internal void HandleStringPoolField(TzdbStreamField field)
{
CheckSingleField(field, stringPool);
using (var stream = field.CreateStream())
{
var reader = new DateTimeZoneReader(stream, null);
int count = reader.ReadCount();
stringPool = new string[count];
for (int i = 0; i < count; i++)
{
stringPool[i] = reader.ReadString();
}
}
}
internal void HandleZone1970LocationsField(TzdbStreamField field)
{
CheckSingleField(field, zone1970Locations);
CheckStringPoolPresence(field);
using (var stream = field.CreateStream())
{
var reader = new DateTimeZoneReader(stream, stringPool);
var count = reader.ReadCount();
var array = new TzdbZone1970Location[count];
for (int i = 0; i < count; i++)
{
array[i] = TzdbZone1970Location.Read(reader);
}
zone1970Locations = array;
}
}
internal void HandleZoneField(TzdbStreamField field)
{
CheckStringPoolPresence(field);
// Just read the ID from the zone - we don't parse the data yet.
// (We could, but we might as well be lazy.)
using (var stream = field.CreateStream())
{
var reader = new DateTimeZoneReader(stream, stringPool);
string id = reader.ReadString();
if (zoneFields.ContainsKey(id))
{
throw new InvalidNodaDataException("Multiple definitions for zone " + id);
}
zoneFields[id] = field;
}
}
internal static TzdbStreamData FromStream([NotNull] Stream stream)
{
Preconditions.CheckNotNull(stream, nameof(stream));
int version = new BinaryReader(stream).ReadInt32();
if (version != AcceptedVersion)
{
throw new InvalidNodaDataException("Unable to read stream with version " + version);
}
Builder builder = new Builder();
foreach (var field in TzdbStreamField.ReadFields(stream))
{
// Only handle fields we know about
if (FieldHandlers.TryGetValue(field.Id, out Action <Builder, TzdbStreamField> handler))
{
handler(builder, field);
}
}
return(new TzdbStreamData(builder));
}
internal void HandleSupplementalWindowsZonesField(TzdbStreamField field)
{
CheckSingleField(field, windowsMapping);
windowsMapping = field.ExtractSingleValue(WindowsZones.Read, stringPool);
}
internal void HandleTzdbIdMapField(TzdbStreamField field)
{
CheckSingleField(field, tzdbIdMap);
tzdbIdMap = field.ExtractSingleValue(reader => reader.ReadDictionary(), stringPool);
}
internal void HandleTzdbVersionField(TzdbStreamField field)
{
CheckSingleField(field, tzdbVersion);
tzdbVersion = field.ExtractSingleValue(reader => reader.ReadString(), null);
}
internal void HandleTzdbIdMapField(TzdbStreamField field)
{
CheckSingleField(field, tzdbIdMap);
tzdbIdMap = field.ExtractSingleValue(stringPool);
}
internal void HandleTzdbVersionField(TzdbStreamField field)
{
CheckSingleField(field, tzdbVersion);
tzdbVersion = "2013a";
}