public NotificationLogId First(int notificationsPerLog, long totalLogged)
{
var first = new NotificationLogId(1, notificationsPerLog);
if (totalLogged < 1)
{
first = null;
}
return(first);
}
public static string GetEncoded(NotificationLogId notificationLogId)
{
if (notificationLogId != null)
{
return(notificationLogId.Encoded);
}
else
{
return(null);
}
}
public NotificationLogId Previous(int notificationsPerLog, long totalLogged)
{
var previousLow = Math.Max(this.Low - notificationsPerLog, 1);
var previousHigh = this.Low - 1;
var previous = new NotificationLogId(previousLow, previousHigh);
if (previousHigh <= 0 || previousLow > totalLogged)
{
previous = null;
}
return(previous);
}
public NotificationLogId Next(int notificationsPerLog, long totalLogged)
{
var nextLow = this.High + 1;
var nextHigh = nextLow + notificationsPerLog - 1;
var next = new NotificationLogId(nextLow, nextHigh);
if (nextLow > totalLogged)
{
next = null;
}
return(next);
}
public static bool TryParse(string value, out NotificationLogId logId)
{
bool result = false;
logId = null;
var m = Regex.Match(value, Event.NotificationLog.LogId.Regex.Pattern, RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace);
if (m.Success)
{
logId = new NotificationLogId(
long.Parse(m.Groups[Event.NotificationLog.LogId.Regex.CaptureName.Low].Value),
long.Parse(m.Groups[Event.NotificationLog.LogId.Regex.CaptureName.High].Value)
);
result = true;
}
return(result);
}
public NotificationLogId(NotificationLogId original)
{
this.Low = original.Low;
this.High = original.High;
}