Java EPStatementObjectModel类代码示例

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void tryEnumeration(EPServiceProvider epService, String expression) {

        String epl = expression + " select callIt().countOf(v => v<6) as val0 from SupportBean";
        EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
        SupportUpdateListener listener = new SupportUpdateListener();
        stmt.addListener(listener);
        assertEquals(Integer.class, stmt.getEventType().getPropertyType("val0"));

        epService.getEPRuntime().sendEvent(new SupportBean());
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), "val0".split(","), new Object[]{2});

        stmt.destroy();

        EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
        assertEquals(epl, model.toEPL());
        EPStatement stmtTwo = epService.getEPAdministrator().create(model);
        stmtTwo.addListener(listener);
        assertEquals(epl, stmtTwo.getText());

        epService.getEPRuntime().sendEvent(new SupportBean());
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), "val0".split(","), new Object[]{2});

        stmtTwo.destroy();
    }
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
public void run(EPServiceProvider epService) throws Exception {

        String epl = "select " +
                "theString, " +
                "nth(intPrimitive,0) as int1, " +  // current
                "nth(intPrimitive,1) as int2 " +   // one before
                "from SupportBean#keepall group by theString output last every 3 events order by theString";
        EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
        SupportUpdateListener listener = new SupportUpdateListener();
        stmt.addListener(listener);

        runAssertion(epService, listener);

        stmt.destroy();
        EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
        stmt = epService.getEPAdministrator().create(model);
        stmt.addListener(listener);
        assertEquals(epl, model.toEPL());

        runAssertion(epService, listener);

        tryInvalid(epService, "select nth() from SupportBean",
                "Error starting statement: Failed to validate select-clause expression 'nth(*)': The nth aggregation function requires two parameters, an expression returning aggregation values and a numeric index constant [select nth() from SupportBean]");
    }
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionRateDataNonWindowed(EPServiceProvider epService) {
    sendTimer(epService, 0);

    String epl = "select rate(10) as myrate from SupportBean";
    EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
    SupportUpdateListener listener = new SupportUpdateListener();
    stmt.addListener(listener);

    tryAssertion(epService, listener);

    stmt.destroy();
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
    stmt = epService.getEPAdministrator().create(model);
    stmt.addListener(listener);
    assertEquals(epl, model.toEPL());

    tryAssertion(epService, listener);

    tryInvalid(epService, "select rate() from SupportBean",
            "Error starting statement: Failed to validate select-clause expression 'rate(*)': The rate aggregation function minimally requires a numeric constant or expression as a parameter. [select rate() from SupportBean]");
    tryInvalid(epService, "select rate(true) from SupportBean",
            "Error starting statement: Failed to validate select-clause expression 'rate(true)': The rate aggregation function requires a numeric constant or time period as the first parameter in the constant-value notation [select rate(true) from SupportBean]");

    stmt.destroy();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
public void run(EPServiceProvider epService) throws Exception {
    String epl = "select leaving() as val from SupportBean#length(3)";
    EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
    SupportUpdateListener listener = new SupportUpdateListener();
    stmt.addListener(listener);

    runAssertion(epService, listener);

    stmt.destroy();
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
    stmt = epService.getEPAdministrator().create(model);
    stmt.addListener(listener);
    assertEquals(epl, model.toEPL());

    runAssertion(epService, listener);

    tryInvalid(epService, "select leaving(1) from SupportBean",
            "Error starting statement: Failed to validate select-clause expression 'leaving(1)': The 'leaving' function expects no parameters");
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void validate(EPServiceProvider epService, String selectClause, String groupByClause, String[] expectedCSV) {

        String epl = PLAN_CALLBACK_HOOK + " select " + selectClause + ", count(*) from ABCProp group by " + groupByClause;
        SupportGroupRollupPlanHook.reset();
        EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
        comparePlan(expectedCSV);
        stmt.destroy();

        EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
        assertEquals(epl, model.toEPL());
        SupportGroupRollupPlanHook.reset();
        stmt = epService.getEPAdministrator().create(model);
        comparePlan(expectedCSV);
        assertEquals(epl, stmt.getText());
        stmt.destroy();
    }
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionDocSampleCarEventAndGroupingFunc(EPServiceProvider epService) {
    epService.getEPAdministrator().getConfiguration().addEventType(CarEvent.class);

    // try simple
    String epl = "select name, place, sum(count), grouping(name), grouping(place), grouping_id(name,place) as gid " +
            "from CarEvent group by grouping sets((name, place), name, place, ())";
    SupportUpdateListener listener = new SupportUpdateListener();
    epService.getEPAdministrator().createEPL(epl).addListener(listener);
    tryAssertionDocSampleCarEvent(epService, listener);
    epService.getEPAdministrator().destroyAllStatements();

    // try audit
    epService.getEPAdministrator().createEPL("@Audit " + epl).addListener(listener);
    tryAssertionDocSampleCarEvent(epService, listener);
    epService.getEPAdministrator().destroyAllStatements();

    // try model
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
    assertEquals(epl, model.toEPL());
    EPStatement stmt = epService.getEPAdministrator().create(model);
    assertEquals(epl, stmt.getText());
    stmt.addListener(listener);
    tryAssertionDocSampleCarEvent(epService, listener);

    epService.getEPAdministrator().destroyAllStatements();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void tryAssertionTargetCurrentMatch(EPServiceProvider epService, boolean testSoda, TargetEnum target) {

        SupportUpdateListener listener = new SupportUpdateListener();
        String[] fields = "a1.id,aarr[0].id,b.id".split(",");
        String epl = "select * from pattern " + target.getText() + "[every a1=A -> [:10] aarr=A until b=B]";
        if (testSoda) {
            EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
            assertEquals(epl, model.toEPL());
            epService.getEPAdministrator().create(model).addListener(listener);
        } else {
            epService.getEPAdministrator().createEPL(epl).addListener(listener);
        }

        sendAEvent(epService, "A1");
        sendAEvent(epService, "A2");
        sendBEvent(epService, "B1");

        if (target == TargetEnum.SUPPRESS_ONLY || target == TargetEnum.DISCARD_AND_SUPPRESS) {
            EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"A1", "A2", "B1"});
        } else {
            EPAssertionUtil.assertPropsPerRowAnyOrder(listener.getAndResetLastNewData(), fields,
                    new Object[][]{{"A1", "A2", "B1"}, {"A2", null, "B1"}});
        }

        epService.getEPAdministrator().destroyAllStatements();
    }
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionMixed(EPServiceProvider epService) {
    SupportConditionHandlerFactory.SupportConditionHandler handler = SupportConditionHandlerFactory.getLastHandler();

    String expression = "select a.id as a, b.id as b, c.id as c from pattern [" +
            "every a=SupportBean_A -> b=SupportBean_B -[2]> c=SupportBean_C]";
    EPStatement stmt = epService.getEPAdministrator().createEPL(expression);

    tryAssertionMixed(epService, stmt, handler);

    // test SODA
    stmt.destroy();
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(expression);
    assertEquals(expression, model.toEPL());
    stmt = epService.getEPAdministrator().create(model);
    assertEquals(stmt.getText(), model.toEPL());
    tryAssertionMixed(epService, stmt, handler);

    stmt.destroy();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionSingleCategorySODAPrior(EPServiceProvider epService) {
    String ctx = "CategorizedContext";
    String eplCtx = "@Name('context') create context " + ctx + " as " +
            "group intPrimitive<10 as cat1 " +
            "from SupportBean";
    epService.getEPAdministrator().createEPL(eplCtx);

    String eplStmt = "context CategorizedContext select context.name as c0, context.label as c1, prior(1,intPrimitive) as c2 from SupportBean";
    EPStatementSPI statementOne = (EPStatementSPI) epService.getEPAdministrator().createEPL(eplStmt);
    SupportUpdateListener listener = new SupportUpdateListener();

    runAssertion(epService, listener, ctx, statementOne);

    // test SODA
    EPStatementObjectModel modelContext = epService.getEPAdministrator().compileEPL(eplCtx);
    assertEquals(eplCtx, modelContext.toEPL());
    EPStatement stmt = epService.getEPAdministrator().create(modelContext);
    assertEquals(eplCtx, stmt.getText());

    EPStatementObjectModel modelStmt = epService.getEPAdministrator().compileEPL(eplStmt);
    assertEquals(eplStmt, modelStmt.toEPL());
    EPStatementSPI statementTwo = (EPStatementSPI) epService.getEPAdministrator().create(modelStmt);
    assertEquals(eplStmt, statementTwo.getText());

    runAssertion(epService, listener, ctx, statementTwo);
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
protected static void runEquivalent(EPServiceProvider epService, String before, String after) throws Exception {
    String epl = "select * from SupportBean#keepall " +
            "match_recognize (" +
            " measures A as a" +
            " pattern (" + before + ")" +
            " define" +
            " A as A.theString like \"A%\"" +
            ")";
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
    EPStatementSPI spi = (EPStatementSPI) epService.getEPAdministrator().create(model);
    StatementSpecCompiled spec = ((EPServiceProviderSPI) epService).getStatementLifecycleSvc().getStatementSpec(spi.getStatementId());
    RowRegexExprNode expanded = RegexPatternExpandUtil.expand(spec.getMatchRecognizeSpec().getPattern());
    StringWriter writer = new StringWriter();
    expanded.toEPL(writer, RowRegexExprNodePrecedenceEnum.MINIMUM);
    assertEquals(after, writer.toString());
    epService.getEPAdministrator().destroyAllStatements();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionInherit(EPServiceProvider epService) throws Exception {
    epService.getEPAdministrator().createEPL("create schema MyParentType as (col1 int, col2 string)");
    EPStatement stmtChild = epService.getEPAdministrator().createEPL("create schema MyChildTypeOne (col3 int) inherits MyParentType");
    assertEquals(Integer.class, stmtChild.getEventType().getPropertyType("col1"));
    assertEquals(String.class, stmtChild.getEventType().getPropertyType("col2"));
    assertEquals(Integer.class, stmtChild.getEventType().getPropertyType("col3"));

    epService.getEPAdministrator().createEPL("create schema MyChildTypeTwo as (col4 boolean)");
    String createText = "create schema MyChildChildType as (col5 short, col6 long) inherits MyChildTypeOne, MyChildTypeTwo";
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(createText);
    assertEquals(createText, model.toEPL());
    EPStatement stmtChildChild = epService.getEPAdministrator().create(model);
    assertEquals(Boolean.class, stmtChildChild.getEventType().getPropertyType("col4"));
    assertEquals(Integer.class, stmtChildChild.getEventType().getPropertyType("col3"));
    assertEquals(Short.class, stmtChildChild.getEventType().getPropertyType("col5"));

    EPStatement stmtChildChildTwo = epService.getEPAdministrator().createEPL("create schema MyChildChildTypeTwo () inherits MyChildTypeOne, MyChildTypeTwo");
    assertEquals(Boolean.class, stmtChildChildTwo.getEventType().getPropertyType("col4"));
    assertEquals(Integer.class, stmtChildChildTwo.getEventType().getPropertyType("col3"));
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
public Collection<RawStream> parseRawStreams() throws Exception{
	TreeMap<String,RawStream> rsMap=new TreeMap<String,RawStream>();
	EPStatementObjectModel som=epService.getEPAdministrator().compileEPL(epl);
	FromClause fc=som.getFromClause();
	for(com.espertech.esper.client.soda.Stream s: fc.getStreams()){
		if(s instanceof com.espertech.esper.client.soda.FilterStream){
			com.espertech.esper.client.soda.FilterStream fs=(com.espertech.esper.client.soda.FilterStream)s;
			String eventTypeName=fs.getFilter().getEventTypeName();
			for(RawStream rs: rawStreamList){
				if(rs.getEvent().getName().equals(eventTypeName)){
					rsMap.put(eventTypeName, rs);
					break;
				}
			}
		}
		else{
			throw new RuntimeException("not implemented yet");
		}
	}
	return rsMap.values();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionColumnsUncorrelated(EPServiceProvider epService) {
    String stmtText = "select " +
            "(select theString as v1, intPrimitive as v2 from SupportBean#lastevent) as subrow " +
            "from S0 as s0";
    EPStatement stmt = epService.getEPAdministrator().createEPL(stmtText);
    SupportUpdateListener listener = new SupportUpdateListener();
    stmt.addListener(listener);

    tryAssertion(epService, listener, stmt);

    stmt.destroy();
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(stmtText);
    assertEquals(stmtText, model.toEPL());
    stmt = epService.getEPAdministrator().create(model);
    stmt.addListener(listener);
    assertEquals(stmtText, stmt.getText());

    tryAssertion(epService, listener, stmt);

    stmt.destroy();
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionSameProviderGroupedReturnSingleEvent(EPServiceProvider epService) throws Exception {
    String epl = "select se1() as c0, se2() as c1 from SupportBean#keepall group by theString";

    // test regular
    SupportAggMFFactory.reset();
    SupportAggMFHandler.reset();
    SupportAggMFFactorySingleEvent.reset();

    EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
    tryAssertion(epService, stmt);

    // test SODA
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(epl);
    SupportAggMFFactory.reset();
    SupportAggMFHandler.reset();
    SupportAggMFFactorySingleEvent.reset();
    assertEquals(epl, model.toEPL());
    EPStatement stmtModel = epService.getEPAdministrator().create(model);
    assertEquals(epl, stmtModel.getText());
    tryAssertion(epService, stmtModel);
}
 

import com.espertech.esper.client.soda.EPStatementObjectModel; //导入依赖的package包/类
private void runAssertionChainMethod(EPServiceProvider epService) throws Exception {
    String text = "select chainTop().chainValue(12,intPrimitive) as val from SupportBean";
    EPStatement stmt = epService.getEPAdministrator().createEPL(text);
    SupportUpdateListener listener = new SupportUpdateListener();
    stmt.addListener(listener);

    tryAssertionChainMethod(epService, listener);

    stmt.destroy();
    EPStatementObjectModel model = epService.getEPAdministrator().compileEPL(text);
    assertEquals(text, model.toEPL());
    stmt = epService.getEPAdministrator().create(model);
    assertEquals(text, stmt.getText());
    stmt.addListener(listener);

    tryAssertionChainMethod(epService, listener);
}