131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
package logic
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import (
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"context"
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"fusenapi/constants"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"sync"
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"time"
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"fusenapi/server/websocket/internal/svc"
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"fusenapi/server/websocket/internal/types"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type CommonNotifyLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewCommonNotifyLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CommonNotifyLogic {
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return &CommonNotifyLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// 定义公共回调未找到websocket连接时暂存数据缓冲队列
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var commonConnectionNotFoundDataCacheChan = make(chan commonConnectionNotFoundDataCacheChanItem, 2000)
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type commonConnectionNotFoundDataCacheChanItem struct {
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retryTimes int //重回队列次数
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data types.CommonNotifyReq //数据
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}
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// 放入缓冲队列
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func (l *CommonNotifyLogic) pushCommonCache(data commonConnectionNotFoundDataCacheChanItem) {
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select {
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case commonConnectionNotFoundDataCacheChan <- data:
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return
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case <-time.After(time.Second): //超1秒就丢弃
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return
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}
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}
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// 取出元素
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func (l *CommonNotifyLogic) popCommonCache() (data commonConnectionNotFoundDataCacheChanItem) {
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return <-commonConnectionNotFoundDataCacheChan
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}
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// 保证处理消息就一个循环在执行
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var consumeCommonCacheData sync.Once
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// 消费公共通知未处理的消息
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func (l *CommonNotifyLogic) consumeCommonCacheData() {
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//单例
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consumeCommonCacheData.Do(func() {
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tick := time.Tick(time.Millisecond * 200)
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for {
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select {
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case <-tick: //200毫秒触发一次
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info := l.popCommonCache()
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//查询websocket连接
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value, ok := mapConnPool.Load(info.data.Wid)
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//没有连接
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if !ok {
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info.retryTimes--
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//大于0，则放回队列
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if info.retryTimes > 0 {
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l.pushCommonCache(info)
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continue
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}
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//否则直接丢弃消息
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continue
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}
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//断言连接
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ws, ok := value.(wsConnectItem)
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if !ok {
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logx.Error("渲染回调断言websocket连接失败")
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continue
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}
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//发送
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ws.sendToOutChan(ws.respondDataFormat(constants.WEBSOCKET_COMMON_NOTIFY, info.data.Data))
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}
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}
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})
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}
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// 处理进入前逻辑w,r
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// func (l *CommonNotifyLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
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// }
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func (l *CommonNotifyLogic) CommonNotify(req *types.CommonNotifyReq, userinfo *auth.UserInfo) (resp *basic.Response) {
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//websocket连接id不能为空
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if req.Wid == "" {
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return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "websocket connect id is empty")
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}
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//触发消费公共未处理的消息（该方法是单例）
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l.consumeCommonCacheData()
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//查询websocket连接
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value, ok := mapConnPool.Load(req.Wid)
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if !ok {
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//没找到连接就放到公共缓冲队列
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l.pushCommonCache(commonConnectionNotFoundDataCacheChanItem{
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retryTimes: 4, //重试4次
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data: types.CommonNotifyReq{
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Wid: req.Wid,
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Data: req.Data,
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},
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})
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return resp.SetStatusWithMessage(basic.CodeOK, "success")
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}
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//断言连接
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ws, ok := value.(wsConnectItem)
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if !ok {
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logx.Error("渲染回调断言websocket连接失败")
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return resp.SetStatusWithMessage(basic.CodeServiceErr, "断言连接错误")
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}
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ws.sendToOutChan(ws.respondDataFormat(constants.WEBSOCKET_COMMON_NOTIFY, req.Data))
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return resp.SetStatusWithMessage(basic.CodeOK, "success")
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}
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// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
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// func (l *CommonNotifyLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
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// // httpx.OkJsonCtx(r.Context(), w, resp)
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// }
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