BayeuxClientLoadTest.java

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package com.sun.grizzly.cometd.client;

import com.sun.grizzly.arp.AsyncHandler;
import com.sun.grizzly.arp.DefaultAsyncHandler;
import com.sun.grizzly.comet.CometAsyncFilter;
import com.sun.grizzly.cometd.standalone.CometdAdapter;
import com.sun.grizzly.http.SelectorThread;
import com.sun.grizzly.http.StatsThreadPool;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.logging.Logger;

import com.sun.grizzly.util.Utils;
import junit.framework.TestCase;

import org.mortbay.cometd.client.BayeuxLoadGenerator;

/**
 * Issue 174
 * @author Shing Wai Chan
 */
public class BayeuxClientLoadTest extends TestCase {
    public static final int PORT = 18890;
    private String host = "localhost";

    private static Logger logger = Logger.getLogger("grizzly.test");

    private SelectorThread st;


    /*
     * @see TestCase#setUp()
     */
    @Override
    protected void setUp() throws Exception{
        st = new SelectorThread();
        st.setPort(PORT);
        st.setAdapter(new CometdAdapter());

        StatsThreadPool threadPool = new StatsThreadPool();
        threadPool.setMaximumPoolSize(600);
        st.setThreadPool(threadPool);
        
        st.setEnableAsyncExecution(true);
        AsyncHandler asyncHandler = new DefaultAsyncHandler();
        asyncHandler.addAsyncFilter(new CometAsyncFilter()); 
        st.setAsyncHandler(asyncHandler);
        st.setDisplayConfiguration(Utils.VERBOSE_TESTS);
        
        try {
            st.listen();
        } catch (Exception ex) {
            ex.printStackTrace();
        }        
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
        if (st != null){
            //avoiding log spam from closed clients when stoping endpoint
            PrintStream ps = System.err;
            System.setErr(new PrintStream(new OutputStream() {
                public void write(int b) throws IOException {
             }}));
            st.stopEndpoint();
            Thread.sleep(2000);
            System.setErr(ps);
        }
    }

    public void testLoad1() throws Exception {
        doTest(100,  1, 100, 1000,  50,   100);
    }
   
   /* public void testLoad2() throws Exception {
        doTest(10,   1, 200, 100,   25000, 1000);
    }*/
    

    public void doTest(int rooms, int rooms_per_client, int nclients, int publish , int msgsize, int pause) throws Exception {
        
        String uri = "/cometd/cometd";
        String base = "/chat/demo";
        int maxLatency = 5000;

        String chat = "";
        for (int i = 0; i < msgsize; i++) {
            chat += "x";
        }
        
        int burst = 10;

        BayeuxLoadGenerator generator = new BayeuxLoadGenerator();
        generator.initSocketAddress(host, PORT);
        
        Utils.dumpErr("rooms: "+rooms +" roomsPerclient: "+rooms_per_client+
                " clients: "+nclients+" publish: "+publish+" msgsize: "+msgsize+
                " publish pause: "+pause+"ms");

        long got = generator.generateLoad(uri, base, rooms, rooms_per_client,
                maxLatency, nclients, publish, chat, pause, burst);
        publish=(publish*nclients)/rooms;
        assertTrue(got > publish*0.9);
    }

}