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package gojobs
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import (
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"context"
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"errors"
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"fmt"
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"go.dtapp.net/goip"
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"go.dtapp.net/gojobs/jobs_gorm_model"
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"go.dtapp.net/gostring"
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"math/rand"
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"time"
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)
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// GetIssueAddress 获取下发地址
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// workers 在线列表
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// v 任务信息
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// ---
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// address 下发地址
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// err 错误信息
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func (c *Client) GetIssueAddress(ctx context.Context, workers []string, v *jobs_gorm_model.Task) (string, error) {
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var (
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currentIp = "" // 当前Ip
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appointIpStatus = false // 指定Ip状态
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)
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if v.SpecifyIp != "" {
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v.SpecifyIp = goip.IsIp(v.SpecifyIp)
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}
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// 赋值ip
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if v.SpecifyIp != "" && v.SpecifyIp != SpecifyIpNull {
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currentIp = v.SpecifyIp
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appointIpStatus = true
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}
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// 只有一个客户端在线
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if len(workers) == 1 {
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if appointIpStatus {
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// 判断是否指定某ip执行
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if gostring.Contains(workers[0], currentIp) {
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c.zapLog.WithTraceId(ctx).Sugar().Info("只有一个客户端在线，指定某ip执行：", workers[0], currentIp)
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return workers[0], nil
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}
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return "", errors.New(fmt.Sprintf("需要执行的[%s]客户端不在线", currentIp))
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}
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return workers[0], nil
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}
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// 优先处理指定某ip执行
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if appointIpStatus {
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for wk, wv := range workers {
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if gostring.Contains(wv, currentIp) {
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c.zapLog.WithTraceId(ctx).Sugar().Info("优先处理指定某ip执行：", workers[wk], currentIp)
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return workers[wk], nil
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}
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}
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return "", errors.New(fmt.Sprintf("需要执行的[%s]客户端不在线", currentIp))
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} else {
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// 随机返回一个
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address := workers[c.random(0, len(workers))]
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if address == "" {
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return address, errors.New("获取执行的客户端异常")
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}
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c.zapLog.WithTraceId(ctx).Sugar().Info("随机返回一个：", address, currentIp)
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return address, nil
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}
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}
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// GetSubscribeClientList 获取在线的客户端
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func (c *Client) GetSubscribeClientList(ctx context.Context) (client []string, err error) {
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// 查询活跃的channel
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client, err = c.cache.redisClient.PubSubChannels(ctx, c.cache.cornKeyPrefix+"_*").Result()
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if err != nil {
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c.zapLog.WithTraceId(ctx).Sugar().Errorf("获取在线的客户端失败：%s，%v", c.cache.cornKeyPrefix+"_*", err)
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}
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return client, err
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}
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// 随机返回一个
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// min最小
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// max最大
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func (c *Client) random(min, max int) int {
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if max-min <= 0 {
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return 0
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}
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rand.Seed(time.Now().Unix())
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return rand.Intn(max-min) + min
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}
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