[rabbitmq-discuss] Compile error for Rabbit RPC server - RabbitMQ version 3.2.4

Fri Mar 7 15:53:42 GMT 2014

I'm trying to compile the RPC server example for Java found on https://www.rabbitmq.com/tutorials/tutorial-six-java.html   (using the Netbeans IDE) and getting this error:

C:\Users\j.b.davis\Documents\NetBeansProjects\BunnyRPCserver\src\bunnyrpcserver\BunnyRPCserver.java:82: error: cannot find symbol
                BasicProperties replyProps = new BasicProperties.Builder()
  symbol:   class Builder
  location: interface BasicProperties

my source = :

/*
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* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/

package bunnyrpcserver;

/**
*
* @author j.b.davis
*/

import com.rabbitmq.client.BasicProperties;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.ConsumerCancelledException;
import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.ShutdownSignalException;

import java.io.IOException;

import java.util.logging.Level;
import java.util.logging.Logger;

public class BunnyRPCserver
{

    /**
     * @param args the command line arguments
     */

    private static final String RPC_QUEUE_NAME = "rpc_queue";

    public static void main(String[] args)
    {

        try
        {
            ConnectionFactory factory = new ConnectionFactory();
            factory.setHost("localhost");

            Connection connection = factory.newConnection();
            Channel channel = connection.createChannel();

            channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);

            channel.basicQos(1);

            QueueingConsumer consumer = new QueueingConsumer(channel);
            channel.basicConsume(RPC_QUEUE_NAME, false, consumer);

            System.out.println(" [x] Awaiting RPC requests");

            while (true)
            {
                QueueingConsumer.Delivery delivery = null;

                try
                {
                    delivery = consumer.nextDelivery();
                }
                catch (InterruptedException ex)
                {
                    Logger.getLogger(BunnyRPCserver.class.getName()).log(
                        Level.SEVERE, null, ex);
                }
                catch (ShutdownSignalException ex)
                {
                    Logger.getLogger(BunnyRPCserver.class.getName()).log(
                        Level.SEVERE, null, ex);
                }
                catch (ConsumerCancelledException ex)
                {
                    Logger.getLogger(BunnyRPCserver.class.getName()).log(
                        Level.SEVERE, null, ex);
                }

                BasicProperties props = delivery.getProperties();
                BasicProperties replyProps = new BasicProperties.Builder()
                    .correlationId(props.getCorrelationId()).build();

                String message = new String(delivery.getBody());
                int n = Integer.parseInt(message);

                System.out.println(" [.] fib(" + message + ")");

                String response = null;

                try
                {
                    response = "" + fib(n);
                }
                catch (Exception ex)
                {
                    Logger.getLogger(BunnyRPCserver.class.getName()).log(
                        Level.SEVERE, null, ex);
                }

                channel.basicPublish("", props.getReplyTo(), replyProps,
                    response.getBytes());

                channel.basicAck(delivery.getEnvelope().getDeliveryTag(),
                    false);
            }

        }
        catch (IOException ex)
        {
            Logger.getLogger(BunnyRPCserver.class.getName()).log(Level.SEVERE,
               null, ex);
        }
    }

    private static int fib(int n) throws Exception
    {

        if (n == 0)
            return (0);

        if (n == 1)
            return (1);

        return (fib(n - 1) + fib(n - 2));
    }

}

I must be doing something wrong, but what??

John Davis

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