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event.go
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event.go
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package schedule
import (
"strings"
"github.com/chenyuIT/framework/contracts/schedule"
)
type Event struct {
Command string
Callback func()
cron string
skipIfStillRunning bool
delayIfStillRunning bool
}
func (receiver *Event) GetCron() string {
if receiver.cron == "" {
receiver.cron = "* * * * *"
}
return receiver.cron
}
func (receiver *Event) GetCommand() string {
return receiver.Command
}
func (receiver *Event) GetCallback() func() {
return receiver.Callback
}
func (receiver *Event) GetSkipIfStillRunning() bool {
return receiver.skipIfStillRunning
}
func (receiver *Event) GetDelayIfStillRunning() bool {
return receiver.delayIfStillRunning
}
// Cron The Cron expression representing the event's frequency.
func (receiver *Event) Cron(expression string) schedule.Event {
receiver.cron = expression
return receiver
}
// EveryMinute Schedule the event to run every minute.
func (receiver *Event) EveryMinute() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*"))
}
// EveryTwoMinutes Schedule the event to run every two minutes.
func (receiver *Event) EveryTwoMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/2"))
}
// EveryThreeMinutes Schedule the event to run every three minutes.
func (receiver *Event) EveryThreeMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/3"))
}
// EveryFourMinutes Schedule the event to run every four minutes.
func (receiver *Event) EveryFourMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/4"))
}
// EveryFiveMinutes Schedule the event to run every five minutes.
func (receiver *Event) EveryFiveMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/5"))
}
// EveryTenMinutes Schedule the event to run every ten minutes.
func (receiver *Event) EveryTenMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/10"))
}
// EveryFifteenMinutes Schedule the event to run every fifteen minutes.
func (receiver *Event) EveryFifteenMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "*/15"))
}
// EveryThirtyMinutes Schedule the event to run every thirty minutes.
func (receiver *Event) EveryThirtyMinutes() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "0,30"))
}
// Hourly Schedule the event to run hourly.
func (receiver *Event) Hourly() schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, "0"))
}
// HourlyAt Schedule the event to run hourly at a given offset in the hour.
func (receiver *Event) HourlyAt(offset []string) schedule.Event {
return receiver.Cron(receiver.spliceIntoPosition(1, strings.Join(offset, ",")))
}
// EveryTwoHours Schedule the event to run every two hours.
func (receiver *Event) EveryTwoHours() schedule.Event {
event := receiver.Cron(receiver.spliceIntoPosition(1, "0"))
return event.Cron(receiver.spliceIntoPosition(2, "*/2"))
}
// EveryThreeHours Schedule the event to run every three hours.
func (receiver *Event) EveryThreeHours() schedule.Event {
event := receiver.Cron(receiver.spliceIntoPosition(1, "0"))
return event.Cron(receiver.spliceIntoPosition(2, "*/3"))
}
// EveryFourHours Schedule the event to run every four hours.
func (receiver *Event) EveryFourHours() schedule.Event {
event := receiver.Cron(receiver.spliceIntoPosition(1, "0"))
return event.Cron(receiver.spliceIntoPosition(2, "*/4"))
}
// EverySixHours Schedule the event to run every six hours.
func (receiver *Event) EverySixHours() schedule.Event {
event := receiver.Cron(receiver.spliceIntoPosition(1, "0"))
return event.Cron(receiver.spliceIntoPosition(2, "*/6"))
}
// Daily Schedule the event to run daily.
func (receiver *Event) Daily() schedule.Event {
event := receiver.Cron(receiver.spliceIntoPosition(1, "0"))
return event.Cron(receiver.spliceIntoPosition(2, "0"))
}
// At Schedule the command at a given time.
func (receiver *Event) At(time string) schedule.Event {
return receiver.DailyAt(time)
}
// DailyAt Schedule the event to run daily at a given time (10:00, 19:30, etc).
func (receiver *Event) DailyAt(time string) schedule.Event {
segments := strings.Split(time, ":")
event := receiver.Cron(receiver.spliceIntoPosition(2, segments[0]))
if len(segments) == 2 {
return event.Cron(receiver.spliceIntoPosition(1, segments[1]))
} else {
return event.Cron(receiver.spliceIntoPosition(1, "0"))
}
}
// SkipIfStillRunning Do not allow the event to overlap each other.
func (receiver *Event) SkipIfStillRunning() schedule.Event {
receiver.skipIfStillRunning = true
return receiver
}
// DelayIfStillRunning Do not allow the event to overlap each other.
func (receiver *Event) DelayIfStillRunning() schedule.Event {
receiver.delayIfStillRunning = true
return receiver
}
// spliceIntoPosition Splice the given value into the given position of the expression.
func (receiver *Event) spliceIntoPosition(position int, value string) string {
segments := strings.Split(receiver.GetCron(), " ")
segments[position-1] = value
return strings.Join(segments, " ")
}