diff options
Diffstat (limited to 'third_party/protobuf/csharp/src/Google.Protobuf/WellKnownTypes/TimestampPartial.cs')
| -rw-r--r-- | third_party/protobuf/csharp/src/Google.Protobuf/WellKnownTypes/TimestampPartial.cs | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf/WellKnownTypes/TimestampPartial.cs b/third_party/protobuf/csharp/src/Google.Protobuf/WellKnownTypes/TimestampPartial.cs deleted file mode 100644 index aa40347342..0000000000 --- a/third_party/protobuf/csharp/src/Google.Protobuf/WellKnownTypes/TimestampPartial.cs +++ /dev/null @@ -1,241 +0,0 @@ -#region Copyright notice and license -// Protocol Buffers - Google's data interchange format -// Copyright 2015 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -#endregion - -using System; -using System.Globalization; -using System.Text; - -namespace Google.Protobuf.WellKnownTypes -{ - public partial class Timestamp : ICustomDiagnosticMessage - { - private static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); - // Constants determined programmatically, but then hard-coded so they can be constant expressions. - private const long BclSecondsAtUnixEpoch = 62135596800; - internal const long UnixSecondsAtBclMaxValue = 253402300799; - internal const long UnixSecondsAtBclMinValue = -BclSecondsAtUnixEpoch; - internal const int MaxNanos = Duration.NanosecondsPerSecond - 1; - - private static bool IsNormalized(long seconds, int nanoseconds) => - nanoseconds >= 0 && - nanoseconds <= MaxNanos && - seconds >= UnixSecondsAtBclMinValue && - seconds <= UnixSecondsAtBclMaxValue; - - /// <summary> - /// Returns the difference between one <see cref="Timestamp"/> and another, as a <see cref="Duration"/>. - /// </summary> - /// <param name="lhs">The timestamp to subtract from. Must not be null.</param> - /// <param name="rhs">The timestamp to subtract. Must not be null.</param> - /// <returns>The difference between the two specified timestamps.</returns> - public static Duration operator -(Timestamp lhs, Timestamp rhs) - { - ProtoPreconditions.CheckNotNull(lhs, "lhs"); - ProtoPreconditions.CheckNotNull(rhs, "rhs"); - checked - { - return Duration.Normalize(lhs.Seconds - rhs.Seconds, lhs.Nanos - rhs.Nanos); - } - } - - /// <summary> - /// Adds a <see cref="Duration"/> to a <see cref="Timestamp"/>, to obtain another <c>Timestamp</c>. - /// </summary> - /// <param name="lhs">The timestamp to add the duration to. Must not be null.</param> - /// <param name="rhs">The duration to add. Must not be null.</param> - /// <returns>The result of adding the duration to the timestamp.</returns> - public static Timestamp operator +(Timestamp lhs, Duration rhs) - { - ProtoPreconditions.CheckNotNull(lhs, "lhs"); - ProtoPreconditions.CheckNotNull(rhs, "rhs"); - checked - { - return Normalize(lhs.Seconds + rhs.Seconds, lhs.Nanos + rhs.Nanos); - } - } - - /// <summary> - /// Subtracts a <see cref="Duration"/> from a <see cref="Timestamp"/>, to obtain another <c>Timestamp</c>. - /// </summary> - /// <param name="lhs">The timestamp to subtract the duration from. Must not be null.</param> - /// <param name="rhs">The duration to subtract.</param> - /// <returns>The result of subtracting the duration from the timestamp.</returns> - public static Timestamp operator -(Timestamp lhs, Duration rhs) - { - ProtoPreconditions.CheckNotNull(lhs, "lhs"); - ProtoPreconditions.CheckNotNull(rhs, "rhs"); - checked - { - return Normalize(lhs.Seconds - rhs.Seconds, lhs.Nanos - rhs.Nanos); - } - } - - /// <summary> - /// Converts this timestamp into a <see cref="DateTime"/>. - /// </summary> - /// <remarks> - /// The resulting <c>DateTime</c> will always have a <c>Kind</c> of <c>Utc</c>. - /// If the timestamp is not a precise number of ticks, it will be truncated towards the start - /// of time. For example, a timestamp with a <see cref="Nanos"/> value of 99 will result in a - /// <see cref="DateTime"/> value precisely on a second. - /// </remarks> - /// <returns>This timestamp as a <c>DateTime</c>.</returns> - /// <exception cref="InvalidOperationException">The timestamp contains invalid values; either it is - /// incorrectly normalized or is outside the valid range.</exception> - public DateTime ToDateTime() - { - if (!IsNormalized(Seconds, Nanos)) - { - throw new InvalidOperationException(@"Timestamp contains invalid values: Seconds={Seconds}; Nanos={Nanos}"); - } - return UnixEpoch.AddSeconds(Seconds).AddTicks(Nanos / Duration.NanosecondsPerTick); - } - - /// <summary> - /// Converts this timestamp into a <see cref="DateTimeOffset"/>. - /// </summary> - /// <remarks> - /// The resulting <c>DateTimeOffset</c> will always have an <c>Offset</c> of zero. - /// If the timestamp is not a precise number of ticks, it will be truncated towards the start - /// of time. For example, a timestamp with a <see cref="Nanos"/> value of 99 will result in a - /// <see cref="DateTimeOffset"/> value precisely on a second. - /// </remarks> - /// <returns>This timestamp as a <c>DateTimeOffset</c>.</returns> - /// <exception cref="InvalidOperationException">The timestamp contains invalid values; either it is - /// incorrectly normalized or is outside the valid range.</exception> - public DateTimeOffset ToDateTimeOffset() - { - return new DateTimeOffset(ToDateTime(), TimeSpan.Zero); - } - - /// <summary> - /// Converts the specified <see cref="DateTime"/> to a <see cref="Timestamp"/>. - /// </summary> - /// <param name="dateTime"></param> - /// <exception cref="ArgumentException">The <c>Kind</c> of <paramref name="dateTime"/> is not <c>DateTimeKind.Utc</c>.</exception> - /// <returns>The converted timestamp.</returns> - public static Timestamp FromDateTime(DateTime dateTime) - { - if (dateTime.Kind != DateTimeKind.Utc) - { - throw new ArgumentException("Conversion from DateTime to Timestamp requires the DateTime kind to be Utc", "dateTime"); - } - // Do the arithmetic using DateTime.Ticks, which is always non-negative, making things simpler. - long secondsSinceBclEpoch = dateTime.Ticks / TimeSpan.TicksPerSecond; - int nanoseconds = (int) (dateTime.Ticks % TimeSpan.TicksPerSecond) * Duration.NanosecondsPerTick; - return new Timestamp { Seconds = secondsSinceBclEpoch - BclSecondsAtUnixEpoch, Nanos = nanoseconds }; - } - - /// <summary> - /// Converts the given <see cref="DateTimeOffset"/> to a <see cref="Timestamp"/> - /// </summary> - /// <remarks>The offset is taken into consideration when converting the value (so the same instant in time - /// is represented) but is not a separate part of the resulting value. In other words, there is no - /// roundtrip operation to retrieve the original <c>DateTimeOffset</c>.</remarks> - /// <param name="dateTimeOffset">The date and time (with UTC offset) to convert to a timestamp.</param> - /// <returns>The converted timestamp.</returns> - public static Timestamp FromDateTimeOffset(DateTimeOffset dateTimeOffset) - { - // We don't need to worry about this having negative ticks: DateTimeOffset is constrained to handle - // values whose *UTC* value is in the range of DateTime. - return FromDateTime(dateTimeOffset.UtcDateTime); - } - - internal static Timestamp Normalize(long seconds, int nanoseconds) - { - int extraSeconds = nanoseconds / Duration.NanosecondsPerSecond; - seconds += extraSeconds; - nanoseconds -= extraSeconds * Duration.NanosecondsPerSecond; - - if (nanoseconds < 0) - { - nanoseconds += Duration.NanosecondsPerSecond; - seconds--; - } - return new Timestamp { Seconds = seconds, Nanos = nanoseconds }; - } - - /// <summary> - /// Converts a timestamp specified in seconds/nanoseconds to a string. - /// </summary> - /// <remarks> - /// If the value is a normalized duration in the range described in <c>timestamp.proto</c>, - /// <paramref name="diagnosticOnly"/> is ignored. Otherwise, if the parameter is <c>true</c>, - /// a JSON object with a warning is returned; if it is <c>false</c>, an <see cref="InvalidOperationException"/> is thrown. - /// </remarks> - /// <param name="seconds">Seconds portion of the duration.</param> - /// <param name="nanoseconds">Nanoseconds portion of the duration.</param> - /// <param name="diagnosticOnly">Determines the handling of non-normalized values</param> - /// <exception cref="InvalidOperationException">The represented duration is invalid, and <paramref name="diagnosticOnly"/> is <c>false</c>.</exception> - internal static string ToJson(long seconds, int nanoseconds, bool diagnosticOnly) - { - if (IsNormalized(seconds, nanoseconds)) - { - // Use .NET's formatting for the value down to the second, including an opening double quote (as it's a string value) - DateTime dateTime = UnixEpoch.AddSeconds(seconds); - var builder = new StringBuilder(); - builder.Append('"'); - builder.Append(dateTime.ToString("yyyy'-'MM'-'dd'T'HH:mm:ss", CultureInfo.InvariantCulture)); - Duration.AppendNanoseconds(builder, nanoseconds); - builder.Append("Z\""); - return builder.ToString(); - } - if (diagnosticOnly) - { - return string.Format(CultureInfo.InvariantCulture, - "{{ \"@warning\": \"Invalid Timestamp\", \"seconds\": \"{0}\", \"nanos\": {1} }}", - seconds, - nanoseconds); - } - else - { - throw new InvalidOperationException("Non-normalized timestamp value"); - } - } - - /// <summary> - /// Returns a string representation of this <see cref="Timestamp"/> for diagnostic purposes. - /// </summary> - /// <remarks> - /// Normally the returned value will be a JSON string value (including leading and trailing quotes) but - /// when the value is non-normalized or out of range, a JSON object representation will be returned - /// instead, including a warning. This is to avoid exceptions being thrown when trying to - /// diagnose problems - the regular JSON formatter will still throw an exception for non-normalized - /// values. - /// </remarks> - /// <returns>A string representation of this value.</returns> - public string ToDiagnosticString() - { - return ToJson(Seconds, Nanos, true); - } - } -} |