Examples with DeliverCallback com.rabbitmq.client.DeliverCallback used on opensource projects

Example 31 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project force-oneself by Force-oneself.

the class RPCServer method main.

public static void main(String[] argv) throws Exception {
    Channel channel = RabbitMQUtils.getChannel();
    channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);
    channel.queuePurge(RPC_QUEUE_NAME);
    channel.basicQos(1);
    System.out.println(" [x] Awaiting RPC requests");
    Object monitor = new Object();
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        AMQP.BasicProperties replyProps = new AMQP.BasicProperties.Builder().correlationId(delivery.getProperties().getCorrelationId()).build();
        String response = "";
        try {
            String message = new String(delivery.getBody(), StandardCharsets.UTF_8);
            int n = Integer.parseInt(message);
            System.out.println(" [.] fib(" + message + ")");
            response += fib(n);
        } catch (RuntimeException e) {
            System.out.println(" [.] " + e.toString());
        } finally {
            channel.basicPublish("", delivery.getProperties().getReplyTo(), replyProps, response.getBytes(StandardCharsets.UTF_8));
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            // RabbitMq consumer worker thread notifies the RPC server owner thread
            synchronized (monitor) {
                monitor.notify();
            }
        }
    };
    channel.basicConsume(RPC_QUEUE_NAME, false, deliverCallback, (consumerTag -> {
    }));
    // Wait and be prepared to consume the message from RPC client.
    while (true) {
        synchronized (monitor) {
            try {
                monitor.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

Example 32 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project force-oneself by Force-oneself.

the class ReceiveLogsTopics method main.

public static void main(String[] argv) throws Exception {
    Channel channel = RabbitMQUtils.getChannel();
    channel.exchangeDeclare(EXCHANGE_NAME, "topic");
    String queueName = channel.queueDeclare().getQueue();
    if (argv.length < 1) {
        System.err.println("Usage: ReceiveLogsTopic [binding_key]...");
        System.exit(1);
    }
    for (String bindingKey : argv) {
        channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
    }
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), StandardCharsets.UTF_8);
        System.out.println(" [x] Received '" + delivery.getEnvelope().getRoutingKey() + "':'" + message + "'");
    };
    channel.basicConsume(queueName, true, deliverCallback, consumerTag -> {
    });
}

Example 33 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project amos2022ss02-audit-chain by amosproj.

the class ConsumerClientBlockchain method start.

/**
 * Start receiving Messages from the RabbitMQ Server.
 * @throws IOException if an I/O error occurs
 * @throws TimeoutException if the timeout expires
 */
public void start() throws IOException, TimeoutException {
    System.out.println("Starting to receive Messages.");
    Connection connection = this.factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    System.out.println(" [*] Waiting for messages.");
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        AggregateMessage message;
        try {
            message = (AggregateMessage) AggregateConsumerClient.deserializeMessage(delivery.getBody());
        } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
        }
        Vector<Message> messages = message.getMessages();
        Integer[] seq_numbers = new Integer[messages.size()];
        String[] transactions = new String[messages.size()];
        int iterator = 0;
        for (Message m : messages) {
            // if you use instanceOf you could accept both Messages and HmacMessages
            m = (Hmac_Message) m;
            seq_numbers[iterator] = m.getSequence_number();
            transactions[iterator] = m.getMessage();
            iterator++;
        }
        blockchain.addABlock(seq_numbers, transactions);
    // blockchain.printBlockchain();
    };
    channel.basicConsume(QUEUE_NAME, true, deliverCallback, consumerTag -> {
    });
}

Example 34 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project amos2022ss02-audit-chain by amosproj.

the class ConsumerClient method start.

/**
 * Start receiving Messages from the RabbitMQ Server.
 * @throws IOException if an I/O error occurs
 * @throws TimeoutException if the timeout expires
 */
public void start() throws IOException, TimeoutException {
    System.out.println("Starting to receive Messages.");
    Connection connection = this.factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    System.out.println(" [*] Waiting for messages.");
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), StandardCharsets.UTF_8);
        System.out.println(" [x] Received '" + message + "'");
    };
    channel.basicConsume(QUEUE_NAME, true, deliverCallback, consumerTag -> {
    });
}

Example 35 with DeliverCallback

use of com.rabbitmq.client.DeliverCallback in project jeesuite-libs by vakinge.

the class RabbitmqConsumerAdapter method start.

@Override
public void start() throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("");
    factory.setPort(101);
    factory.setUsername("");
    factory.setPassword("");
    Connection connect = factory.newConnection();
    Channel channel = connect.createChannel();
    // 声明exchange
    DeclareOk declareOk = channel.exchangeDeclare("my.fanout3", "fanout", true);
    channel.exchangeDeclare("test", "fanout");
    String queueName = channel.queueDeclare().getQueue();
    channel.queueBind(queueName, "test", "");
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
    DeliverCallback deliverCallback = (consumerTag, delivery) -> {
        String message = new String(delivery.getBody(), "UTF-8");
        System.out.println(" [x] Received '" + message + "'");
    };
    channel.basicConsume(queueName, true, deliverCallback, consumerTag -> {
    });
}