Examples of org.jgroups.stack.ProtocolStack

org.jgroups.stack.ProtocolStack
A ProtocolStack manages a number of protocols layered above each other. It creates all protocol classes, initializes them and, when ready, starts all of them, beginning with the bottom most protocol. It also dispatches messages received from the stack to registered objects (e.g. channel, GMP) and sends messages sent by those objects down the stack.
The ProtocolStack makes use of the Configurator to setup and initialize stacks, and to destroy them again when not needed anymore @author Bela Ban

        }
    }


    private static void setStableGossip(JChannel... channels) {
        for(Channel channel: channels) {
            ProtocolStack stack=channel.getProtocolStack();
            STABLE stable=(STABLE)stack.findProtocol(STABLE.class);
            stable.setDesiredAverageGossip(2000);
        }
    }

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        return sb.toString();
    }


    private static void modifyConfigs(JChannel ... channels) throws Exception {
        for(JChannel ch: channels) {
            ProtocolStack stack=ch.getProtocolStack();
            stack.removeProtocol("MERGE2");
            stack.removeProtocol("VERIFY_SUSPECT");
            stack.removeProtocol("FC");
        }
    }

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            }
        }
    }


    private static void changeProperties(JChannel ch) {
        ProtocolStack stack=ch.getProtocolStack();
        GMS gms=(GMS)stack.findProtocol("GMS");
        if(gms != null) {
            gms.setViewBundling(true);
            gms.setMaxBundlingTime(300);
            gms.setPrintLocalAddr(false);
        }
        MERGE2 merge=(MERGE2)stack.findProtocol("MERGE2");
        if(merge != null) {
            merge.setMinInterval(2000);
            merge.setMaxInterval(5000);
        }
        NAKACK nakack=(NAKACK)stack.findProtocol(NAKACK.class);
        if(nakack != null)
            nakack.setLogDiscardMsgs(false);
    }

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                                          null, "mcast_addr", false, null);
            makeUnique(channel, num, str);
        }


        protected void makeUnique(Channel channel, int num, String mcast_address) throws Exception {
            ProtocolStack stack = channel.getProtocolStack();
            Protocol transport = stack.getTransport();


            if (transport instanceof UDP) {
                short mcast_port = ResourceManager.getNextMulticastPort(InetAddress.getByName(bind_addr));
                ((UDP) transport).setMulticastPort(mcast_port);
                if (mcast_address != null) {
                    ((UDP) transport).setMulticastAddress(InetAddress.getByName(mcast_address));
                } else {
                    String mcast_addr = ResourceManager.getNextMulticastAddress();
                    ((UDP) transport).setMulticastAddress(InetAddress.getByName(mcast_addr));
                }
            } else if (transport instanceof BasicTCP) {
                List<Short> ports = ResourceManager.getNextTcpPorts(InetAddress.getByName(bind_addr), num);
                ((TP) transport).setBindPort(ports.get(0));
                ((TP) transport).setPortRange(num);


                Protocol ping = stack.findProtocol(TCPPING.class);
                if (ping == null)
                    throw new IllegalStateException("TCP stack must consist of TCP:TCPPING - other config are not supported");


                List<String> initial_hosts = new LinkedList<String>();
                for (short port : ports) {

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            Util.sleep(1000);
        }
    }


    private static void modifyGMS(JChannel c) {
        ProtocolStack stack=c.getProtocolStack();
        GMS gms=(GMS)stack.findProtocol(GMS.class);
        if(gms != null)
            gms.setLogCollectMessages(false);
    }

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        gr2.stop();
    }
    
    private void modifyChannel(JChannel... channels) throws Exception {
        for (JChannel c : channels) {
            ProtocolStack stack = c.getProtocolStack();
            TUNNEL t = (TUNNEL) stack.getBottomProtocol();
            String s = bindAddress + "[" + gr1.getPort() + "],";
            s+=bindAddress+"[" + gr2.getPort() + "]";
            t.setGossipRouterHosts(s);
            t.init();
        }

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        Util.close(c2);
    }


    private static void disableBundling(JChannel ch) {
        ProtocolStack stack=ch.getProtocolStack();
        TP transport=stack.getTransport();
        if(transport != null) {
            transport.setEnableBundling(false);
        }
    }

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        Util.close(c2, c1);
    }


    public void testLastMessageDropped() throws Exception {
        DISCARD discard=new DISCARD();
        ProtocolStack stack=c1.getProtocolStack();
        stack.insertProtocol(discard, ProtocolStack.BELOW, NAKACK.class);
        c1.setOpt(Channel.LOCAL, false);


        Message m1=new Message(null, null, 1);
        Message m2=new Message(null, null, 2);
        Message m3=new Message(null, null, 3);

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    }




    private static void modifyStack(JChannel ... channels) {
        for(JChannel ch: channels) {
            ProtocolStack stack=ch.getProtocolStack();
            STABLE stable=(STABLE)stack.findProtocol(STABLE.class);
            if(stable == null)
                throw new IllegalStateException("STABLE protocol was not found");
            stable.setDesiredAverageGossip(2000);
        }
    }

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    public void testScopedUnicastMessages() throws Exception {
        sendMessages(c2.getAddress(), true);
    }


    public void testOrderWithScopedMulticasts() throws Exception {
        ProtocolStack stack=c2.getProtocolStack();
        Protocol neighbor=stack.findProtocol(UNICAST.class, UNICAST2.class);
        SCOPE scope=new SCOPE();
        stack.insertProtocolInStack(scope, neighbor, ProtocolStack.ABOVE);
        scope.init();


        c1.connect("SCOPE_Test");
        c2.connect("SCOPE_Test");
        assert c2.getView().size() == 2 : "c2.view is " + c2.getView();

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