Package org.zeromq.ZMQ

Examples of org.zeromq.ZMQ.Context

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    @Test
    public void testEventClosed() {
        if (ZMQ.version_full() < ZMQ.make_version(3, 2, 2)) // Monitor added in 3.2.2
            return;
       
        Context context = ZMQ.context(1);
        Event event;
       
        Socket socket = context.socket(ZMQ.REP);
        Socket monitor = context.socket(ZMQ.PAIR);
        monitor.setReceiveTimeOut(100);
       
        socket.bindToRandomPort("tcp://127.0.0.1");
       
        assertTrue(socket.monitor("inproc://monitor.socket", ZMQ.EVENT_CLOSED));
        monitor.connect("inproc://monitor.socket");
       
        socket.close();
        event = Event.recv(monitor);
        assertNotNull("No event was received", event);
        assertEquals(ZMQ.EVENT_CLOSED, event.getEvent());
       
        monitor.close();
        context.term();
    }
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    @Test
    public void testEventDisconnected() {
        if (ZMQ.version_full() < ZMQ.make_version(3, 2, 2)) // Monitor added in 3.2.2
            return;
       
        Context context = ZMQ.context(1);
        Event event;
       
        Socket socket = context.socket(ZMQ.REP);
        Socket monitor = context.socket(ZMQ.PAIR);
        Socket helper = context.socket(ZMQ.REQ);
        monitor.setReceiveTimeOut(100);
       
        int port = socket.bindToRandomPort("tcp://127.0.0.1");
        helper.connect("tcp://127.0.0.1:" + port);
       
        assertTrue(socket.monitor("inproc://monitor.socket", ZMQ.EVENT_DISCONNECTED));
        monitor.connect("inproc://monitor.socket");

        byte[] req ="request".getBytes();
        helper.send(req, 100);
        assertArrayEquals(socket.recv(100), req);

        helper.close();
        event = Event.recv(monitor);
        assertNotNull("No event was received", event);
        assertEquals(ZMQ.EVENT_DISCONNECTED, event.getEvent());
       
        socket.close();
        monitor.close();
        context.term();
    }
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    @Test
    public void testEventMonitorStopped() {
        if (ZMQ.version_full() < ZMQ.make_version(4, 0, 0)) // EVENT_MONITOR_STOPPED added in 4.0.0
            return;
       
        Context context = ZMQ.context(1);
        Event event;
       
        Socket socket = context.socket(ZMQ.REP);
        Socket monitor = context.socket(ZMQ.PAIR);
        monitor.setReceiveTimeOut(100);
       
        assertTrue(socket.monitor("inproc://monitor.socket", ZMQ.EVENT_MONITOR_STOPPED));
        monitor.connect("inproc://monitor.socket");
       
        socket.monitor(null, 0);
        event = Event.recv(monitor);
        assertNotNull("No event was received", event);
        assertEquals(ZMQ.EVENT_MONITOR_STOPPED, event.getEvent());
       
        socket.close();
        monitor.close();
        context.term();
    }
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    }

    @Test
    public void testOffset() throws Exception
    {
        Context ctx = ZMQ.context(1);
        Socket sock = ctx.socket(ZMQ.DEALER);

        ZLog zlog = ZLogManager.instance().get(topic);
        SegmentInfo[] infos = zlog.segments();

        sock.setIdentity(ZPUtils.genTopicIdentity(topic, 0));
        sock.setLinger(100);

        sock.connect("tcp://127.0.0.1:6556");

        //  Earliest offset
        sock.sendMore("OFFSET");
        sock.send(ByteBuffer.allocate(8).putLong(-2).array());

        Msg status = sock.base().recv(0);
        assertTrue(status.hasMore());
        assertEquals(100, status.data()[0]);

        Msg oldest = sock.base().recv(0);
        assertFalse(oldest.hasMore());
        assertEquals(infos[0].start(), oldest.buf().getLong());

        //  Latest offset
        sock.sendMore("OFFSET");
        sock.send(ByteBuffer.allocate(8).putLong(-1).array());

        status = sock.base().recv(0);
        assertTrue(status.hasMore());
        assertEquals(100, status.data()[0]);

        Msg latest = sock.base().recv(0);
        assertTrue(latest.hasMore());
        assertEquals(infos[infos.length - 1].start(), latest.buf().getLong());

        Msg last = sock.base().recv(0);
        assertFalse(last.hasMore());
        assertEquals(infos[infos.length - 1].offset(), last.buf().getLong());

        //  Modified before
        sock.sendMore("OFFSET");
        sock.send(ByteBuffer.allocate(8).putLong(System.currentTimeMillis()).array());

        status = sock.base().recv(0);
        assertTrue(status.hasMore());
        assertEquals(100, status.data()[0]);

        List<Long> offsetList = new ArrayList<Long>();

        while (true) {
            Msg msg = sock.base().recv(0);
            offsetList.add(msg.buf().getLong());
            if (!msg.hasMore())
                break;
        }
        assertEquals(infos.length + 1, offsetList.size());
        for (int i = 0; i < infos.length; i++) {
            assertEquals(infos[i].start(), (long) offsetList.get(i));
        }
        assertEquals(infos[infos.length - 1].offset(), (long) offsetList.get(infos.length));


        sock.close();
        ctx.term();
    }
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    }

    @Test
    public void testFetch() throws Exception
    {
        Context ctx = ZMQ.context(1);
        Socket sock = ctx.socket(ZMQ.DEALER);

        ZLog zlog = ZLogManager.instance().get(topic);
        SegmentInfo[] infos = zlog.segments();
        SegmentInfo last = infos[infos.length - 1];

        sock.setIdentity(ZPUtils.genTopicIdentity(topic, 0));

        sock.connect("tcp://127.0.0.1:6556");

        //  Latest offset
        sock.sendMore("FETCH");
        sock.sendMore(ByteBuffer.allocate(8).putLong(last.start()).array());
        sock.send(ByteBuffer.allocate(8).putLong(Integer.MAX_VALUE).array());

        Msg status = sock.base().recv(0);
        assertEquals(100, status.data()[0]);

        Msg result = sock.base().recv(0);
        assertEquals((int) (last.offset() - last.start()), result.size());

        Iterator<Msg> it = new MsgIterator(result.buf(), false);
        while (it.hasNext()) {
            it.next();
        }

        sock.close();
        ctx.term();
    }
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    @Test
    public void testError() throws Exception
    {

        Context ctx = ZMQ.context(1);
        Socket router = ctx.socket(ZMQ.ROUTER);
        router.bind("tcp://127.0.0.1:6001");
        router.setEncoder(Persistence.PersistEncoder.class);

        Socket dealer = ctx.socket(ZMQ.DEALER);
        dealer.setIdentity("A".getBytes());
        dealer.connect("tcp://127.0.0.1:6001");

        Thread.sleep(1000);
        router.sendMore("A");
        router.sendMore(new byte[] {Persistence.MESSAGE_ERROR});
        router.send(new byte[] {Persistence.STATUS_INTERNAL_ERROR});

        assertEquals(dealer.recv()[0], Persistence.STATUS_INTERNAL_ERROR);

        dealer.close();
        router.close();
        ctx.term();
    }
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    @Test
    public void testResponse() throws Exception
    {

        Context ctx = ZMQ.context(1);
        Socket router = ctx.socket(ZMQ.ROUTER);
        router.bind("tcp://127.0.0.1:6002");
        router.setEncoder(Persistence.PersistEncoder.class);

        Socket dealer = ctx.socket(ZMQ.DEALER);
        dealer.setIdentity("A".getBytes());
        dealer.connect("tcp://127.0.0.1:6002");

        Thread.sleep(1000);
        router.sendMore("A");
        router.sendMore(new byte[] {Persistence.MESSAGE_RESPONSE});
        router.sendMore(new byte[] {STATUS_OK});
        router.send(ByteBuffer.wrap(new byte[8]).putLong(100).array());

        assertEquals(dealer.recv()[0], STATUS_OK);
        assertEquals(dealer.recv().length, 8);

        dealer.close();
        router.close();
        ctx.term();
    }
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        buf.put(longdata.getBytes());

        raf.close();
        ch.close();

        Context ctx = ZMQ.context(1);
        Socket router = ctx.socket(ZMQ.ROUTER);
        router.bind("tcp://127.0.0.1:6003");
        router.setEncoder(Persistence.PersistEncoder.class);

        Socket dealer = ctx.socket(ZMQ.DEALER);
        dealer.setIdentity("A".getBytes());
        dealer.connect("tcp://127.0.0.1:6003");

        Thread.sleep(1000);
        router.sendMore("A");
        router.sendMore(new byte[] {Persistence.MESSAGE_FILE});
        router.sendMore(new byte[] {STATUS_OK});
        router.sendMore(path);
        router.sendMore(ByteBuffer.wrap(new byte[8]).putLong(0).array());
        router.send(ByteBuffer.wrap(new byte[8]).putLong(329).array());

        assertEquals(dealer.recv()[0], STATUS_OK);
        ByteBuffer content = ByteBuffer.wrap(dealer.recv());

        assertEquals(content.limit(), 329);
        assertEquals(0, content.get());
        int length = content.get();
        assertEquals(5, length);
        byte[] data = new byte[length];
        content.get(data);
        assertEquals("12345", new String(data));

        assertEquals(1, content.get());
        length = content.get();
        assertEquals(11, length);
        data = new byte[length];
        content.get(data);
        assertEquals("67890abcdef", new String(data));

        assertEquals(2, content.get());
        length = (int) content.getLong();
        assertEquals(300, length);
        data = new byte[length];
        content.get(data);
        assertEquals(longdata, new String(data));

        assertEquals(false, content.hasRemaining());

        dealer.close();
        router.close();
        ctx.term();
    }
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    }

    @Test
    public void testSend() throws Exception
    {
        Context ctx = ZMQ.context(1);
        Socket sock = ctx.socket(ZMQ.DEALER);

        ZLog zlog = ZLogManager.instance().get(topic);
        long offset = zlog.offset();
        String data = "hello";

        System.out.println("previous offset " + zlog.path().getAbsolutePath() + ":" + offset);

        sock.setIdentity(ZPUtils.genTopicIdentity(topic, 0));
        sock.setLinger(100);

        sock.connect("tcp://127.0.0.1:5557");


        boolean ret = sock.send(data);
        assertTrue(ret);

        // wait until flush
        Thread.sleep(1000);
        zlog.flush();

        assertEquals(zlog.offset(), offset + data.length() + 2);

        sock.close();
        ctx.term();
    }
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    }

    @Test
    public void testSendPush() throws Exception
    {
        Context ctx = ZMQ.context(1);
        Socket sock = ctx.socket(ZMQ.PUSH);

        ZLog zlog = ZLogManager.instance().get(topic);
        long offset = zlog.offset();
        String data = "hello";

        System.out.println("previous offset " + zlog.path().getAbsolutePath() + ":" + offset);

        sock.setIdentity(ZPUtils.genTopicIdentity(topic, 0));
        sock.setLinger(100);

        sock.connect("tcp://127.0.0.1:5557");


        boolean ret = sock.send(data);
        assertTrue(ret);

        // wait until flush
        Thread.sleep(1000);
        zlog.flush();

        assertEquals(zlog.offset(), offset + data.length() + 2);

        sock.close();
        ctx.term();
    }
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