/// <summary>
/// Test the extended format with a given date.
/// </summary>
/// <param name="format">The extended format arguments.</param>
/// <param name="getTime">The time when the item has been refreshed.</param>
/// <param name="nowTime">Always DateTime.Now, or the date to test with.</param>
/// <returns>true if the item was expired, otherwise false</returns>
public static bool IsExtendedExpired(string format, DateTime getTime, DateTime nowTime)
{
// Validate arguments
if (format == null)
{
throw new ArgumentNullException("format");
}
// Remove the seconds to provide better precission on calculations
getTime = getTime.AddSeconds(getTime.Second * -1);
nowTime = nowTime.AddSeconds(nowTime.Second * -1);
ExtendedFormat parsedFormat = (ExtendedFormat)_parsedFormatCache[format];
if (parsedFormat == null)
{
parsedFormat = new ExtendedFormat(format);
lock (_parsedFormatCache.SyncRoot)
_parsedFormatCache[format] = parsedFormat;
}
if (nowTime.Subtract(getTime).TotalMinutes < 1)
{
return(false);
}
// Validate the format arguments
foreach (int minute in parsedFormat.Minutes)
{
foreach (int hour in parsedFormat.Hours)
{
foreach (int day in parsedFormat.Days)
{
foreach (int month in parsedFormat.Months)
{
// Set the expiration date parts
int expirMinute = minute == -1 ? getTime.Minute : minute;
int expirHour = hour == -1 ? getTime.Hour : hour;
int expirDay = day == -1 ? getTime.Day : day;
int expirMonth = month == -1 ? getTime.Month : month;
int expirYear = getTime.Year;
// Adjust when wildcards are set
if (minute == -1 && hour != -1)
{
expirMinute = 0;
}
if (hour == -1 && day != -1)
{
expirHour = 0;
}
if (minute == -1 && day != -1)
{
expirMinute = 0;
}
if (day == -1 && month != -1)
{
expirDay = 1;
}
if (hour == -1 && month != -1)
{
expirHour = 0;
}
if (minute == -1 && month != -1)
{
expirMinute = 0;
}
if (DateTime.DaysInMonth(expirYear, expirMonth) < expirDay)
{
if (expirMonth == 12)
{
expirMonth = 1;
expirYear++;
}
else
{
expirMonth++;
}
expirDay = 1;
}
// Create the date with the adjusted parts
DateTime expTime =
new DateTime(
expirYear, expirMonth, expirDay,
expirHour, expirMinute, 0);
// Adjust when expTime is before getTime
if (expTime < getTime)
{
if (month != -1 && getTime.Month >= month)
{
expTime = expTime.AddYears(1);
}
else if (day != -1 && getTime.Day >= day)
{
expTime = expTime.AddMonths(1);
}
else if (hour != -1 && getTime.Hour >= hour)
{
expTime = expTime.AddDays(1);
}
else if (minute != -1 && getTime.Minute >= minute)
{
expTime = expTime.AddHours(1);
}
}
// Is Expired?
if (parsedFormat.ExpireEveryDayOfWeek)
{
if (nowTime >= expTime)
{
return(true);
}
}
else
{
// Validate WeekDay
foreach (int weekDay in parsedFormat.DaysOfWeek)
{
DateTime tmpTime = getTime;
tmpTime = tmpTime.AddHours(-1 * tmpTime.Hour);
tmpTime = tmpTime.AddMinutes(-1 * tmpTime.Minute);
while ((int)tmpTime.DayOfWeek != weekDay)
{
tmpTime = tmpTime.AddDays(1);
}
if (nowTime >= tmpTime && nowTime >= expTime)
{
return(true);
}
}
}
}
}
}
}
return(false);
}
/// <summary>
/// Test the extended format with a given date.
/// </summary>
/// <param name="format">The extended format arguments.</param>
/// <param name="getTime">The time when the item has been refreshed.</param>
/// <param name="nowTime">Always DateTime.Now, or the date to test with.</param>
/// <returns>true if the item was expired, otherwise false</returns>
public static bool IsExtendedExpired( string format, DateTime getTime, DateTime nowTime )
{
// Validate arguments
if(format == null)
throw new ArgumentNullException("format");
// Remove the seconds to provide better precission on calculations
getTime = getTime.AddSeconds( getTime.Second * -1 );
nowTime = nowTime.AddSeconds( nowTime.Second * -1 );
ExtendedFormat parsedFormat = (ExtendedFormat)_parsedFormatCache[ format ];
if( parsedFormat == null )
{
parsedFormat = new ExtendedFormat( format );
lock(_parsedFormatCache.SyncRoot)
_parsedFormatCache[ format ] = parsedFormat;
}
if( nowTime.Subtract( getTime ).TotalMinutes < 1 )
return false;
// Validate the format arguments
foreach( int minute in parsedFormat.Minutes )
{
foreach( int hour in parsedFormat.Hours )
{
foreach( int day in parsedFormat.Days )
{
foreach( int month in parsedFormat.Months )
{
// Set the expiration date parts
int expirMinute = minute == -1 ? getTime.Minute : minute;
int expirHour = hour == -1 ? getTime.Hour : hour;
int expirDay = day == -1 ? getTime.Day : day;
int expirMonth = month == -1 ? getTime.Month : month;
int expirYear = getTime.Year;
// Adjust when wildcards are set
if( minute == -1 && hour != -1 )
expirMinute = 0;
if( hour == -1 && day != -1 )
expirHour = 0;
if( minute == -1 && day != -1 )
expirMinute = 0;
if( day == -1 && month != -1 )
expirDay = 1;
if( hour == -1 && month != -1 )
expirHour = 0;
if( minute == -1 && month != -1 )
expirMinute = 0;
if( DateTime.DaysInMonth( expirYear, expirMonth ) < expirDay )
{
if( expirMonth == 12 )
{
expirMonth = 1;
expirYear++;
}
else
expirMonth++;
expirDay = 1;
}
// Create the date with the adjusted parts
DateTime expTime =
new DateTime(
expirYear, expirMonth, expirDay,
expirHour, expirMinute, 0 );
// Adjust when expTime is before getTime
if( expTime < getTime )
{
if( month != -1 && getTime.Month >= month )
expTime = expTime.AddYears(1);
else if( day != -1 && getTime.Day >= day )
expTime = expTime.AddMonths(1);
else if( hour != -1 && getTime.Hour >= hour )
expTime = expTime.AddDays(1);
else if( minute != -1 && getTime.Minute >= minute )
expTime = expTime.AddHours(1);
}
// Is Expired?
if( parsedFormat.ExpireEveryDayOfWeek )
{
if(nowTime >= expTime)
return true;
}
else
{
// Validate WeekDay
foreach( int weekDay in parsedFormat.DaysOfWeek )
{
DateTime tmpTime = getTime;
tmpTime = tmpTime.AddHours( -1 * tmpTime.Hour );
tmpTime = tmpTime.AddMinutes( -1 * tmpTime.Minute );
while( (int)tmpTime.DayOfWeek != weekDay )
{
tmpTime = tmpTime.AddDays(1);
}
if(nowTime >= tmpTime && nowTime >= expTime)
return true;
}
}
}
}
}
}
return false;
}
