/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* 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.multithread;
import com.espertech.esper.client.*;
import com.espertech.esper.collection.MultiKeyUntyped;
import com.espertech.esper.supportregression.bean.SupportBean;
import com.espertech.esper.supportregression.client.SupportConfigFactory;
import junit.framework.TestCase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
/**
* Test for multithread-safety and named window updates.
*/
public class TestMTStmtNamedWindowUpdate extends TestCase
{
private static final Logger log = LoggerFactory.getLogger(TestMTStmtNamedWindowUpdate.class);
public final static int NUM_STRINGS = 100;
public final static int NUM_INTS = 10;
private EPServiceProvider engine;
public void tearDown()
{
engine.initialize();
}
public void testConcurrentUpdate() throws Exception
{
trySend(5, 10000);
}
private void trySend(int numThreads, int numEventsPerThread) throws Exception
{
Configuration config = SupportConfigFactory.getConfiguration();
config.addEventType("SupportBean", SupportBean.class);
engine = EPServiceProviderManager.getDefaultProvider(config);
engine.initialize();
// setup statements
engine.getEPAdministrator().createEPL("create window MyWindow#unique(theString, intPrimitive) as select * from SupportBean");
engine.getEPAdministrator().createEPL("insert into MyWindow select * from SupportBean(boolPrimitive = true)");
engine.getEPAdministrator().createEPL("on SupportBean(boolPrimitive = false) sb " +
"update MyWindow win set intBoxed = win.intBoxed + 1, doublePrimitive = win.doublePrimitive + sb.doublePrimitive" +
" where sb.theString = win.theString and sb.intPrimitive = win.intPrimitive");
// send primer events, initialize totals
Map<MultiKeyUntyped, UpdateTotals> totals = new HashMap<MultiKeyUntyped, UpdateTotals>();
for (int i = 0; i < NUM_STRINGS; i++) {
for (int j = 0; j < NUM_INTS; j++) {
SupportBean primer = new SupportBean(Integer.toString(i), j);
primer.setBoolPrimitive(true);
primer.setIntBoxed(0);
primer.setDoublePrimitive(0);
engine.getEPRuntime().sendEvent(primer);
MultiKeyUntyped key = new MultiKeyUntyped(primer.getTheString(), primer.getIntPrimitive());
totals.put(key, new UpdateTotals(0,0));
}
}
// execute
long startTime = System.currentTimeMillis();
ExecutorService threadPool = Executors.newFixedThreadPool(numThreads);
Future<StmtNamedWindowUpdateCallable.UpdateResult> future[] = new Future[numThreads];
for (int i = 0; i < numThreads; i++)
{
future[i] = threadPool.submit(new StmtNamedWindowUpdateCallable("Thread" + i, engine, numEventsPerThread));
}
threadPool.shutdown();
threadPool.awaitTermination(10, TimeUnit.SECONDS);
long endTime = System.currentTimeMillis();
// total up result
long deltaCumulative = 0;
for (int i = 0; i < numThreads; i++)
{
StmtNamedWindowUpdateCallable.UpdateResult result = future[i].get();
deltaCumulative += result.getDelta();
for (StmtNamedWindowUpdateCallable.UpdateItem item : result.getUpdates()) {
MultiKeyUntyped key = new MultiKeyUntyped(item.getTheString(), item.getIntval());
UpdateTotals total = totals.get(key);
if (total == null) {
throw new RuntimeException("Totals not found for key " + key);
}
total.setNum(total.getNum() + 1);
total.setSum(total.getSum() + item.getDoublePrimitive());
}
}
// compare
EventBean[] rows = engine.getEPRuntime().executeQuery("select * from MyWindow").getArray();
assertEquals(rows.length, totals.size());
long totalUpdates = 0;
for (EventBean row : rows)
{
UpdateTotals total = totals.get(new MultiKeyUntyped(row.get("theString"), row.get("intPrimitive")));
assertEquals(total.getNum(), row.get("intBoxed"));
assertEquals(total.getSum(), row.get("doublePrimitive"));
totalUpdates += total.getNum();
}
assertEquals(totalUpdates, numThreads * numEventsPerThread);
//long deltaTime = endTime - startTime;
//System.out.println("Totals updated: " + totalUpdates + " Delta cumu: " + deltaCumulative + " Delta pooled: " + deltaTime);
}
private static class UpdateTotals {
private int num;
private double sum;
private UpdateTotals(int num, double sum) {
this.num = num;
this.sum = sum;
}
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
public double getSum() {
return sum;
}
public void setSum(double sum) {
this.sum = sum;
}
}
}