Example usage for com.rabbitmq.client Connection createChannel

List of usage examples for com.rabbitmq.client Connection createChannel

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Introduction

In this page you can find the example usage for com.rabbitmq.client Connection createChannel.

Prototype

Channel createChannel() throws IOException;

Source Link

Document

Create a new channel, using an internally allocated channel number.

Usage

From source file:com.project.finalproject.Recv.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

    Consumer consumer = new DefaultConsumer(channel) {
        @Override/*from w ww.j a v  a2 s.  c o  m*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");

            System.out.println(" [x] Received '" + message + "'");
        }
    };
    channel.basicConsume(QUEUE_NAME, true, consumer);
}

From source file:com.project.finalproject.Send.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);

    try {//from  ww  w  .  j  a  va2 s  .  c o m
        InputStream is = new FileInputStream("hr.json");
        String jsontxt = IOUtils.toString(is);
        JSONObject jsonObject = new JSONObject(jsontxt);
        JSONArray stream = jsonObject.getJSONArray("stream");
        for (int i = 0; i < stream.length(); i++) {
            String message = stream.getJSONObject(i).getString("value");
            channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
            System.out.println(" [x] Sent '" + message + "'");
            TimeUnit.SECONDS.sleep(1);
        }
    } catch (FileNotFoundException fe) {
        fe.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }

    channel.close();
    connection.close();
}

From source file:com.qt.core.util.MqConnectionUtil.java

License:Open Source License

public Channel getChannel(String key, String queueName, boolean durable) throws IOException {
    Connection connection = connectionMap.get(key);
    Channel channel = channelMap.get(key + queueName);
    if (channel == null || !channel.isOpen()) {
        channel = connection.createChannel();
        channel.queueDeclare(queueName, durable, false, false, null); // ???
        channelMap.put(key + queueName, channel);
    }/*w ww .  ja  v a 2  s.c  o m*/
    return channel;
}

From source file:com.service.OperationFacadeREST.java

@POST
@Override// w w  w.j  ava2  s .c om
@Consumes({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public void create(Operation entity) {
    if (!entity.getState().equals("waiting")) {
        super.create(entity);
        return;
    }
    if (entity.getOperationType())//venda
    {
        ArrayList<ClientStock> l = new ArrayList<>(getEntityManager()
                .find(Client.class, entity.getFkOwnerId().getClientId()).getClientStockCollection());
        Boolean fail = false;
        for (int i = 0; i < l.size(); i++) {
            if (l.get(i).getStock().equals(entity.getFkStockId())) {
                if (l.get(i).getQuantity() < entity.getQuantity())
                    return;
                l.get(i).setQuantity(l.get(i).getQuantity() - entity.getQuantity());
                getEntityManager().persist(l.get(i));
                entity.getFkOwnerId().setClientStockCollection(l);

                entity.setCreationDate(Date.from(Instant.now()));
                super.create(entity);
            }
        }
        if (fail)
            return;
    } else {
        entity.setCreationDate(Date.from(Instant.now()));
        if (entity.getFkStockId().getQuantity() > entity.getQuantity()) {

            System.out.println("yes");
            super.create(entity);
        } else {
            return;
        }
    }

    try {

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        channel.queueDeclare("hello", false, false, false, null);
        System.out.println(super.findAll().get(super.findAll().size() - 1).getOperationId() + ","
                + entity.getFkOwnerId().getName() + "," + entity.getFkStockId().getName() + ","
                + entity.getQuantity());

        String message = super.findAll().get(super.findAll().size() - 1).getOperationId() + ","
                + entity.getFkOwnerId().getName() + "," + entity.getFkStockId().getName() + ","
                + entity.getQuantity();
        channel.basicPublish("", "hello", null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");
        channel.close();
        connection.close();
    } catch (IOException ex) {
        Logger.getLogger(ClientFacadeREST.class.getName()).log(Level.SEVERE, null, ex);
    } catch (TimeoutException ex) {
        Logger.getLogger(ClientFacadeREST.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:com.shopwiki.roger.event.MessageWorker.java

License:Apache License

/**
 * Call this to start consuming & handling messages.
 *///from ww  w . j  av  a  2 s .c  o  m
public void start() throws IOException {
    int numThreads = 1; // TODO: Parameterize this (will require multiple channels) ???
    Connection conn = null;
    try {
        conn = daemon ? connector.getDaemonConnection(numThreads) : connector.getConnection(numThreads);
        conn.addShutdownListener(reconnector);
        channel = conn.createChannel();

        MessageConsumer<T> consumer = new MessageConsumer<T>(handler, channel, queueArgs, route);
        consumer.start();
    } catch (IOException e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    } catch (RuntimeException e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    } catch (Error e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    }
}

From source file:com.shopwiki.roger.event.MessagingManager.java

License:Apache License

private static List<Channel> createChannels(Connection conn, int n) throws IOException {
    List<Channel> channels = Lists.newArrayList();
    for (int i = 0; i < n; i++) {
        Channel channel = conn.createChannel();
        channels.add(channel);/*from  w  ww .  j a  va  2  s  .c o m*/
    }
    return ImmutableList.copyOf(channels);
}

From source file:com.shopwiki.roger.example.ExampleEventHandler.java

License:Apache License

public static void main(String[] args) throws Exception {

    MessageHandler<String> handler = new MessageHandler<String>() {
        @Override// ww  w .j  av a2 s  .  co m
        public TypeReference<String> getMessageType() {
            return new TypeReference<String>() {
            };
        }

        @Override
        public void handleMessage(String name) {
            System.out.println("Hello " + name + "!");
        }
    };

    // Create the exchange if it doesn't exist.
    {
        Connection conn = connector.getConnection(1);
        Channel channel = conn.createChannel();
        channel.exchangeDeclare(route.exchange, "topic");
        conn.close();
    }

    boolean daemon = false;

    MessageWorker<String> worker = new MessageWorker<String>(connector, handler, route, daemon);
    worker.start();
}

From source file:com.shopwiki.roger.example.ExampleEventSender.java

License:Apache License

public static void main(String[] args) throws Exception {
    Connection conn = ExampleRpcServer.connector.getDaemonConnection(1);
    Channel channel = conn.createChannel();
    MessagingUtil.sendMessage(channel, ExampleEventHandler.route, "Robert");
}

From source file:com.shopwiki.roger.example.ExampleRpcClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    Connection conn = ExampleRpcServer.connector.getDaemonConnection(1);
    Channel channel = conn.createChannel();
    Route route = new Route("", "RpcExample_HelloWorld");
    Map<String, Object> queueArgs = null;

    TypeReference<Response> responseType = new TypeReference<Response>() {
    };/*  ww  w  .  j av  a 2s  .  c  o m*/
    RpcClient<Response> client = RpcClient.create(channel, route, queueArgs, responseType);

    Request request = new Request();
    request.name = "Robert";

    Future<RpcResponse<Response>> future = client.sendRequest(request);
    RpcResponse<Response> response = future.get(5, TimeUnit.SECONDS);

    System.out.println("HEADERS:\n" + response.getHeaders());
    System.out.println();
    System.out.println("BODY:\n" + MessagingUtil.prettyPrintMessage(response.getBody()));
}

From source file:com.shopwiki.roger.rpc.BasicWorkerFactory.java

License:Apache License

@Override
public RpcWorkers createWorkers(String queuePrefix) throws IOException {
    Connection conn = null;
    try {//  w  ww .j  a va  2  s.c  o  m
        conn = connector.getConnection(numThreads);

        List<Channel> channels = new ArrayList<Channel>();
        for (int i = 0; i < numThreads; i++) {
            Channel channel = conn.createChannel();
            channel.basicQos(1);
            channels.add(channel);
        }

        RpcWorkers workers = new RpcWorkers(conn);

        for (String procedureName : nameToHandler.keySet()) {
            RequestHandler<?, ?> handler = nameToHandler.get(procedureName);
            RpcWorker worker = new RpcWorker(handler, channels, queuePrefix, procedureName);
            workers.add(worker);
        }

        return workers;
        // TODO: Figure out a way to do this Exception handling outside of here ???
    } catch (IOException e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    } catch (RuntimeException e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    } catch (Error e) {
        RabbitConnector.closeConnection(conn);
        throw e;
    }
}