/// <summary>
/// Creates a provider backed by the given <see cref="IDateTimeZoneSource"/>.
/// </summary>
/// <remarks>
/// Note that the source will never be consulted for requests for the fixed-offset timezones "UTC" and
/// "UTC+/-Offset" (a standard implementation will be returned instead). This is true even if these IDs are
/// advertised by the source.
/// </remarks>
/// <param name="source">The <see cref="IDateTimeZoneSource"/> for this provider.</param>
/// <exception cref="InvalidDateTimeZoneSourceException"><paramref name="source"/> violates its contract.</exception>
public DateTimeZoneCache([NotNull] IDateTimeZoneSource source)
{
this.source = Preconditions.CheckNotNull(source, nameof(source));
this.VersionId = source.VersionId;
if (VersionId == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned version ID was null");
}
var providerIds = source.GetIds();
if (providerIds == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned ID sequence was null");
}
var idList = new List <string>(providerIds);
idList.Sort(StringComparer.Ordinal);
Ids = new ReadOnlyCollection <string>(idList);
// Populate the dictionary with null values meaning "the ID is valid, we haven't fetched the zone yet".
foreach (string id in Ids)
{
if (id == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned ID sequence contained a null reference");
}
timeZoneMap[id] = null;
}
}
/// <summary>
/// Creates a provider backed by the given <see cref="IDateTimeZoneSource"/>.
/// </summary>
/// <remarks>
/// Note that the source will never be consulted for requests for the fixed-offset timezones "UTC" and
/// "UTC+/-Offset" (a standard implementation will be returned instead). This is true even if these IDs are
/// advertised by the source.
/// </remarks>
/// <param name="source">The <see cref="IDateTimeZoneSource"/> for this provider.</param>
/// <exception cref="InvalidDateTimeZoneSourceException"><paramref name="source"/> violates its contract.</exception>
public DateTimeZoneCache([NotNull] IDateTimeZoneSource source)
{
this.source = Preconditions.CheckNotNull(source, nameof(source));
this.VersionId = source.VersionId;
if (VersionId == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned version ID was null");
}
var providerIds = source.GetIds();
if (providerIds == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned ID sequence was null");
}
var idList = new List<string>(providerIds);
idList.Sort(StringComparer.Ordinal);
Ids = new ReadOnlyCollection<string>(idList);
// Populate the dictionary with null values meaning "the ID is valid, we haven't fetched the zone yet".
foreach (string id in Ids)
{
if (id == null)
{
throw new InvalidDateTimeZoneSourceException("Source-returned ID sequence contained a null reference");
}
timeZoneMap[id] = null;
}
}
private static int Main(string[] args)
{
Options options = new Options();
ICommandLineParser parser = new CommandLineParser(new CommandLineParserSettings(Console.Error));
if (!parser.ParseArguments(args, options))
{
return(1);
}
if (options.FromYear > options.ToYear)
{
Console.WriteLine("Error: 'from' year must be not be later than 'to' year");
return(1);
}
IDateTimeZoneSource source = TzdbDateTimeZoneSource.Default;
if (options.File != null)
{
using (var stream = File.OpenRead(options.File))
{
source = TzdbDateTimeZoneSource.FromStream(stream);
}
}
Console.WriteLine("TZDB version: {0}", source.VersionId);
var provider = new DateTimeZoneCache(source);
if (options.Zone != null)
{
var zone = provider.GetZoneOrNull(options.Zone);
if (zone == null)
{
Console.WriteLine("Unknown time zone: {0}", options.Zone);
return(1);
}
DumpZone(zone, Console.Out, options.FromYear, options.ToYear);
}
else
{
foreach (var id in provider.Ids)
{
DumpZone(provider[id], Console.Out, options.FromYear, options.ToYear);
}
}
return(0);
}
public NodaTimeConverterService(IDateTimeZoneProvider timeZoneProvider, IDateTimeZoneSource timeZoneSource)
{
this.TimeZoneProvider = timeZoneProvider;
this.TimeZoneSource = timeZoneSource;
}
