Examples of org.jgroups.util.Digest

org.jgroups.util.Digest
A message digest, which is used by the PBCAST layer for gossiping (also used by NAKACK for keeping track of current seqnos for all members). It contains pairs of senders and a range of seqnos (low and high), where each sender is associated with its highest and lowest seqnos seen so far. That is, the lowest seqno which was not yet garbage-collected and the highest that was seen so far and is deliverable (or was already delivered) to the application. A range of [0 - 0] means no messages have been received yet.
April 3 2001 (bela): Added high_seqnos_seen member. It is used to disseminate information about the last (highest) message M received from a sender P. Since we might be using a negative acknowledgment message numbering scheme, we would never know if the last message was lost. Therefore we periodically gossip and include the last message seqno. Members who haven't seen it (e.g. because msg was dropped) will request a retransmission. See DESIGN for details. @author Bela Ban

        assertFalse(d.equals(tmp));
    }




    public void testImmutability2() {
        Digest tmp=d.copy();
        assertEquals(d, tmp);
    }

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        Digest tmp=d.copy();
        assertEquals(d, tmp);
    }


    public void testImmutability3() {
        Digest tmp=new Digest(d);
        assertEquals(tmp, d);
    }

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        Digest tmp=new Digest(d);
        assertEquals(tmp, d);
    }


    public void testImmutability4() {
        Digest copy=md.copy();
        assertEquals(copy, md);
        md.incrementHighestDeliveredSeqno(a1);
        assertFalse(copy.equals(md));
    }

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        md.add(new IpAddress(14526), 1,2,3);
        assertEquals(4, md.size());
    }


    public void testAddDigest() {
        Digest tmp=md.copy();
        md.add(tmp);
        assertEquals(3, md.size());
    }

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        assertEquals(0, md.size());
    }




    public void testConstructor2() {
        Digest dd=new Digest(3);
        assertEquals(0, dd.size());
    }

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        Digest dd=new Digest(3);
        assertEquals(0, dd.size());
    }


    public void testConstructor3() {
        Digest dd=new MutableDigest(3);
        assertEquals(0, dd.size());
    }

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        testResetAt();
    }




    public void testCopy2() {
        Digest tmp=d.copy();
        assertEquals(tmp, d);
    }

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        assertEquals(tmp, d);
    }




    public void testMutableCopy() {
        Digest copy=md.copy();
        System.out.println("md=" + md + "\ncopy=" + copy);
        assertEquals(md, copy);
        md.add(a1, 4, 500, 1000);
        System.out.println("md=" + md + "\ncopy=" + copy);
        assertFalse(md.equals(copy));

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    public void testSameSendersOtherIsNull() {
        assertFalse(d.sameSenders(null));
    }


    public void testSameSenders1MNullDifferentLenth() {
        d2=new Digest(1);
        assertFalse(d2.sameSenders(d));
    }

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        d2=new Digest(1);
        assertFalse(d2.sameSenders(d));
    }


    public void testSameSenders1MNullSameLength() {
        d2=new Digest(3);
        assertFalse(d2.sameSenders(d));
    }

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Related Classes of org.jgroups.util.Digest

org.jgroups.Address

org.jgroups.protocols.GMS_MergeTest

org.jgroups.protocols.pbcast.ClientGmsImpl

org.jgroups.protocols.pbcast.CoordGmsImpl

org.jgroups.protocols.pbcast.FLUSH

org.jgroups.protocols.pbcast.JoinRsp

org.jgroups.protocols.pbcast.NAKACK

org.jgroups.protocols.pbcast.ParticipantGmsImpl

org.jgroups.protocols.pbcast.STABLE

org.jgroups.protocols.pbcast.STABLE$StableHeader

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