135 lines
3.2 KiB
Go
135 lines
3.2 KiB
Go
package initalize
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import (
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"context"
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"crypto/tls"
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"errors"
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"fusenapi/constants"
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"fusenapi/utils/mq_consumer_factory"
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"github.com/streadway/amqp"
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"github.com/zeromicro/go-zero/core/logx"
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"log"
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"strings"
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"sync"
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)
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type RabbitMqHandle struct {
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}
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// 连接属性
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type queueItem struct {
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ch *amqp.Channel
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queue amqp.Queue
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}
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// 存储连接
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var mapMq = make(map[constants.RABBIT_MQ]queueItem)
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func InitRabbitMq(url string, config *tls.Config) *RabbitMqHandle {
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url = strings.Trim(url, " ")
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if url == "" {
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return nil
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}
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conn, err := amqp.DialTLS(url, config)
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if err != nil {
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log.Fatalf("Failed to connect to RabbitMQ: %v", err)
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}
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// 创建一个通道
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ch, err := conn.Channel()
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if err != nil {
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log.Fatalf("Failed to open a channel: %v", err)
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}
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//声明队列
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for _, queueName := range constants.MqQueueArr {
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q, err := ch.QueueDeclare(
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string(queueName), // 队列名
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true, // 是否持久化
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false, // 是否自动删除
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false, // 是否排他
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false, // 是否等待服务器响应
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nil, // 其他参数
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)
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if err != nil {
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log.Fatalf("Failed to declare a queue: %v", err)
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}
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mapMq[queueName] = queueItem{
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ch: ch,
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queue: q,
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}
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}
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return &RabbitMqHandle{}
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}
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// 发送消息
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func (h *RabbitMqHandle) SendMsg(queueName constants.RABBIT_MQ, message []byte) error {
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object, ok := mapMq[queueName]
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if !ok {
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return errors.New("unknown queue")
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}
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// 发送消息到队列
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return object.ch.Publish(
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"", // exchange，如果为空，则使用默认交换机
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object.queue.Name, // routing key，将消息发送到指定队列
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false, // 是否等待服务器响应
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false, // 是否立即发送
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amqp.Publishing{
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ContentType: "text/plain", //普通文本
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Body: message,
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}, // 消息内容
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)
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}
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// 消费消息
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func (h *RabbitMqHandle) Consume(ctx context.Context, queueName constants.RABBIT_MQ, handle mq_consumer_factory.MqHandle) {
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object, ok := mapMq[queueName]
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if !ok {
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panic("unknown queue")
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}
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go func() {
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select {
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case <-ctx.Done():
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panic("err ctx deadline")
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}
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}()
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msgs, err := object.ch.Consume(
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object.queue.Name, // 队列名
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object.queue.Name, // 消费者名，如果为空，则是随机生成一个
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false, // 自动应答
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false, // 是否排他
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false, // 是否阻塞
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false, // 是否等待服务器响应
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nil, // 其他参数
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)
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if err != nil {
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log.Fatalf("Failed to register a consumer: %v", err)
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}
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//允许20的并发
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limit := make(chan struct{}, 20)
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wait := sync.WaitGroup{}
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defer close(limit)
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// 消费消息
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for msg := range msgs {
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limit <- struct{}{}
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wait.Add(1)
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go func(m amqp.Delivery) {
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if err := recover(); err != nil {
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logx.Error(err)
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}
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defer func() {
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<-limit
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wait.Done()
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}()
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if err = handle.Run(ctx, m.Body); err != nil {
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logx.Error("failed to deal with MQ message:", string(m.Body))
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return
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}
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if err = object.ch.Ack(m.DeliveryTag, false); err != nil {
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logx.Error("failed to ack mq to delete")
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} else {
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log.Printf("Consume Mq message success: %s", m.Body)
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}
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}(msg)
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}
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wait.Wait()
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}
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