dcg/game/msg_transfer/gift/msg_to_push.go

package gift

import (
	"dcg/config"
	pbMq "dcg/game/pb/mq"
	pushPb "dcg/game/pb/push"
	"dcg/game/svc"
	kfk "dcg/pkg/kafka"
	"git.noahlan.cn/northlan/ntools-go/kafka"
	"git.noahlan.cn/northlan/ntools-go/logger"
	"github.com/Shopify/sarama"
	"github.com/golang/protobuf/proto"
)

type MsgToPushHandler struct {
	ctx           *svc.ServiceContext
	msgHandle     map[string]msgHandlerFunc
	ConsumerGroup *kafka.ConsumerGroup
}

func (h *MsgToPushHandler) Init(ctx *svc.ServiceContext) {
	h.ctx = ctx

	cfg := config.Config.Kafka.Gift
	h.msgHandle = make(map[string]msgHandlerFunc)
	h.msgHandle["gift"] = h.handleGift

	var err error
	h.ConsumerGroup, err = kafka.NewConsumerGroup(&kafka.ConsumerGroupConfig{
		KafkaVersion:   sarama.V3_1_0_0,
		OffsetsInitial: sarama.OffsetNewest,
		IsReturnErr:    false,
		UnMarshaler:    kfk.ProtobufMarshaler,
	}, cfg.Addr, []string{cfg.Topic}, config.Config.ConsumerGroupId.GiftToPush)

	if err != nil {
		logger.SLog.Error(err)
	}
}

func (h *MsgToPushHandler) handleGift(data []byte, msgKey string) {
	// msg proto
	var msgFromMq pbMq.MqGift
	err := proto.Unmarshal(data, &msgFromMq)
	if err != nil {
		logger.SLog.Error("unmarshal msg err", err)
		return
	}
	h.ctx.RoomManager.Broadcast("game.gift", &pushPb.Gift{
		User: &pushPb.User{
			UId:   msgFromMq.Uid,
			Uname: msgFromMq.Uname,
		},
		GiftId:    msgFromMq.GiftId,
		TotalCoin: msgFromMq.TotalCoin,
	})
	logger.SLog.Debugf("队列礼物消息: %s 投喂 %s 价值 %d", msgFromMq.Uname, msgFromMq.GiftName, msgFromMq.TotalCoin)
}

func (MsgToPushHandler) Setup(_ sarama.ConsumerGroupSession) error   { return nil }
func (MsgToPushHandler) Cleanup(_ sarama.ConsumerGroupSession) error { return nil }
func (h *MsgToPushHandler) ConsumeClaim(sess sarama.ConsumerGroupSession, claim sarama.ConsumerGroupClaim) error {
	for msg := range claim.Messages() {
		//logger.SLog.Infow("kafka get info to mysql", "msgTopic", msg.Topic, "msgPartition", msg.Partition, "msg", string(msg.Value))
		if hFunc, ok := h.msgHandle[msg.Topic]; ok {
			hFunc(msg.Value, string(msg.Key))
		}
		sess.MarkMessage(msg, "")
	}
	return nil
}