Examples with Socket org.zeromq.ZMQ.Socket used on opensource projects

Example 11 with Socket

use of org.zeromq.ZMQ.Socket in project jeromq by zeromq.

the class psenvsub method main.

public static void main(String[] args) {
    // Prepare our context and subscriber
    Context context = ZMQ.context(1);
    Socket subscriber = context.socket(ZMQ.SUB);
    subscriber.connect("tcp://localhost:5563");
    subscriber.subscribe("B".getBytes(ZMQ.CHARSET));
    while (!Thread.currentThread().isInterrupted()) {
        // Read envelope with address
        String address = subscriber.recvStr();
        // Read message contents
        String contents = subscriber.recvStr();
        System.out.println(address + " : " + contents);
    }
    subscriber.close();
    context.term();
}

Example 12 with Socket

use of org.zeromq.ZMQ.Socket in project jeromq by zeromq.

the class mtserver method main.

public static void main(String[] args) {
    Context context = ZMQ.context(1);
    Socket clients = context.socket(ZMQ.ROUTER);
    clients.bind("tcp://*:5555");
    Socket workers = context.socket(ZMQ.DEALER);
    workers.bind("inproc://workers");
    for (int thread_nbr = 0; thread_nbr < 5; thread_nbr++) {
        Thread worker = new Worker(context);
        worker.start();
    }
    //  Connect work threads to client threads via a queue
    ZMQ.proxy(clients, workers, null);
    //  We never get here but clean up anyhow
    clients.close();
    workers.close();
    context.term();
}

Example 13 with Socket

use of org.zeromq.ZMQ.Socket in project jeromq by zeromq.

the class clonecli3 method run.

public void run() {
    ZContext ctx = new ZContext();
    Socket snapshot = ctx.createSocket(ZMQ.DEALER);
    snapshot.connect("tcp://localhost:5556");
    Socket subscriber = ctx.createSocket(ZMQ.SUB);
    subscriber.connect("tcp://localhost:5557");
    subscriber.subscribe(ZMQ.SUBSCRIPTION_ALL);
    Socket push = ctx.createSocket(ZMQ.PUSH);
    push.connect("tcp://localhost:5558");
    // get state snapshot
    long sequence = 0;
    snapshot.send("ICANHAZ?".getBytes(ZMQ.CHARSET), 0);
    while (true) {
        kvsimple kvMsg = kvsimple.recv(snapshot);
        if (kvMsg == null)
            //  Interrupted
            break;
        sequence = kvMsg.getSequence();
        if ("KTHXBAI".equalsIgnoreCase(kvMsg.getKey())) {
            System.out.println("Received snapshot = " + kvMsg.getSequence());
            // done
            break;
        }
        System.out.println("receiving " + kvMsg.getSequence());
        clonecli3.kvMap.put(kvMsg.getKey(), kvMsg);
    }
    Poller poller = ctx.createPoller(1);
    poller.register(subscriber);
    Random random = new Random();
    // now apply pending updates, discard out-of-getSequence messages
    long alarm = System.currentTimeMillis() + 5000;
    while (true) {
        int rc = poller.poll(Math.max(0, alarm - System.currentTimeMillis()));
        if (rc == -1)
            //  Context has been shut down
            break;
        if (poller.pollin(0)) {
            kvsimple kvMsg = kvsimple.recv(subscriber);
            if (kvMsg == null)
                //  Interrupted
                break;
            if (kvMsg.getSequence() > sequence) {
                sequence = kvMsg.getSequence();
                System.out.println("receiving " + sequence);
                clonecli3.kvMap.put(kvMsg.getKey(), kvMsg);
            }
        }
        if (System.currentTimeMillis() >= alarm) {
            int key = random.nextInt(10000);
            int body = random.nextInt(1000000);
            ByteBuffer b = ByteBuffer.allocate(4);
            b.asIntBuffer().put(body);
            kvsimple kvUpdateMsg = new kvsimple(key + "", 0, b.array());
            kvUpdateMsg.send(push);
            alarm = System.currentTimeMillis() + 1000;
        }
    }
    ctx.destroy();
}

Example 14 with Socket

use of org.zeromq.ZMQ.Socket in project jeromq by zeromq.

the class clonecli4 method run.

public void run() {
    ZContext ctx = new ZContext();
    Socket snapshot = ctx.createSocket(ZMQ.DEALER);
    snapshot.connect("tcp://localhost:5556");
    Socket subscriber = ctx.createSocket(ZMQ.SUB);
    subscriber.connect("tcp://localhost:5557");
    subscriber.subscribe(SUBTREE.getBytes(ZMQ.CHARSET));
    Socket push = ctx.createSocket(ZMQ.PUSH);
    push.connect("tcp://localhost:5558");
    // get state snapshot
    snapshot.sendMore("ICANHAZ?");
    snapshot.send(SUBTREE);
    long sequence = 0;
    while (true) {
        kvsimple kvMsg = kvsimple.recv(snapshot);
        if (kvMsg == null)
            //  Interrupted
            break;
        sequence = kvMsg.getSequence();
        if ("KTHXBAI".equalsIgnoreCase(kvMsg.getKey())) {
            System.out.println("Received snapshot = " + kvMsg.getSequence());
            // done
            break;
        }
        System.out.println("receiving " + kvMsg.getSequence());
        clonecli4.kvMap.put(kvMsg.getKey(), kvMsg);
    }
    Poller poller = ctx.createPoller(1);
    poller.register(subscriber);
    Random random = new Random();
    // now apply pending updates, discard out-of-getSequence messages
    long alarm = System.currentTimeMillis() + 5000;
    while (true) {
        int rc = poller.poll(Math.max(0, alarm - System.currentTimeMillis()));
        if (rc == -1)
            //  Context has been shut down
            break;
        if (poller.pollin(0)) {
            kvsimple kvMsg = kvsimple.recv(subscriber);
            if (kvMsg == null)
                //  Interrupted
                break;
            if (kvMsg.getSequence() > sequence) {
                sequence = kvMsg.getSequence();
                System.out.println("receiving " + sequence);
                clonecli4.kvMap.put(kvMsg.getKey(), kvMsg);
            }
        }
        if (System.currentTimeMillis() >= alarm) {
            String key = String.format("%s%d", SUBTREE, random.nextInt(10000));
            int body = random.nextInt(1000000);
            ByteBuffer b = ByteBuffer.allocate(4);
            b.asIntBuffer().put(body);
            kvsimple kvUpdateMsg = new kvsimple(key, 0, b.array());
            kvUpdateMsg.send(push);
            alarm = System.currentTimeMillis() + 1000;
        }
    }
    ctx.destroy();
}

Example 15 with Socket

use of org.zeromq.ZMQ.Socket in project jeromq by zeromq.

the class clonesrv2 method run.

public void run() {
    ZContext ctx = new ZContext();
    Socket publisher = ctx.createSocket(ZMQ.PUB);
    publisher.bind("tcp://*:5557");
    Socket updates = ZThread.fork(ctx, new StateManager());
    Random random = new Random();
    long sequence = 0;
    while (!Thread.currentThread().isInterrupted()) {
        long currentSequenceNumber = ++sequence;
        int key = random.nextInt(10000);
        int body = random.nextInt(1000000);
        ByteBuffer b = ByteBuffer.allocate(4);
        b.asIntBuffer().put(body);
        kvsimple kvMsg = new kvsimple(key + "", currentSequenceNumber, b.array());
        kvMsg.send(publisher);
        // send a message to State Manager thead.
        kvMsg.send(updates);
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
        }
    }
    System.out.printf(" Interrupted\n%d messages out\n", sequence);
    ctx.destroy();
}