internal static StandardDaylightAlternatingMap Read(IDateTimeZoneReader reader)
{
Preconditions.CheckNotNull(reader, nameof(reader));
Offset standardOffset = reader.ReadOffset();
string standardName = reader.ReadString();
ZoneYearOffset standardYearOffset = ZoneYearOffset.Read(reader);
string daylightName = reader.ReadString();
ZoneYearOffset daylightYearOffset = ZoneYearOffset.Read(reader);
Offset savings = reader.ReadOffset();
ZoneRecurrence standardRecurrence = new ZoneRecurrence(standardName, Offset.Zero, standardYearOffset, int.MinValue, int.MaxValue);
ZoneRecurrence dstRecurrence = new ZoneRecurrence(daylightName, savings, daylightYearOffset, int.MinValue, int.MaxValue);
return(new StandardDaylightAlternatingMap(standardOffset, standardRecurrence, dstRecurrence));
}
/// <summary>
/// Reads a fixed time zone from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="id">The id.</param>
/// <returns>The fixed time zone.</returns>
public static DateTimeZone Read(IDateTimeZoneReader reader, string id)
{
Preconditions.CheckNotNull(reader, "reader");
Preconditions.CheckNotNull(reader, "id");
var offset = reader.ReadOffset();
return(new FixedDateTimeZone(id, offset));
}
/// <summary>
/// Reads a fixed time zone from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="id">The id.</param>
/// <returns>The fixed time zone.</returns>
public static DateTimeZone Read([NotNull] IDateTimeZoneReader reader, [NotNull] string id)
{
Preconditions.CheckNotNull(reader, nameof(reader));
Preconditions.CheckNotNull(id, nameof(id));
var offset = reader.ReadOffset();
var name = reader.HasMoreData ? reader.ReadString() : id;
return(new FixedDateTimeZone(id, offset, name));
}
/// <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 Read(IDateTimeZoneReader reader, string id)
{
int size = reader.ReadCount();
var periods = new ZoneInterval[size];
var start = reader.ReadZoneIntervalTransition(null);
for (int i = 0; i < size; i++)
{
var name = reader.ReadString();
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.ReadByte() == 1 ? DaylightSavingsDateTimeZone.Read(reader, id + "-tail") : null;
return(new PrecalculatedDateTimeZone(id, periods, tailZone));
}
/// <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>
internal static DateTimeZone Read([Trusted][NotNull] IDateTimeZoneReader reader, [Trusted][NotNull] string id)
{
Preconditions.DebugCheckNotNull(reader, nameof(reader));
Preconditions.DebugCheckNotNull(id, nameof(id));
int size = reader.ReadCount();
var periods = new ZoneInterval[size];
// It's not entirely clear why we don't just assume that the first zone interval always starts at Instant.BeforeMinValue
// (given that we check that later) but we don't... and changing that now could cause compatibility issues.
var start = reader.ReadZoneIntervalTransition(null);
for (int i = 0; i < size; i++)
{
var name = reader.ReadString();
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.ReadByte() == 1 ? DaylightSavingsDateTimeZone.Read(reader, id + "-tail") : null;
return(new PrecalculatedDateTimeZone(id, periods, tailZone));
}
/// <summary>
/// Reads a recurrence from the specified reader.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns>The recurrence read from the reader.</returns>
public static ZoneRecurrence Read(IDateTimeZoneReader reader)
{
Preconditions.CheckNotNull(reader, "reader");
string name = reader.ReadString();
Offset savings = reader.ReadOffset();
ZoneYearOffset yearOffset = ZoneYearOffset.Read(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 Read(IDateTimeZoneReader reader)
{
Preconditions.CheckNotNull(reader, "reader");
int flags = reader.ReadByte();
var mode = (TransitionMode)(flags >> 5);
var dayOfWeek = (flags >> 2) & 7;
var advance = (flags & 2) != 0;
var addDay = (flags & 1) != 0;
int monthOfYear = reader.ReadCount();
int dayOfMonth = reader.ReadSignedCount();
// The time of day is written as an offset for historical reasons.
var ticksOfDay = reader.ReadOffset();
return(new ZoneYearOffset(mode, monthOfYear, dayOfMonth, dayOfWeek, advance,
new LocalTime(ticksOfDay.Ticks), addDay));
}