package org.jgroups.tests;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jgroups.Address;
import org.jgroups.JChannel;
import org.jgroups.Message;
import org.jgroups.ReceiverAdapter;
import org.jgroups.protocols.DISCARD_PAYLOAD;
import org.jgroups.stack.ProtocolStack;
import org.jgroups.util.Util;
import java.util.LinkedList;
import java.util.List;
/**
* Tests the UNICAST protocol for OOB msgs, tests http://jira.jboss.com/jira/browse/JGRP-377
* @author Bela Ban
* @version $Id: UNICAST_OOB_Test.java,v 1.4 2006/12/13 12:02:42 belaban Exp $
*/
public class UNICAST_OOB_Test extends TestCase {
JChannel ch1, ch2;
final String props="udp.xml";
public UNICAST_OOB_Test(String name) {
super(name);
}
public void setUp() throws Exception {
super.setUp();
ch1=new JChannel(props);
ch2=new JChannel(props);
}
public void tearDown() throws Exception {
if(ch1 != null)
ch1.close();
if(ch2 != null)
ch2.close();
super.tearDown();
}
public void testRegularMessages() throws Exception {
sendMessages(false);
}
public void testOutOfBandMessages() throws Exception {
sendMessages(true);
}
/**
*/
private void sendMessages(boolean oob) throws Exception {
DISCARD_PAYLOAD prot1=new DISCARD_PAYLOAD();
MyReceiver receiver=new MyReceiver();
ch2.setReceiver(receiver);
// the second channel will discard the unicast messages with seqno #3 two times, the let them pass
ch2.getProtocolStack().insertProtocol(prot1, ProtocolStack.BELOW, "UNICAST");
ch1.connect("x");
ch2.connect("x");
assertEquals(2, ch2.getView().getMembers().size());
Address dest=ch2.getLocalAddress();
for(int i=1; i <=5; i++) {
Message msg=new Message(dest, null, new Long(i));
if(i == 4 && oob)
msg.setFlag(Message.OOB);
System.out.println("-- sending message #" + i);
ch1.send(msg);
Util.sleep(100);
}
Util.sleep(5000); // wait until retransmission of seqno #3 happens, so that 4 and 5 are received as well
List seqnos=receiver.getSeqnos();
System.out.println("sequence numbers: " + seqnos);
// expected sequence is: 1 2 4 3 5 ! Reason: 4 is sent OOB, does *not* wait until 3 has been retransmitted !!
Long[] expected_seqnos=oob?
new Long[]{new Long(1), new Long(2), new Long(4), new Long(3), new Long(5)} : // OOB
new Long[]{new Long(1), new Long(2), new Long(3), new Long(4), new Long(5)}; // regular
for(int i=0; i < expected_seqnos.length; i++) {
Long expected_seqno=expected_seqnos[i];
Long received_seqno=(Long)seqnos.get(i);
assertEquals(expected_seqno, received_seqno);
}
}
public static class MyReceiver extends ReceiverAdapter {
/** List<Long> of unicast sequence numbers */
List seqnos=new LinkedList();
public MyReceiver() {
}
public List getSeqnos() {
return seqnos;
}
public void receive(Message msg) {
if(msg != null) {
Long num=(Long)msg.getObject();
seqnos.add(num);
}
}
}
public static Test suite() {
return new TestSuite(UNICAST_OOB_Test.class);
}
public static void main(String[] args) {
junit.textui.TestRunner.run(UNICAST_OOB_Test.suite());
}
}