LocalDateTimeUtils.kt

object LocalDateTimeUtils {

    //Calendar to LocalDate
    @JvmStatic
    fun toLocalDate(calendar: Calendar): LocalDate {
        return LocalDate.of(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) + 1, calendar.get(Calendar.DAY_OF_MONTH))
    }

    //Date to LocalDate
    @JvmStatic
    fun toLocalDate(date: Date): LocalDate{
        val instant = DateTimeUtils.toInstant(date)
        return instant.atZone(ZoneId.systemDefault())
                .toLocalDate()
    }

    //Date to LocalTime
    @JvmStatic
    fun toLocalTime(date: Date): LocalTime {
        val instant = DateTimeUtils.toInstant(date)
        return instant.atZone(ZoneId.systemDefault())
                .toLocalTime()
    }

    //Date to LocalDateTime
    @JvmStatic
    fun toLocalDateTime(date: Date): LocalDateTime {
        val instant = DateTimeUtils.toInstant(date)
        return instant.atZone(ZoneId.systemDefault())
                .toLocalDateTime()
    }

    //LocalDateTime to Date
    @JvmStatic
    fun toDate(dateTime: LocalDateTime): Date{
        val instant = dateTime.atZone(ZoneId.systemDefault()).toInstant()
        return DateTimeUtils.toDate(instant)
    }

    //LocalDate to Date
    @JvmStatic
    fun toDate(dateTime: LocalDate): Date{
        val instant = dateTime.atTime(0, 0).atZone(ZoneId.systemDefault()).toInstant()
        return DateTimeUtils.toDate(instant)
    }
}