Examples of org.jgroups.blocks.PullPushAdapter

org.jgroups.blocks.PullPushAdapter
Allows a client of {@link org.jgroups.Channel} to be notified when messages have been receivedinstead of having to actively poll the channel for new messages. Typically used in the client role (receive()). As this class does not implement interface {@link org.jgroups.Transport}, but uses it for receiving messages, an underlying object has to be used to send messages (e.g. the channel on which an object of this class relies).
Multiple MembershipListeners can register with the PullPushAdapter; when a view is received, they will all be notified. There is one main message listener which sends and receives message. In addition, MessageListeners can register with a certain tag (identifier), and then send messages tagged with this identifier. When a message with such an identifier is received, the corresponding MessageListener will be looked up and the message dispatched to it. If no tag is found (default), the main MessageListener will receive the message. @author Bela Ban @version $Revision @deprecated Use {@link org.jgroups.Receiver} instead, this class will be removed in JGroups 3.0

    String props = System.getProperty("JGroupsProps", strbuf.toString());


    channel = new JChannel(props);
    channel.connect(channelName);
    
    new PullPushAdapter(channel, this, this);
    myAddr = channel.getLocalAddress();
  }

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        {
            try
            {
                channel = new JChannel(null);
                channel.connect("FKacheOS");
                new PullPushAdapter(channel, this, this);
            }
            catch (ChannelException e)
            {
                throw new IllegalStateException(e.getMessage());
            }

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            channel.setOpt(Channel.AUTO_RECONNECT, Boolean.TRUE);
            channel.setOpt(Channel.AUTO_GETSTATE, Boolean.TRUE);
            channel.setOpt(Channel.BLOCK, Boolean.TRUE);
            System.out.println("Connecting to " + group_name);
            channel.connect(group_name);
            ad=new PullPushAdapter(channel, this, this);
            channel.getState(null, 5000);
        }
        catch(Exception e) {
            ta.append(e.toString());
        }

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            m.put("additional_data", "bela".getBytes());
            channel.down(new Event(Event.CONFIG, m));
        }


        channel.connect("ViewDemo");
        new PullPushAdapter(channel, this);


        while(true) {
            Util.sleep(10000);
        }
    }

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                "shun=false;print_local_addr=true)";




        channel=new JChannel(props);
        channel.connect(channel_name);
        new PullPushAdapter(channel, this);
        my_addr=channel.getLocalAddress();
        if(my_addr != null)
            setTitle(my_addr.toString());
        pack();
        show();

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    public void start() throws Exception {
        try {
            ch=new JChannel(props);
            ch.connect("PerfTest-Group");
            adapter=new PullPushAdapter(ch, this, this);
            mainLoop();
        }
        finally {
            if(ch != null)
                ch.close();

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     **/
    public void testDisconnectConnectSendTwo() throws Exception {
        final Promise msgPromise=new Promise();
        JChannel coordinator=new JChannel(props);
        coordinator.connect("testgroup");
        PullPushAdapter ppa=
                new PullPushAdapter(coordinator,
                                    new PromisedMessageListener(msgPromise));
        ppa.start();


        channel=new JChannel(props);
        channel.connect("testgroup1");
        channel.disconnect();
        channel.connect("testgroup");
        channel.send(new Message(null, null, "payload"));
        Message msg=(Message)msgPromise.getResult(20000);
        assertTrue(msg != null);
        assertEquals("payload", msg.getObject());
        ppa.stop();
        coordinator.close();
        channel.close();
        System.out.println("Remaining threads are:");
        Util.printThreads();
    }

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        channel1=new JChannel(properties);
        System.out.print("Connecting to channel...");
        channel1.connect(groupName);
        System.out.println("channel1 connected, view is " + channel1.getView());


        adapter1=new PullPushAdapter(channel1);


        if(USE_DEBUGGER) {
            debugger1=new Debugger(channel1, CUMMULATIVE, "channel 1");
            debugger1.start();
        }


        // sleep one second before second member joins
        try {
            Thread.sleep(1000);
        }
        catch(InterruptedException ex) {
        }


            channel2=new JChannel(properties);
            channel2.connect(groupName);
            System.out.println("channel2 connected, view is " + channel2.getView());


            adapter2=new PullPushAdapter(channel2);


            if(USE_DEBUGGER) {
                debugger2=new Debugger(channel2, CUMMULATIVE, "channel 2");
                debugger2.start();
            }

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    public void testDisconnectConnectSendTwo_Default() throws Exception {


        final Promise msgPromise=new Promise();
        JChannel coordinator=new JChannel();
        coordinator.connect("testgroup");
        PullPushAdapter ppa= new PullPushAdapter(coordinator,
                                                 new PromisedMessageListener(msgPromise));
        ppa.start();


        channel=new JChannel();
        channel.connect("testgroup1");
        channel.disconnect();
        channel.connect("testgroup");


        channel.send(new Message(null, null, "payload"));


        Message msg=(Message)msgPromise.getResult(20000);
        assertTrue(msg != null);
        assertEquals("payload", msg.getObject());


        ppa.stop();
        coordinator.close();
    }

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            String props=getTUNNELProps(routerPort, routerPort);


            final Promise msgPromise=new Promise();
            JChannel coordinator=new JChannel(props);
            coordinator.connect("testgroup");
            PullPushAdapter ppa=
                    new PullPushAdapter(coordinator,
                                        new PromisedMessageListener(msgPromise));
            ppa.start();


            channel=new JChannel(props);
            channel.connect("testgroup1");
            channel.disconnect();
            channel.connect("testgroup");


            channel.send(new Message(null, null, "payload"));


            Message msg=(Message)msgPromise.getResult(20000);
            assertTrue(msg != null);
            assertEquals("payload", msg.getObject());


            ppa.stop();
            coordinator.close();
        }
        finally {
            Utilities.stopGossipRouter();
        }

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