krontab/src/commonMain/kotlin/com/insanusmokrassar/krontab/StringParser.kt

71 lines
2.4 KiB
Kotlin

package com.insanusmokrassar.krontab
import com.insanusmokrassar.krontab.internal.*
/**
* Parse [incoming] string and adapt according to next format: "* * * * *" where order of things:
*
* * seconds
* * minutes
* * hours
* * dayOfMonth
* * month
*
* And each one have next format:
*
* `{number},{number},...`
*
* and {number} here is one of
*
* * {int}-{int}
* * {int}/{int}
* * */{int}
* * {int}
*
* Additional info about ranges can be found in follow accordance:
*
* * Seconds ranges can be found in [secondsRange]
* * Minutes ranges can be found in [minutesRange]
* * Hours ranges can be found in [hoursRange]
* * Days of month ranges can be found in [dayOfMonthRange]
* * Months ranges can be found in [monthRange]
*
* Examples:
*
* * "0/5 * * * *" for every five seconds triggering
* * "0/15 30 * * *" for every 15th seconds in a half of each hour
* * "1 2 3 4 5" for triggering in near first second of second minute of third hour of fourth day of may
*/
fun createSimpleScheduler(incoming: String): KronScheduler {
val (secondsSource, minutesSource, hoursSource, dayOfMonthSource, monthSource) = incoming.split(" ")
val secondsParsed = parseSeconds(secondsSource)
val minutesParsed = parseMinutes(minutesSource)
val hoursParsed = parseHours(hoursSource)
val dayOfMonthParsed = parseDaysOfMonth(dayOfMonthSource)
val monthParsed = parseMonths(monthSource)
val resultCronDateTimes = mutableListOf(CronDateTime())
secondsParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
previousCronDateTime.copy(seconds = currentTime)
}
minutesParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
previousCronDateTime.copy(minutes = currentTime)
}
hoursParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
previousCronDateTime.copy(hours = currentTime)
}
dayOfMonthParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
previousCronDateTime.copy(dayOfMonth = currentTime)
}
monthParsed ?.fillWith(resultCronDateTimes) { previousCronDateTime: CronDateTime, currentTime: Byte ->
previousCronDateTime.copy(month = currentTime)
}
return CronDateTimeScheduler(resultCronDateTimes.toList())
}