private static void ReadZone1970Locations(DateTimeZoneReader reader)
{
var count = reader.ReadCount();
Console.WriteLine($" Entries: {count}");
for (int i = 0; i < count; i++)
{
int latitudeSeconds = reader.ReadSignedCount();
int longitudeSeconds = reader.ReadSignedCount();
int countryCount = reader.ReadCount();
StringBuilder countries = new StringBuilder();
for (int j = 0; j < countryCount; j++)
{
countries.Append($"{reader.ReadString()} ({reader.ReadString()}), ");
}
if (countries.Length > 0)
{
// Remove the trailing comma+space.
countries.Length -= 2;
}
string zoneId = reader.ReadString();
string comment = reader.ReadString();
Console.WriteLine($" Lat seconds: {latitudeSeconds}; long seconds: {longitudeSeconds}: countries: [{countries}]; id: {zoneId}; comment: {comment}");
}
}
private static void ReadPrecalculatedTimeZone(DateTimeZoneReader reader)
{
int size = reader.ReadCount();
Console.WriteLine($" Precalculated intervals: {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);
Console.WriteLine(Invariant($" {start:yyyy-MM-dd'T'HH:mm:ss} - {nextStart:yyyy-MM-dd'T'HH:mm:ss}; wall offset: {offset}; savings: {savings}; name: {name}"));
start = nextStart;
}
if (reader.ReadByte() == 1)
{
Offset standardOffset = reader.ReadOffset();
string standardName = reader.ReadString();
ZoneYearOffset standardYearOffset = ZoneYearOffset.Read(reader);
string daylightName = reader.ReadString();
ZoneYearOffset daylightYearOffset = ZoneYearOffset.Read(reader);
Offset savings = reader.ReadOffset();
Console.WriteLine(" Tail zone:");
Console.WriteLine($" Standard time: {standardYearOffset}; offset: {standardOffset}; name: {standardName}");
Console.WriteLine($" Daylight time: {daylightYearOffset}; offset: {standardOffset + savings}; name: {daylightName}");
}
else
{
Console.WriteLine(" No tail zone");
}
}
private static void ReadMap(DateTimeZoneReader reader)
{
int count = reader.ReadCount();
Console.WriteLine($" Entries: {count}");
for (int i = 0; i < count; i++)
{
string key = reader.ReadString();
string value = reader.ReadString();
Console.WriteLine($" {key} -> {value}");
}
}
private static void ReadZoneLocations(DateTimeZoneReader reader)
{
var count = reader.ReadCount();
Console.WriteLine($" Entries: {count}");
for (int i = 0; i < count; i++)
{
int latitudeSeconds = reader.ReadSignedCount();
int longitudeSeconds = reader.ReadSignedCount();
string countryName = reader.ReadString();
string countryCode = reader.ReadString();
string zoneId = reader.ReadString();
string comment = reader.ReadString();
Console.WriteLine($" Lat seconds: {latitudeSeconds}; long seconds: {longitudeSeconds}: country: {countryName} ({countryCode}); id: {zoneId}; comment: {comment}");
}
}
private static void ReadFixedTimeZone(DateTimeZoneReader reader)
{
Console.WriteLine($" Offset: {reader.ReadOffset()}");
if (reader.HasMoreData)
{
Console.WriteLine($" Name: {reader.ReadString()}");
}
}
public void ReadString_NotEnoughData()
{
// We say there are 5 bytes, but there are only 4 left...
byte[] data = new byte[] { 0x05, 0x40, 0x40, 0x40, 0x40 };
var stream = new MemoryStream(data);
var reader = new DateTimeZoneReader(stream, null);
Assert.Throws <InvalidNodaDataException>(() => reader.ReadString());
}
static int Main(string[] args)
{
if (args.Length != 1)
{
Console.WriteLine("Usage: NodaTime.NzdPrinter <path/url to nzd file>");
return(1);
}
var stream = new MemoryStream(FileUtility.LoadFileOrUrl(args[0]));
int version = new BinaryReader(stream).ReadInt32();
Console.WriteLine($"File format version: {version}");
string[] stringPool = null; // Will be populated before it's used...
foreach (var field in TzdbStreamField.ReadFields(stream))
{
Console.WriteLine($"Field: {field.Id}");
var reader = new DateTimeZoneReader(field.CreateStream(), stringPool);
switch (field.Id)
{
case StringPool:
stringPool = ReadStringPool(reader);
break;
case TzdbStreamFieldId.TimeZone:
ReadTimeZone(reader);
break;
case TzdbVersion:
Console.WriteLine($"TZDB version: {reader.ReadString()}");
break;
case TzdbIdMap:
ReadMap(reader);
break;
case CldrSupplementalWindowsZones:
ReadWindowsZones(reader);
break;
case WindowsAdditionalStandardNameToIdMapping:
ReadMap(reader);
break;
case ZoneLocations:
ReadZoneLocations(reader);
break;
case Zone1970Locations:
ReadZone1970Locations(reader);
break;
}
Console.WriteLine();
}
return(0);
}
private static string[] ReadStringPool(DateTimeZoneReader reader)
{
int count = reader.ReadCount();
Console.WriteLine($" String pool contains {count} entries");
var stringPool = new string[count];
for (int i = 0; i < count; i++)
{
stringPool[i] = reader.ReadString();
}
return(stringPool);
}
private static void ReadTimeZone(DateTimeZoneReader reader)
{
Console.WriteLine($" ID: {reader.ReadString()}");
var type = (DateTimeZoneWriter.DateTimeZoneType)reader.ReadByte();
Console.WriteLine($" Type: {type}");
switch (type)
{
case DateTimeZoneWriter.DateTimeZoneType.Fixed:
ReadFixedTimeZone(reader);
break;
case DateTimeZoneWriter.DateTimeZoneType.Precalculated:
ReadPrecalculatedTimeZone(reader);
break;
default:
Console.WriteLine(" (Unknown time zone type)");
break;
}
}