Package org.zeromq.ZMQ

Examples of org.zeromq.ZMQ.Socket.connect()

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        ZContext ctx = new ZContext();

        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zmsg.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zmsg.test");

        // Test send and receive of a single ZMsg
        ZMsg msg = new ZMsg();
        ZFrame frame = new ZFrame("Hello");
        msg.addFirst(frame);
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        ZContext ctx = new ZContext();

        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zmsg.test2");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zmsg.test2");

        ZMsg msg = new ZMsg();
        for (int i = 0; i < 10; i++)
            msg.addString("Frame" + i);
        ZMsg copy = msg.duplicate();
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        ZContext ctx = new ZContext();

        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zmsg.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zmsg.test");
       
        ZMsg msg = ZMsg.newStringMsg("Foo", "Bar");
        msg.send(output);
       
        ZMsg msg2 = ZMsg.recvMsg(input);
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    public void testSending() {
        ZContext ctx = new ZContext();
        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zframe.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zframe.test");

        // Send five different frames, test ZFRAME_MORE
        for (int i = 0; i < 5; i++) {
            ZFrame f = new ZFrame("Hello".getBytes());
            boolean rt = f.send(output, ZMQ.SNDMORE);
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    public void testCopyingAndDuplicating() {
        ZContext ctx = new ZContext();
        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zframe.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zframe.test");

        ZFrame f = new ZFrame("Hello");
        ZFrame copy = f.duplicate();
        assertTrue(copy.equals(f));
        f.destroy();
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    public void testReceiving() {
        ZContext ctx = new ZContext();
        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zframe.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zframe.test");

        // Send same frame five times
        ZFrame f = new ZFrame("Hello".getBytes());
        for (int i = 0; i < 5; i++) {
            f.send(output, ZMQ.SNDMORE);
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    public void testStringFrames() {
        ZContext ctx = new ZContext();
        Socket output = ctx.createSocket(ZMQ.PAIR);
        output.bind("inproc://zframe.test");
        Socket input = ctx.createSocket(ZMQ.PAIR);
        input.connect("inproc://zframe.test");

        ZFrame f1 = new ZFrame("Hello");
        assertEquals(5, f1.getData().length);
        f1.send(output, 0);
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        // Connect child pipe to our pipe
        ZContext ccontext = ZContext.shadow(ctx);
        Socket cpipe = ccontext.createSocket(ZMQ.PAIR);
        if (cpipe == null)
            return null;
        cpipe.connect(String.format("inproc://zctx-pipe-%d", pipe.hashCode()));

        // Prepare child thread
        Thread shim = new ShimThread(ccontext, runnable, args, cpipe);
        shim.start();
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        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());
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        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());
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