/// <summary>
/// Reads a time zone from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="id">The id.</param>
/// <returns>The time zone.</returns>
public static DateTimeZone ReadLegacy(LegacyDateTimeZoneReader reader, string id)
{
string[] stringPool = new string[reader.ReadCount()];
for (int i = 0; i < stringPool.Length; i++)
{
stringPool[i] = reader.ReadString();
}
int size = reader.ReadCount();
var periods = new ZoneInterval[size];
var start = reader.ReadZoneIntervalTransition(null);
for (int i = 0; i < size; i++)
{
int nameIndex = stringPool.Length < 256 ? reader.ReadByte() : reader.ReadInt32();
var name = stringPool[nameIndex];
var offset = reader.ReadOffset();
var savings = reader.ReadOffset();
var nextStart = reader.ReadZoneIntervalTransition(start);
periods[i] = new ZoneInterval(name, start, nextStart, offset, savings);
start = nextStart;
}
var tailZone = reader.ReadTimeZone(id + "-tail");
return(new PrecalculatedDateTimeZone(id, periods, tailZone));
}
/// <summary>
/// Reads the zone from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="id">The id.</param>
/// <returns></returns>
internal static DateTimeZone ReadLegacy(LegacyDateTimeZoneReader reader, string id)
{
Preconditions.CheckNotNull(reader, "reader");
var timeZone = reader.ReadTimeZone(id);
return(ForZone(timeZone));
}
internal static DateTimeZone ReadLegacy(LegacyDateTimeZoneReader reader, string id)
{
Preconditions.CheckNotNull(reader, "reader");
Offset offset = reader.ReadOffset();
ZoneRecurrence start = ZoneRecurrence.ReadLegacy(reader);
ZoneRecurrence end = ZoneRecurrence.ReadLegacy(reader);
return(new DaylightSavingsDateTimeZone(id, offset, start, end));
}
internal static ZoneRecurrence ReadLegacy(LegacyDateTimeZoneReader reader)
{
Preconditions.CheckNotNull(reader, "reader");
string name = reader.ReadString();
Offset savings = reader.ReadOffset();
ZoneYearOffset yearOffset = ZoneYearOffset.ReadLegacy(reader);
int fromYear = reader.ReadCount();
if (fromYear == 0)
{
fromYear = int.MinValue;
}
int toYear = reader.ReadCount();
return(new ZoneRecurrence(name, savings, yearOffset, fromYear, toYear));
}
public static ZoneYearOffset ReadLegacy(LegacyDateTimeZoneReader reader)
{
Preconditions.CheckNotNull(reader, "reader");
var mode = (TransitionMode)reader.ReadCount();
// Remove the additions performed before
int monthOfYear = reader.ReadCount() - 12;
int dayOfMonth = reader.ReadCount() - 31;
int dayOfWeek = reader.ReadCount() - 7;
bool advance = reader.ReadBoolean();
// The time of day is written as an offset for historical reasons.
var ticksOfDay = reader.ReadOffset();
var addDay = reader.ReadBoolean();
return(new ZoneYearOffset(mode, monthOfYear, dayOfMonth, dayOfWeek, advance,
new LocalTime(ticksOfDay.Ticks), addDay));
}