| #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.Collections; |
| using System.Collections.Generic; |
| using System.IO; |
| using System.Linq; |
| using System.Threading; |
| using System.Threading.Tasks; |
| |
| namespace Gremlin.Net.Structure.IO.GraphBinary.Types |
| { |
| /// <summary> |
| /// A generic set serializer. |
| /// </summary> |
| /// <typeparam name="TSet">The type of the set to serialize.</typeparam> |
| /// <typeparam name="TMember">The type of elements in the set.</typeparam> |
| public class SetSerializer<TSet, TMember> : SimpleTypeSerializer<TSet> |
| where TSet : ISet<TMember?>, new() |
| { |
| /// <summary> |
| /// Initializes a new instance of the <see cref="SetSerializer{TSet,TMember}" /> class. |
| /// </summary> |
| public SetSerializer() : base(DataType.Set) |
| { |
| } |
| |
| /// <inheritdoc /> |
| protected override async Task WriteValueAsync(TSet value, Stream stream, GraphBinaryWriter writer, |
| CancellationToken cancellationToken = default) |
| { |
| var enumerable = (IEnumerable) value; |
| var list = enumerable.Cast<object>().ToList(); |
| |
| await writer.WriteNonNullableValueAsync(list.Count, stream, cancellationToken).ConfigureAwait(false); |
| |
| foreach (var item in list) |
| { |
| await writer.WriteAsync(item, stream, cancellationToken).ConfigureAwait(false); |
| } |
| } |
| |
| /// <inheritdoc /> |
| protected override async Task<TSet> ReadValueAsync(Stream stream, GraphBinaryReader reader, |
| CancellationToken cancellationToken = default) |
| { |
| var length = (int)await reader.ReadNonNullableValueAsync<int>(stream, cancellationToken).ConfigureAwait(false); |
| var result = new TSet(); |
| for (var i = 0; i < length; i++) |
| { |
| result.Add((TMember?) await reader.ReadAsync(stream, cancellationToken).ConfigureAwait(false)); |
| } |
| |
| return result; |
| } |
| } |
| } |