org.apache.activemq.artemis.shaded.org.jgroups.tests.bla8 Maven / Gradle / Ivy

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package org.apache.activemq.artemis.shaded.org.jgroups.tests;

import org.apache.activemq.artemis.shaded.org.jgroups.Address;
import org.apache.activemq.artemis.shaded.org.jgroups.JChannel;
import org.apache.activemq.artemis.shaded.org.jgroups.blocks.MethodCall;
import org.apache.activemq.artemis.shaded.org.jgroups.blocks.RequestOptions;
import org.apache.activemq.artemis.shaded.org.jgroups.blocks.ResponseMode;
import org.apache.activemq.artemis.shaded.org.jgroups.blocks.RpcDispatcher;
import org.apache.activemq.artemis.shaded.org.jgroups.util.Util;

import java.lang.reflect.Method;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * @author Bela Ban
 * @since x.y
 */
public class bla8 {
    protected JChannel a;
    protected RpcDispatcher disp1;
    protected static final int threads=25;
    protected static final int num=100000, print=num / 10;
    protected static final Method say_method;
    protected static final RequestOptions options=new RequestOptions(ResponseMode.GET_ALL, 40000, false, null);

    static {
        try {
            say_method=bla8.class.getDeclaredMethod("sayHello", Address.class);
        }
        catch(NoSuchMethodException e) {
            throw new RuntimeException(e);
        }
    }

    public static String sayHello(Address sender) {
        return String.format("hello %s", sender);
    }

    protected void start(String name) throws Exception {
        a=new JChannel("/home/bela/fast.xml").name(name);
        disp1=new RpcDispatcher(a, this);
        a.connect("demo");
        System.out.printf("View is %s\n", a.getView());


        while(true) {
            Util.keyPress("enter");
            AtomicInteger cnt=new AtomicInteger(num);
            CountDownLatch latch=new CountDownLatch(threads+1);
            MethodCall call=new MethodCall(say_method, a.getAddress());
            Invoker[] invokers=new Invoker[threads];
            for(int i=0; i < invokers.length; i++) {
                invokers[i]=new Invoker(latch, cnt, call);
                invokers[i].start();
            }

            latch.countDown();
            for(Invoker inv: invokers)
                inv.join();
            System.out.println("");
        }
    }

    protected class Invoker extends Thread {
        protected final CountDownLatch latch;
        protected final AtomicInteger  cnt;
        protected final MethodCall     call;

        public Invoker(CountDownLatch latch, AtomicInteger cnt, MethodCall call) {
            this.latch=latch;
            this.cnt=cnt;
            this.call=call;
        }

        public void run() {
            int i;
            while((i=cnt.decrementAndGet()) > 0) {
                try {
                    disp1.callRemoteMethods(null, call, options);
                    if(i % print == 0)
                        System.out.printf(".");
                }
                catch(Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) throws Exception {
        new bla8().start(args[0]);
    }

}