org.jgroups.tests.bla8 Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including
all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and
Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
package org.jgroups.tests;
import org.jgroups.Address;
import org.jgroups.JChannel;
import org.jgroups.blocks.MethodCall;
import org.jgroups.blocks.RequestOptions;
import org.jgroups.blocks.ResponseMode;
import org.jgroups.blocks.RpcDispatcher;
import 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]);
}
}
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