public DateTimeOffsetConverter(string format, DateTimeKind kind, byte filler, Type type)
{
length = format.Length;
entries = DateTimeByteHelper.ParseDateTimeFormat(format, out hasDatePart);
this.kind = kind;
this.filler = filler;
defaultValue = type.GetDefaultValue();
}
public void Write(byte[] buffer, int index, object value)
{
if (value is null)
{
BytesHelper.Fill(buffer, index, length, filler);
}
else
{
DateTimeByteHelper.FormatDateTime(buffer, index, hasDatePart, entries, ((DateTimeOffset)value).UtcDateTime);
}
}
public object Read(byte[] buffer, int index)
{
if (DateTimeByteHelper.TryParseDateTime(buffer, index, entries, kind, out var result))
{
if (kind == DateTimeKind.Unspecified)
{
return(new DateTimeOffset(result, TimeSpan.Zero));
}
if (kind == DateTimeKind.Utc)
{
return(new DateTimeOffset(result));
}
var offset = TimeZoneInfo.Local.GetUtcOffset(result);
var utcTick = result.Ticks - offset.Ticks;
if (DateTimeHelper.IsValidTicks(utcTick))
{
return(new DateTimeOffset(result, offset));
}
}
return(defaultValue);
}
public object Read(byte[] buffer, int index)
{
return(DateTimeByteHelper.TryParseDateTime(buffer, index, entries, kind, out var result)
? result
: defaultValue);
}
