Examples of org.jgroups.stack.AckMcastSenderWindow

org.jgroups.stack.AckMcastSenderWindow
Keeps track of ACKs from receivers for each message. When a new message is sent, it is tagged with a sequence number and the receiver set (set of members to which the message is sent) and added to a hashtable (key = sequence number, val = message + receiver set). Each incoming ACK is noted and when all ACKs for a specific sequence number haven been received, the corresponding entry is removed from the hashtable. A retransmission thread periodically re-sends the message point-to-point to all receivers from which no ACKs have been received yet. A view change or suspect message causes the corresponding non-existing receivers to be removed from the hashtable.
This class may need flow control in order to avoid needless retransmissions because of timeouts. @author Bela Ban June 9 1999 @author John Georgiadis May 8 2001 @version $Revision: 1.10 $




    @BeforeMethod
    void setUp() throws Exception {
        _cmd=new Cmd();
        _win=new AckMcastSenderWindow(_cmd);


    }

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        _win.stop();
    }




    public static void testRemove() throws UnknownHostException {
        AckMcastSenderWindow mywin=new AckMcastSenderWindow(new MyCommand(), new StaticInterval(1000, 2000, 3000));
        Address sender1=new IpAddress("127.0.0.1", 10000);
        Address sender2=new IpAddress("127.0.0.1", 10001);
        Address sender3=new IpAddress("127.0.0.1", 10002);
        Vector senders=new Vector();
        Message msg=new Message();
        long seqno=322649;


        senders.addElement(sender1);
        senders.addElement(sender2);
        senders.addElement(sender3);


        mywin.add(seqno, msg, (Vector)senders.clone()); // clone() for the fun of it...


        mywin.ack(seqno, sender1);
        mywin.ack(seqno, sender2);


        System.out.println("entry is " + mywin.printDetails(seqno));
        Assert.assertEquals(3, mywin.getNumberOfResponsesExpected(seqno));
        Assert.assertEquals(2, mywin.getNumberOfResponsesReceived(seqno));
        mywin.waitUntilAllAcksReceived(4000);
        mywin.suspect(sender3);
        Assert.assertEquals(0, mywin.size());
    }

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                }
                break;


            case Event.CONNECT_OK:
                passUp(evt);
                sender_win=new AckMcastSenderWindow(this, timeout);


                // send join announcement
                Message join_msg=new Message();
                join_msg.putHeader(name, new SmackHeader(SmackHeader.JOIN_ANNOUNCEMENT, -1));
                passDown(new Event(Event.MSG, join_msg));

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    _win.stop();
    } // testAck()




    public void testRemove() throws UnknownHostException {
        AckMcastSenderWindow mywin=new AckMcastSenderWindow(new MyCommand(), new long[]{1000,2000,3000});
        Address sender1=new IpAddress("127.0.0.1", 10000);
        Address sender2=new IpAddress("127.0.0.1", 10001);
        Address sender3=new IpAddress("127.0.0.1", 10002);
        Vector  senders=new Vector();
        Message msg=new Message();
        long    seqno=322649;


        senders.addElement(sender1);
        senders.addElement(sender2);
        senders.addElement(sender3);


        mywin.add(seqno, msg, (Vector)senders.clone()); // clone() for the fun of it...


        mywin.ack(seqno, sender1);
        mywin.ack(seqno, sender2);


        System.out.println("entry is " + mywin.printDetails(seqno));
        assertTrue(mywin.getNumberOfResponsesExpected(seqno) == 3);
        assertTrue(mywin.getNumberOfResponsesReceived(seqno) == 2);
        mywin.waitUntilAllAcksReceived(4000);
        mywin.suspect(sender3);
        assertTrue(mywin.size() == 0); // because suspect() removed that entry
    }

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    public AckMcastSenderWindowTest(String name) { super(name); }




    public void setUp() {
    _cmd = new Cmd();
    _win = new AckMcastSenderWindow(_cmd);
    _tbl = new Hashtable();
    }

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                sender_win.stop();
                break;


            case Event.CONNECT:
                Object ret=down_prot.down(evt);
                sender_win=new AckMcastSenderWindow(this, new StaticInterval(timeout));


                // send join announcement
                Message join_msg=new Message();
                join_msg.putHeader(name, new SmackHeader(SmackHeader.JOIN_ANNOUNCEMENT, -1));
                down_prot.down(new Event(Event.MSG, join_msg));

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                sender_win.stop();
                break;


            case Event.CONNECT:
                Object ret=down_prot.down(evt);
                sender_win=new AckMcastSenderWindow(this, new StaticInterval(timeout));


                // send join announcement
                Message join_msg=new Message();
                join_msg.putHeader(name, new SmackHeader(SmackHeader.JOIN_ANNOUNCEMENT, -1));
                down_prot.down(new Event(Event.MSG, join_msg));

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                sender_win.stop();
                break;


            case Event.CONNECT:
                Object ret=down_prot.down(evt);
                sender_win=new AckMcastSenderWindow(this, new StaticInterval(timeout));


                // send join announcement
                Message join_msg=new Message();
                join_msg.putHeader(name, new SmackHeader(SmackHeader.JOIN_ANNOUNCEMENT, -1));
                down_prot.down(new Event(Event.MSG, join_msg));

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        _win.stop();
    } // testAck()




    public void testRemove() throws UnknownHostException {
        AckMcastSenderWindow mywin=new AckMcastSenderWindow(new MyCommand(), new StaticInterval(1000, 2000, 3000));
        Address sender1=new IpAddress("127.0.0.1", 10000);
        Address sender2=new IpAddress("127.0.0.1", 10001);
        Address sender3=new IpAddress("127.0.0.1", 10002);
        Vector senders=new Vector();
        Message msg=new Message();
        long seqno=322649;


        senders.addElement(sender1);
        senders.addElement(sender2);
        senders.addElement(sender3);


        mywin.add(seqno, msg, (Vector)senders.clone()); // clone() for the fun of it...


        mywin.ack(seqno, sender1);
        mywin.ack(seqno, sender2);


        System.out.println("entry is " + mywin.printDetails(seqno));
        assertEquals(3, mywin.getNumberOfResponsesExpected(seqno));
        assertEquals(2, mywin.getNumberOfResponsesReceived(seqno));
        mywin.waitUntilAllAcksReceived(4000);
        mywin.suspect(sender3);
        assertEquals(0, mywin.size()); // because suspect() removed that entry
    }

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    public void setUp() throws Exception {
        super.setUp();
        _cmd=new Cmd();
        _win=new AckMcastSenderWindow(_cmd);


    }

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