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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS 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).
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package org.jgroups.tests;
import org.jgroups.*;
import org.jgroups.protocols.UNICAST3;
import org.jgroups.stack.Protocol;
import org.jgroups.util.Util;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
/**
* Perf tests the UNICAST protocol by sending unicast messages between a sender and a receiver
*
* @author Bela Ban
*/
public class UnicastTest {
protected JChannel channel;
protected final MyReceiver receiver=new MyReceiver();
protected long sleep_time=0;
protected boolean oob=false, dont_bundle=false;
protected int num_threads=1;
protected int num_msgs=100000, msg_size=1000;
protected static final byte START = 1; // | num_msgs (long) |
protected static final byte DATA = 2; // | length (int) | data (byte[]) |
public void init(String props, long sleep_time, String name) throws Exception {
channel=new JChannel(props);
this.sleep_time=sleep_time;
if(name != null)
channel.setName(name);
channel.setReceiver(receiver);
connect();
}
protected void connect() throws Exception {
channel.connect(getClass().getSimpleName());
}
protected void disconnect() {
channel.disconnect();
}
public void eventLoop() throws Exception {
int c;
while(true) {
System.out.print("[1] Send msgs [2] Print view [3] Print conns [5] Trash all conns" +
"\n[6] Set sender threads (" + num_threads + ") [7] Set num msgs (" + num_msgs + ") " +
"[8] Set msg size (" + Util.printBytes(msg_size) + ")" +
"\n[o] Toggle OOB (" + oob + ") [b] Toggle dont_bundle (" + dont_bundle + ") " +
"[r] reconnect\n[q] Quit\n");
System.out.flush();
c=System.in.read();
switch(c) {
case -1:
break;
case '1':
sendMessages();
break;
case '2':
printView();
break;
case '3':
printConnections();
break;
case '5':
removeAllConnections();
break;
case '6':
setSenderThreads();
break;
case '7':
setNumMessages();
break;
case '8':
setMessageSize();
break;
case 'o':
oob=!oob;
System.out.println("oob=" + oob);
break;
case 'b':
dont_bundle=!dont_bundle;
System.out.println("dont_bundle = " + dont_bundle);
break;
case 'r':
disconnect();
connect();
System.out.printf("reconnected: new view is %s\n", channel.getView());
break;
case 'q':
channel.close();
return;
default:
break;
}
}
}
protected void printConnections() {
Protocol prot=channel.getProtocolStack().findProtocol(Util.getUnicastProtocols());
if(prot instanceof UNICAST3)
System.out.println(((UNICAST3)prot).printConnections());
}
protected void removeAllConnections() {
Protocol prot=channel.getProtocolStack().findProtocol(Util.getUnicastProtocols());
if(prot instanceof UNICAST3)
((UNICAST3)prot).removeAllConnections();
}
void sendMessages() throws Exception {
Address destination=getReceiver();
if(destination == null) {
System.err.println("UnicastTest.sendMessages(): receiver is null, cannot send messages");
return;
}
if(num_threads > 1 && num_msgs % num_threads != 0) {
System.err.println("num_msgs (" + num_msgs + " ) has to be divisible by num_threads (" + num_threads + ")");
return;
}
System.out.println("sending " + num_msgs + " messages (" + Util.printBytes(msg_size) +
") to " + destination + ": oob=" + oob + ", " + num_threads + " sender thread(s)");
ByteBuffer buf=ByteBuffer.allocate(Global.BYTE_SIZE + Global.LONG_SIZE).put(START).putLong(num_msgs);
Message msg=new BytesMessage(destination, buf.array());
channel.send(msg);
long print=num_msgs / 10;
int msgs_per_sender=num_msgs / num_threads;
Sender[] senders=new Sender[num_threads];
for(int i=0; i < senders.length; i++)
senders[i]=new Sender(msgs_per_sender, msg_size, destination, (int)print);
for(Sender sender: senders)
sender.start();
for(Sender sender: senders)
sender.join();
System.out.println("done sending " + num_msgs + " to " + destination);
}
void setSenderThreads() throws Exception {
int threads=Util.readIntFromStdin("Number of sender threads: ");
int old=this.num_threads;
this.num_threads=threads;
System.out.println("sender threads set to " + num_threads + " (from " + old + ")");
}
void setNumMessages() throws Exception {
num_msgs=Util.readIntFromStdin("Number of messages: ");
System.out.println("Set num_msgs=" + num_msgs);
}
void setMessageSize() throws Exception {
msg_size=Util.readIntFromStdin("Message size: ");
System.out.println("set msg_size=" + msg_size);
}
void printView() {
System.out.println("\n-- view: " + channel.getView() + '\n');
try {
System.in.skip(System.in.available());
}
catch(Exception e) {
}
}
protected Address getReceiver() {
try {
List mbrs=channel.getView().getMembers();
System.out.println("pick receiver from the following members:");
int i=0;
for(Address mbr: mbrs) {
if(mbr.equals(channel.getAddress()))
System.out.println("[" + i + "]: " + mbr + " (self)");
else
System.out.println("[" + i + "]: " + mbr);
i++;
}
System.out.flush();
System.in.skip(System.in.available());
BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));
String tmp=reader.readLine().trim();
int index=Integer.parseInt(tmp);
return mbrs.get(index); // index out of bounds caught below
}
catch(Exception e) {
System.err.println("UnicastTest.getReceiver(): " + e);
return null;
}
}
public static void main(String[] args) {
long sleep_time=0;
String props=null;
String name=null;
for(int i=0; i < args.length; i++) {
if("-props".equals(args[i])) {
props=args[++i];
continue;
}
if("-sleep".equals(args[i])) {
sleep_time=Long.parseLong(args[++i]);
continue;
}
if("-name".equals(args[i])) {
name=args[++i];
continue;
}
help();
return;
}
try {
UnicastTest test=new UnicastTest();
test.init(props, sleep_time, name);
test.eventLoop();
}
catch(Exception ex) {
System.err.println(ex);
}
}
static void help() {
System.out.println("UnicastTest [-help] [-props ] [-sleep