andreachild commented on code in PR #3090: URL: https://github.com/apache/tinkerpop/pull/3090#discussion_r2032186414
########## gremlin-dotnet/src/Gremlin.Net/Structure/IO/GraphBinary/Types/OffsetDateTimeSerializer.cs: ########## @@ -0,0 +1,81 @@ +#region License + +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#endregion + +using System; +using System.IO; +using System.Threading; +using System.Threading.Tasks; + +namespace Gremlin.Net.Structure.IO.GraphBinary.Types +{ + /// <summary> + /// A serializer for the GraphBinary type OffsetDateTime, represented as <see cref="DateTimeOffset"/> + /// in .NET. + /// </summary> + public class OffsetDateTimeSerializer : SimpleTypeSerializer<DateTimeOffset> + { + + /// <summary> + /// Initializes a new instance of the <see cref="OffsetDateTimeSerializer" /> class. + /// </summary> + public OffsetDateTimeSerializer() : base(DataType.OffsetDateTime) + { + } + + /// <inheritdoc /> + protected override async Task WriteValueAsync(DateTimeOffset value, Stream stream, GraphBinaryWriter writer, + CancellationToken cancellationToken = default) + { + await stream.WriteIntAsync(value.Year, cancellationToken).ConfigureAwait(false); + await stream.WriteByteAsync(Convert.ToByte(value.Month), cancellationToken).ConfigureAwait(false); + await stream.WriteByteAsync(Convert.ToByte(value.Day), cancellationToken).ConfigureAwait(false); + var h = value.Hour; + var m = value.Minute; + var s = value.Second; + var ms = value.Millisecond; + // Note there will be precision loss as microsecond and nanosecond access was added after .net 7 + var ns = h * 60 * 60 * 1e9 + m * 60 * 1e9 + s * 1e9 + ms * 1e6; Review Comment: Q says obtaining nanoseconds is possible using `Ticks`: ``` // Convert the time portion of DateTimeOffset to nanoseconds since midnight static long TimeToNanosecondsSinceMidnight(DateTimeOffset dto) { // Get the time of day as TimeSpan TimeSpan timeOfDay = dto.TimeOfDay; // Convert ticks to nanoseconds (1 tick = 100 nanoseconds in .NET) return timeOfDay.Ticks * 100; } ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
