/// <summary>
/// Creates a new instance of <see cref="DateRangeBound"/> using a UTC timestamp
/// </summary>
/// <param name="precision"></param>
/// <param name="utcTimestamp"></param>
private DateRangeBound(DateRangePrecision precision, DateTimeOffset utcTimestamp)
{
if (precision < DateRangePrecision.Year || precision > DateRangePrecision.Millisecond)
{
throw new ArgumentOutOfRangeException("precision");
}
if (utcTimestamp.Offset != TimeSpan.Zero)
{
throw new ArgumentException("Timestamp should be a UTC time", "utcTimestamp");
}
_timestamp = utcTimestamp;
_precision = precision;
}
public static DateRange Create(DateRangePrecision precision, int span, DateTime? dateTime = null)
{
DateTime dt = dateTime ?? DateTime.Today;
DateRange dateRange;
switch (precision)
{
case DateRangePrecision.Seconds:
dateRange = new DateRange(dt.Add(new TimeSpan(0, 0, span)), dt);
break;
case DateRangePrecision.Minutes:
dateRange = new DateRange(dt.Add(new TimeSpan(0, span, 0)), dt);
break;
case DateRangePrecision.Hours:
dateRange = new DateRange(dt.Add(new TimeSpan(span, 0, 0)), dt);
break;
case DateRangePrecision.Days:
dateRange = new DateRange(dt.Add(new TimeSpan(span, 0, 0, 0, 0)), dt);
break;
case DateRangePrecision.Months:
dateRange = new DateRange(dt.AddMonths(span), dt.AddDays(-1));
break;
case DateRangePrecision.Year:
dateRange = new DateRange(dt.AddYears(span), dt);
break;
default:
dateRange = DateRange.Empty;
break;
}
dateRange.Kind = DateRangeKind.Custom;
return dateRange;
}
private void Set(DateRangePrecision precision, int value)
{
_values[(int)precision] = value;
}
/// <summary>
/// Creates a new instance of <see cref="DateRangeBound"/>.
/// </summary>
public DateRangeBound(DateTimeOffset timestamp, DateRangePrecision precision) :
this(precision, timestamp.ToUniversalTime())
{
}
/// <summary>
/// Private constructor only intended for creating the unbounded instance
/// </summary>
// ReSharper disable once UnusedParameter.Local
private DateRangeBound(bool asUnbounded)
{
// Workaround: we can not declare a parameter-less constructor on a struct
_timestamp = DateTimeOffset.MinValue;
_precision = (DateRangePrecision)byte.MaxValue;
}
