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util.go
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/
util.go
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package util
import (
"errors"
"github.com/lishimeng/go-log"
"github.com/robfig/cron/v3"
)
// ParseSpec 尝试转换定时任务表达式
func ParseSpec(spec string) (err error) {
defer func() {
if r := recover(); r != nil {
log.Info("定时任务表达式(%+v)出错:%+v", spec, r)
switch x := r.(type) {
case string:
err = errors.New(x)
case error:
err = x
default:
err = errors.New("发生未知panic")
}
}
}()
schedule, err := cron.NewParser(
cron.Second | cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor,
).Parse(spec)
if err != nil {
return err
}
if schedule == nil {
return errors.New("cron parse err")
}
return
}
// IsValidSpec 校验spec表达式是否合法
func IsValidSpec(spec string) (valid bool, err error) {
err = ParseSpec(spec)
if err == nil {
log.Info("定时任务表达式(%+v)合法", spec)
valid = true
} else {
log.Info("定时任务表达式(%+v)非法", spec)
valid = false
}
return
}