package com.example.mq.demo;

import com.example.mq.common.Consumer;
import com.example.mq.common.MessageQueueException;
import com.example.mq.mqclient.Channel;
import com.example.mq.mqclient.Connection;
import com.example.mq.mqclient.ConnectionFactory;
import com.example.mq.mqserver.core.BasicProperties;
import com.example.mq.mqserver.core.ExchangeType;
import com.sun.jndi.cosnaming.CNCtxFactory;

import java.io.IOException;

/*
 * 这个类表示一个消费者.
 * 通常这个类也应该是在一个独立的服务器中被执行
 */
public class DemoConsumer {
    public static void main(String[] args) throws IOException, MessageQueueException, InterruptedException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("127.0.0.1");
        factory.setPort(9090);

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

        channel.exchangeDeclare("test", ExchangeType.DIRECT, false, false, null);
        channel.queueDeclare("test", false, false, false, null);

        boolean ok = channel.basicConsume("test", true, new Consumer() {
            @Override
            public void handleDelivery(String consumerTag, BasicProperties basicProperties, byte[] body) throws MessageQueueException, IOException {
                System.out.println("[消费数据] 开始!");
                System.out.println("consumerTag = " + consumerTag);
                System.out.println("messageId = " + basicProperties.getMessageId());
                String con = new String(body, 0, body.length);
                System.out.println("con = " + con);
                System.out.println("[消费数据] 结束!");
            }
        });
        System.out.println(" ok = " + ok);

        // 由于消费者也不知道生产者要生产多少, 就在这里通过这个循环模拟一直等待消费.
        while (true) {
            Thread.sleep(500);
        }
    }
}