new EPStatementObjectModel();
    model.setSelectClause(SelectClause.create().add(Expressions.subquery(subquery), "idS1"));
    model.setFromClause(FromClause.create(FilterStream.create("S0")));
    model = (EPStatementObjectModel) SerializableObjectCopier.copy(model);

    String stmtText = "select (select prior(0, id) from S1.win:length(1000)) as idS1 from S0";
    assertEquals(stmtText, model.toEPL());
    EPStatement stmt = epService.getEPAdministrator().create(model);
    runUnfilteredStreamPrior(stmt);
  }
Example #4
0
  public void testMinMaxWindowStats_OM() throws Exception {
    String viewExpr =
        "select max(longBoxed, intBoxed) as myMax, "
            + "max(longBoxed, intBoxed, shortBoxed) as myMaxEx, "
            + "min(longBoxed, intBoxed) as myMin, "
            + "min(longBoxed, intBoxed, shortBoxed) as myMinEx"
            + " from "
            + SupportBean.class.getName()
            + ".win:length(3)";

    EPStatementObjectModel model = new EPStatementObjectModel();
    model.setSelectClause(
        SelectClause.create()
            .add(Expressions.max("longBoxed", "intBoxed"), "myMax")
            .add(
                Expressions.max(
                    Expressions.property("longBoxed"),
                    Expressions.property("intBoxed"),
                    Expressions.property("shortBoxed")),
                "myMaxEx")
            .add(Expressions.min("longBoxed", "intBoxed"), "myMin")
            .add(
                Expressions.min(
                    Expressions.property("longBoxed"),
                    Expressions.property("intBoxed"),
                    Expressions.property("shortBoxed")),
                "myMinEx"));
    model.setFromClause(
        FromClause.create(
            FilterStream.create(SupportBean.class.getName())
                .addView("win", "length", Expressions.constant(3))));
    model = (EPStatementObjectModel) SerializableObjectCopier.copy(model);
    assertEquals(viewExpr, model.toEPL());

    selectTestView = epService.getEPAdministrator().create(model);
    selectTestView.addListener(testListener);
    testListener.reset();

    runMinMaxWindowStats();
  }
Example #5
0
  public void testVariantOneOMToStmt() throws Exception {
    EPStatementObjectModel model = new EPStatementObjectModel();
    model.setInsertInto(InsertIntoClause.create("Event_1", "delta", "product"));
    model.setSelectClause(
        SelectClause.create()
            .add(Expressions.minus("intPrimitive", "intBoxed"), "deltaTag")
            .add(Expressions.multiply("intPrimitive", "intBoxed"), "productTag"));
    model.setFromClause(
        FromClause.create(
            FilterStream.create(SupportBean.class.getName())
                .addView(View.create("win", "length", Expressions.constant(100)))));
    model = (EPStatementObjectModel) SerializableObjectCopier.copy(model);

    EPStatement stmt = runAsserts(null, model);

    String epl =
        "insert into Event_1(delta, product) "
            + "select intPrimitive - intBoxed as deltaTag, intPrimitive * intBoxed as productTag "
            + "from "
            + SupportBean.class.getName()
            + ".win:length(100)";
    assertEquals(epl, model.toEPL());
    assertEquals(epl, stmt.getText());
  }