public void Serialization()
{
var location = new TzdbZoneLocation(
60 * 3600 + 15 * 60 + 5,
100 * 3600 + 30 * 60 + 10,
"Country name",
"CO",
"Etc/MadeUpZone",
"Comment");
var stream = new MemoryStream();
var writer = new DateTimeZoneWriter(stream, null);
location.Write(writer);
stream.Position = 0;
var reader = new DateTimeZoneReader(stream, null);
var location2 = TzdbZoneLocation.Read(reader);
Assert.AreEqual(60.25 + 5.0 / 3600, location2.Latitude, 0.000001);
Assert.AreEqual(100.5 + 10.0 / 3600, location2.Longitude, 0.000001);
Assert.AreEqual("Country name", location2.CountryName);
Assert.AreEqual("CO", location2.CountryCode);
Assert.AreEqual("Etc/MadeUpZone", location2.ZoneId);
Assert.AreEqual("Comment", location2.Comment);
}
internal Location(TzdbZoneLocation location)
{
CountryCode = location.CountryCode;
CountryName = location.CountryName;
Comment = location.Comment;
Latitude = location.Latitude;
Longitude = location.Longitude;
}
internal void HandleZoneLocationsField(TzdbStreamField field)
{
CheckSingleField(field, zoneLocations);
CheckStringPoolPresence(field);
using (var stream = field.CreateStream())
{
var reader = new DateTimeZoneReader(stream, stringPool);
var count = reader.ReadCount();
var array = new TzdbZoneLocation[count];
for (int i = 0; i < count; i++)
{
array[i] = TzdbZoneLocation.Read(reader);
}
zoneLocations = array;
}
}
public void Valid()
{
var location = new TzdbZoneLocation(
60 * 3600 + 15 * 60 + 5,
100 * 3600 + 30 * 60 + 10,
"Country name",
"CO",
"Etc/MadeUpZone",
"Comment");
Assert.AreEqual(60.25 + 5.0 / 3600, location.Latitude, 0.000001);
Assert.AreEqual(100.5 + 10.0 / 3600, location.Longitude, 0.000001);
Assert.AreEqual("Country name", location.CountryName);
Assert.AreEqual("CO", location.CountryCode);
Assert.AreEqual("Etc/MadeUpZone", location.ZoneId);
Assert.AreEqual("Comment", location.Comment);
}
/// <summary>
/// Find the time in a certain city or country, if city and country are specified both are used, if one is missing only
/// the other is used. If none are present it will return default(ZonedDateTime).
/// </summary>
/// <param name="city">The city, "New York"</param>
/// <param name="country">The country, "United States"</param>
/// <returns>The zoned date time of the current time in that location or default(ZonedDateTime).</returns>
public static ZonedDateTime TimeIn(out TzdbZoneLocation loc, string city = null, string country = null)
{
IClock clock = SystemClock.Instance;
TzdbZoneLocation location = null;
if (!string.IsNullOrEmpty(country) && !string.IsNullOrEmpty(city))
{
location = TzdbDateTimeZoneSource
.Default
.ZoneLocations
.FirstOrDefault(l => l.CountryName.ToLowerInvariant().StartsWith(country.ToLowerInvariant()) &&
l.ZoneId.Split('/')[1]
.ToLowerInvariant()
.Replace("_", " ")
.StartsWith(city.ToLowerInvariant())
);
}
else if (!string.IsNullOrEmpty(city))
{
location = TzdbDateTimeZoneSource
.Default
.ZoneLocations
.FirstOrDefault(l => l.ZoneId.Split('/')[1]
.ToLowerInvariant()
.Replace("_", " ")
.StartsWith(city.ToLowerInvariant())
);
}
else if (!string.IsNullOrEmpty(country))
{
location = TzdbDateTimeZoneSource
.Default
.ZoneLocations
.FirstOrDefault(l => l.CountryName.ToLowerInvariant()
.StartsWith(country.ToLowerInvariant()));
}
loc = location;
if (location != null)
{
var zone = DateTimeZoneProviders.Tzdb[location.ZoneId];
return(clock.GetCurrentInstant().InZone(zone));
}
return(default);
public void ReadInvalid()
{
var stream = new MemoryStream();
var writer = new DateTimeZoneWriter(stream, null);
// This is invalid
writer.WriteSignedCount(90 * 3600 + 1);
writer.WriteSignedCount(0);
writer.WriteString("name");
writer.WriteString("co");
writer.WriteString("Europe/Somewhere");
writer.WriteString("");
stream.Position = 0;
var reader = new DateTimeZoneReader(stream, null);
Assert.Throws <InvalidNodaDataException>(() => TzdbZoneLocation.Read(reader));
}
private TimeZoneInfo GetZoneInfo(TzdbZoneLocation location)
{
var zone = DateTimeZoneProviders.Tzdb[location.ZoneId];
// Get the start and end of the year in this zone
var startOfYear = zone.AtStartOfDay(new LocalDate(2017, 1, 1));
var endOfYear = zone.AtStrictly(new LocalDate(2018, 1, 1).AtMidnight().PlusNanoseconds(-1));
// Get all intervals for current year
var intervals = zone.GetZoneIntervals(startOfYear.ToInstant(), endOfYear.ToInstant()).ToList();
// Try grab interval with DST. If none present, grab first one we can find
var interval = intervals.FirstOrDefault(i => i.Savings.Seconds > 0) ?? intervals.FirstOrDefault();
return(new TimeZoneInfo
{
TimeZoneId = location.ZoneId,
Offset = interval.StandardOffset.ToTimeSpan(),
DstOffset = interval.WallOffset.ToTimeSpan(),
CountryCode = location.CountryCode,
CountryName = location.CountryName
});
}
