Java Code Examples for org.zeromq.ZMQ.Socket#connect()

The following examples show how to use org.zeromq.ZMQ.Socket#connect() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ZThread.java    From aion with MIT License 6 votes vote down vote up 
public static Socket fork(ZContext ctx, IAttachedRunnable runnable, Object... args) {
    Socket pipe = ctx.createSocket(ZMQ.PAIR);

    if (pipe != null) {
        pipe.bind(String.format("inproc://zctx-pipe-%d", pipe.hashCode()));
    } else {
        return null;
    }

    // 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();

    return pipe;
}
Example 2
Source File: MsgExecutor.java    From aion_api with MIT License 6 votes vote down vote up 
private void callbackRun(Context ctx) {
    Socket cbWorker = ctx.socket(ZMQ.DEALER);
    cbWorker.setReceiveTimeOut(RECVTIMEOUT);
    cbWorker.connect(CB_BIND_ADDR + addrBindNumber);
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("connected!");
    }

    while (true) {
        byte[] rsp = cbWorker.recv(ZMQ.PAIR);
        if (this.running) {
            if (LOGGER.isTraceEnabled()) {
                LOGGER.trace(
                        "recv msg: [{}]", (rsp != null ? IUtils.bytes2Hex(rsp) : "= null"));
            }
            process(rsp);
        } else {
            break;
        }
    }

    LOGGER.info("closing!");
    cbWorker.close();
    LOGGER.info("closed!");
}
Example 3
Source File: TestAsyncMicroServiceMain.java    From ignite-book-code-samples with GNU General Public License v3.0 6 votes vote down vote up 
private static void sendAsync(int val, String account) throws IOException {
    ObjectMapper objectMapper = new ObjectMapper();
    Context context = ZMQ.context(1);

    //  Socket to talk to server
    Socket requester = context.socket(ZMQ.REQ);
    requester.connect("tcp://localhost:5559");
    System.out.println("launch and connect client.");
    ValidateRequest req = new ValidateRequest(account, new BigDecimal(val));

    //send request
    requester.send(objectMapper.writeValueAsString(req), 0);
    //receive response
    String responseStr = requester.recvStr(0);

    //parse and print reply
    ValidateResponse reply = objectMapper.readValue(responseStr, ValidateResponse.class);
    System.out.println("Received reply for request= " + req + " reply= " + reply + "");

    //  We never get here but clean up anyhow
    requester.close();
    context.term();
}
Example 4
Source File: AsyncBankServiceImpl.java    From ignite-book-code-samples with GNU General Public License v3.0 5 votes vote down vote up 
@Override
public void execute(ServiceContext serviceContext) throws Exception {
    ObjectMapper objectMapper = new ObjectMapper();
    Context context = ZMQ.context(1);

    //  Socket to talk to server
    Socket responder = context.socket(ZMQ.REP);
    responder.connect(zeroMqBrokerAddress);
    ZMQ.PollItem items[] = {new ZMQ.PollItem(responder, ZMQ.Poller.POLLIN)};
    while (!Thread.currentThread().isInterrupted() && !serviceContext.isCancelled()) {
        //  Wait for next request from client
        int rc = ZMQ.poll(items, 1000);
        if (rc == -1) {
            continue;
        }

        if (items[0].isReadable()) {
            String reqStr = responder.recvStr(0);
            System.out.printf("Received request: [%s]\n", reqStr);

            ValidateRequest req = objectMapper.readValue(reqStr, ValidateRequest.class);

            ValidateResponse result = validateOperation(req.getAccount(), req.getSum());
            System.out.printf("send response request: [%s]\n", result);

            responder.send(objectMapper.writeValueAsString(result));
        }
    }
    System.out.println("Stop async read!");

    //  We never get here but clean up anyhow
    responder.close();
    context.term();

}
Example 5
Source File: WebMQSubscriber.java    From XRTB with Apache License 2.0 5 votes vote down vote up 
public WebMQSubscriber(HttpServletResponse response, String port, String topics) {
	  // Prepare our context and subscriber
	
	
       Context context = ZMQ.context(1);
       Socket subscriber = context.socket(ZMQ.SUB);

       subscriber.connect("tcp://localhost:" + port);
       
       String [] parts = topics.split(",");
       for (String topic : parts) {
       	subscriber.subscribe(topic.getBytes());
       }

       while (!Thread.currentThread ().isInterrupted ()) {
           // Read envelope with address
           String address = subscriber.recvStr ();
           // Read message contents
           String contents = subscriber.recvStr ();
           Map m = new HashMap();
           m.put("topic", address);
           m.put("message", contents);
          
           try {
           	contents = mapper.writeValueAsString(m);
			response.getWriter().println(contents);
			response.flushBuffer();       	
		} catch (IOException e) {
			//e.printStackTrace();
			break;
		}               
       }
       subscriber.close ();
       context.term ();
}
Example 6
Source File: ProtocolProcessor.java    From aion with MIT License 4 votes vote down vote up 
private void callbackRun(Context ctx) {
    Socket sock = ctx.socket(ZMQ.DEALER);
    sock.connect(AION_ZMQ_CB_TH);

    while (!shutDown.get()) {
        TxPendingStatus tps;
        try {
            tps = ((HdlrZmq) this.handler).getTxStatusQueue().take();
        } catch (InterruptedException e1) {
            // TODO Auto-generated catch block
            if (LOG.isErrorEnabled()) {
                LOG.error("queue take exception - [{}]", e1.getMessage());
            }
            continue;
        }

        if (tps.isEmpty()) {
            continue;
        }

        byte[] rsp =
                tps.toTxReturnCode() != 105
                        ? ((HdlrZmq) this.handler)
                                .toRspMsg(
                                        tps.getMsgHash(), tps.toTxReturnCode(), tps.getError())
                        : ((HdlrZmq) this.handler)
                                .toRspMsg(
                                        tps.getMsgHash(),
                                        tps.toTxReturnCode(),
                                        tps.getError(),
                                        tps.getTxResult());
        if (LOG.isTraceEnabled()) {
            LOG.trace(
                    "callbackRun send. socketID: [{}], msgHash: [{}], txReturnCode: [{}]/n rspMsg: [{}]",
                    Hex.toHexString(tps.getSocketId()),
                    Hex.toHexString(tps.getMsgHash()),
                    tps.toTxReturnCode(),
                    Hex.toHexString(rsp));
        }
        try {
            sock.send(tps.getSocketId(), ZMQ.SNDMORE);
            sock.send(rsp, ZMQ.DONTWAIT);
        } catch (Exception e) {
            if (LOG.isErrorEnabled()) {
                LOG.error(
                        "ProtocolProcessor.callbackRun sock.send exception: " + e.getMessage());
            }
        }
    }
    sock.close();
    if (LOG.isDebugEnabled()) {
        LOG.debug("close callbackRun sockets...");
    }
}
Example 7
Source File: MsgExecutor.java    From aion_api with MIT License 4 votes vote down vote up 
private void heartBeatRun(Context ctx) {
    Socket hbWorker = ctx.socket(ZMQ.DEALER);
    hbWorker.connect(HB_BIND_ADDR + addrBindNumber);
    hbWorker.setReceiveTimeOut(1000);
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("hbWorker connected!");
    }

    int hbTolerance = HB_TOLERANCE;
    byte[] hbMsg = ApiUtils.toReqHeader(this.ver, Message.Servs.s_hb, Message.Funcs.f_NA);

    while (this.running && hbTolerance > 0) {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("send hb!");
        }
        if (!hbWorker.send(hbMsg, ZMQ.DONTWAIT)) {
            if (LOGGER.isErrorEnabled()) {
                LOGGER.error("send heartbeat msg failed.");
            }
            continue;
        }

        byte[] rsp = hbWorker.recv(ZMQ.PAIR);
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("recv msg: [{}]", (rsp != null ? IUtils.bytes2Hex(rsp) : "null"));
        }

        if (checkNotHbRspMsg(rsp)) {
            hbTolerance--;
        } else {
            hbTolerance = HB_TOLERANCE;
        }

        try {
            Thread.sleep(HB_POLL_MS);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    if (this.running) {
        this.running = false;
        LOGGER.warn("timeout, disconnect the connection!");
        hbWorker.close();
        terminate();
        LOGGER.info("closed!");
    }
}
Example 8
Source File: MsgExecutor.java    From aion_api with MIT License 4 votes vote down vote up 
private void workerRun(Context ctx) {
    Socket worker = ctx.socket(ZMQ.DEALER);
    worker.connect(WK_BIND_ADDR + addrBindNumber);
    worker.setReceiveTimeOut(RECVTIMEOUT);
    if (LOGGER.isDebugEnabled()) {
        LOGGER.debug("connected!");
    }

    while (true) {
        MsgReq msg = null;
        try {
            msg = queue.poll(RECVTIMEOUT, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        if (!this.running) {
            break;
        }

        if (msg != null && msg.req != null) {
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug("poll q: [{}]", IUtils.bytes2Hex(msg.hash));
            }

            if (!worker.send(msg.req, ZMQ.PAIR)) {
                if (LOGGER.isErrorEnabled()) {
                    LOGGER.error("send msg failed. Msg: [{}]", IUtils.bytes2Hex(msg.req));
                }
                continue;
            }

            byte[] rsp = worker.recv(ZMQ.PAIR);
            if (this.running) {
                if (rsp == null) {
                    if (LOGGER.isErrorEnabled()) {
                        LOGGER.error("recv msg: [null]");
                    }
                    return;
                }

                if (LOGGER.isDebugEnabled()) {
                    LOGGER.debug("recv msg: [{}]", IUtils.bytes2Hex(rsp));
                }
                process(rsp);
            } else {
                break;
            }
        }
    }

    LOGGER.info("closing!");
    worker.close();
    LOGGER.info("closed!");
}
Example 9
Source File: ZmqSendingMessageHandler.java    From spring-integration-zmq with Apache License 2.0 4 votes vote down vote up 
public void run() {
	
	Socket socket = null;
	
	synchronized (startupMonitor) {
		try {
			socket = contextManager.context().createSocket(socketType);
			if (bind) {
				socket.bind(address);
			} else {
				socket.connect(address);
			}
		} finally {
			startupMonitor.notify();
		}
	}
	
	while (!Thread.currentThread().isInterrupted()) {
		try {
			Message<?> message = messageQueue.take();
			byte[] payload = converter.convert(message.getPayload());
			if (topicBytes == null) {
				socket.send(payload);
			} else {
				byte[] msgTopic = null;
				if (message.getHeaders().containsKey("zmq.topic")) {
					msgTopic = message.getHeaders().get("zmq.topic", String.class).getBytes(ZMQ.CHARSET);
				} else {
					msgTopic = topicBytes;
				}
				byte[] topicPayload = new byte[msgTopic.length + payload.length];
				System.arraycopy(msgTopic, 0, topicPayload, 0, msgTopic.length);
				System.arraycopy(payload, 0, topicPayload, msgTopic.length, payload.length);
				socket.send(topicPayload);
			}
		} catch (Throwable t) {
               if (!running) {
               	break;
               }
               logger.error("Exception in zmq sending message handler", t);
		}
	}
	
	socket.close();
}