TestFirstEverLastEverAgg.java

/*
 * *************************************************************************************
 *  Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 *  http://esper.codehaus.org                                                          *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 * *************************************************************************************
 */

package com.espertech.esper.regression.view;

import com.espertech.esper.client.Configuration;
import com.espertech.esper.client.EPServiceProvider;
import com.espertech.esper.client.EPServiceProviderManager;
import com.espertech.esper.client.EPStatement;
import com.espertech.esper.client.scopetest.EPAssertionUtil;
import com.espertech.esper.client.scopetest.SupportUpdateListener;
import com.espertech.esper.client.soda.EPStatementObjectModel;
import com.espertech.esper.support.bean.SupportBean;
import com.espertech.esper.support.bean.SupportBean_A;
import com.espertech.esper.support.client.SupportConfigFactory;
import junit.framework.TestCase;

public class TestFirstEverLastEverAgg extends TestCase {

    private EPServiceProvider epService;
    private SupportUpdateListener listener;

    public void setUp()
    {
        listener = new SupportUpdateListener();
        Configuration config = SupportConfigFactory.getConfiguration();
        config.addEventType("SupportBean", SupportBean.class);
        config.addEventType("SupportBean_A", SupportBean_A.class);
        epService = EPServiceProviderManager.getDefaultProvider(config);
        epService.initialize();
    }

    protected void tearDown() throws Exception {
        listener = null;
    }

    public void testFirstEverLastEver()
    {
        String epl = "select firstever(theString) as firsteverstring, lastever(theString) as lasteverstring, " +
                "firstever(intPrimitive) as firsteverint, lastever(intPrimitive) as lasteverint from SupportBean.win:length(2)";
        EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
        stmt.addListener(listener);

        runAssertion();

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

        runAssertion();
    }

    public void testOnDelete()
    {
        epService.getEPAdministrator().createEPL("create window MyWindow.win:keepall() as select * from SupportBean");
        epService.getEPAdministrator().createEPL("insert into MyWindow select * from SupportBean");
        epService.getEPAdministrator().createEPL("on SupportBean_A delete from MyWindow where theString = id");

        String[] fields = "firsteverstring,lasteverstring".split(",");
        String epl = "select firstever(theString) as firsteverstring, lastever(theString) as lasteverstring from MyWindow";
        EPStatement stmt = epService.getEPAdministrator().createEPL(epl);
        stmt.addListener(listener);
        
        epService.getEPRuntime().sendEvent(new SupportBean("E1", 10));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E1"});

        epService.getEPRuntime().sendEvent(new SupportBean("E2", 20));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E2"});

        epService.getEPRuntime().sendEvent(new SupportBean("E3", 30));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E3"});

        epService.getEPRuntime().sendEvent(new SupportBean_A("E2"));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E3"});

        epService.getEPRuntime().sendEvent(new SupportBean_A("E3"));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E3"});

        epService.getEPRuntime().sendEvent(new SupportBean_A("E1"));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", "E3"});
    }

    private void runAssertion() {
        String[] fields = "firsteverstring,firsteverint,lasteverstring,lasteverint".split(",");

        epService.getEPRuntime().sendEvent(new SupportBean("E1", 10));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", 10, "E1", 10});

        epService.getEPRuntime().sendEvent(new SupportBean("E2", 11));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", 10, "E2", 11});

        epService.getEPRuntime().sendEvent(new SupportBean("E3", 12));
        EPAssertionUtil.assertProps(listener.assertOneGetNewAndReset(), fields, new Object[]{"E1", 10, "E3", 12});
    }
}