cn.kduck.core.event.RemoteEventBus Maven / Gradle / Ivy

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The core of the K-Duck development framework encompasses all the featured components of the framework.
There is a newer version: 2.0.0
package cn.kduck.core.event;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.amqp.core.AmqpAdmin;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Binding.DestinationType;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.ArrayList;
import java.util.List;

public class RemoteEventBus implements EventPublisher, InitializingBean {

    public final static String KDUCK_EVENT_EXCHANGE_NAME = "kduckExchange";

    private ObjectMapper objectMapper = new ObjectMapper();

//    @Autowired(required = false)
//    private SimpleMessageListenerContainer messageListenerContainer;

    @Autowired
    private AmqpAdmin amqpAdmin;

    @Autowired
    private AmqpTemplate amqpTemplate;

    private List routeKeyList = new ArrayList<>();

//    @Autowired(required = false)
//    private List listenerList;
//
//    public RemoteEventBus(List listenerList){
//        this.listenerList = listenerList;
//    }

    @Override
    public void publish(Event event) {
//        if(listenerList == null){
//            return;
//        }

        String key = event.getCode() + "." + event.getType();
//        if(!routeKeyList.contains(key)){
//
//            String queueName = "kduckQueue." + key;
//            Queue queue = new Queue(queueName);
//            amqpAdmin.declareQueue(queue);
//            amqpAdmin.declareBinding(new Binding(queueName, DestinationType.QUEUE,KDUCK_EVENT_EXCHANGE_NAME,key + ".#",null));
//
////            if(messageListenerContainer != null){
////                messageListenerContainer.addQueues(queue);
////            }
//
//            routeKeyList.add(key);
//        }

        String message;
        try {
            message = objectMapper.writeValueAsString(event);
        } catch (JsonProcessingException e) {
            throw new RuntimeException("发送事件，Event对象转换为Json时出现错误",e);
        }
        amqpTemplate.convertAndSend(KDUCK_EVENT_EXCHANGE_NAME,key,message);

    }

    @Override
    public void afterPropertiesSet() throws Exception {
//        if(amqpTemplate instanceof RabbitTemplate){
//            ((RabbitTemplate)amqpTemplate).setMessageConverter(new Jackson2JsonMessageConverter());
//        }
        amqpAdmin.declareExchange(new TopicExchange(KDUCK_EVENT_EXCHANGE_NAME));
//        if(listenerList != null){
//            if(amqpTemplate instanceof RabbitTemplate){
//                ((RabbitTemplate)amqpTemplate).setMessageConverter(new Jackson2JsonMessageConverter());
//            }
//            amqpAdmin.declareExchange(new TopicExchange(KDUCK_EVENT_EXCHANGE_NAME));
//            List queueNameList = new ArrayList<>(listenerList.size());
//            for (EventListener eventListener : listenerList) {
//                String key = eventListener.eventCode()+"."+eventListener.eventType();
//                String queueName = "kduckEventQueue." + eventListener.eventCode();
//                amqpAdmin.declareQueue(new Queue(queueName));
//                amqpAdmin.declareBinding(new Binding(queueName, DestinationType.QUEUE,KDUCK_EVENT_EXCHANGE_NAME,key,null));
//                queueNameList.add(queueName);
//            }
//            messageListenerContainer.setQueueNames(queueNameList.toArray(new String[0]));
//        }

    }
}