public void Should_return_next_expected_date(BackupFrequency backupFrequency, string date, string expectedNextDate)
{
var dateValue = DateTime.ParseExact(date, "o", null, DateTimeStyles.RoundtripKind);
var expectedNextDateValue = DateTime.ParseExact(expectedNextDate, "o", null, DateTimeStyles.RoundtripKind);
Assert.Equal(expectedNextDateValue, DateExtensions.NextDateTime(backupFrequency, dateValue));
}
public async Task AddAsync(string databasePath, BackupFrequency backupFrequency, bool uploadToDropbox, BackupFrequency?uploadToDropboxFrequency)
{
await _context.DatabaseBackups.AddAsync(new DatabaseBackup
{
DatabasePath = databasePath,
BackupFrequency = backupFrequency,
UploadToDropbox = uploadToDropbox,
UploadToDropboxFrequency = uploadToDropbox ? uploadToDropboxFrequency : null
});
await _context.SaveChangesAsync();
}
public static DateTime NextDateTime(this BackupFrequency backupFrequency, DateTime?fromDate)
{
if (fromDate == null)
{
return(DateTime.MinValue);
}
return(backupFrequency switch {
BackupFrequency.Daily => fromDate.Value.AddDays(1),
BackupFrequency.Weekly => fromDate.Value.AddDays(7),
BackupFrequency.Monthly => fromDate.Value.AddMonths(1),
_ => fromDate.Value
});
private bool CheckBackupNecessary(DateTime lastBackup, BackupFrequency backupFrequency)
{
if (log.IsDebugEnabled)
{
log.Debug(string.Format("Backup necessary - Current Date: {0} Backup Frequency: {1}", DateTime.Now,
backupFrequency));
}
bool backupNecessary = false;
GregorianCalendar cal;
switch (backupFrequency)
{
case BackupFrequency.OnConnect:
backupNecessary = true;
break;
case BackupFrequency.Daily:
backupNecessary = lastBackup < DateTime.Today;
break;
case BackupFrequency.Weekly:
cal = new GregorianCalendar(GregorianCalendarTypes.Localized);
return(cal.GetWeekOfYear(lastBackup, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday) < cal.GetWeekOfYear(DateTime.Now, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday));
case BackupFrequency.Monthly:
cal = new GregorianCalendar(GregorianCalendarTypes.Localized);
backupNecessary = cal.GetMonth(lastBackup) < cal.GetMonth(DateTime.Now);
break;
case BackupFrequency.Never:
break;
default:
throw new ArgumentOutOfRangeException(nameof(backupFrequency), backupFrequency, null);
}
return(backupNecessary);
}
/// <summary>
/// Convert a <see cref="BackupFrequency"/> object to it's period value
/// in milliseconds.
/// </summary>
/// <param name="frequency">backup frequency to convert</param>
/// <returns>the frequency's period in milliseconds.</returns>
public static double ToMilliseconds(BackupFrequency frequency)
{
return(frequency.Amount * Multiplier(frequency.Period));
}
