78 lines
1.9 KiB
C#
78 lines
1.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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namespace MessagePack.Formatters
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{
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/// <summary>
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/// Serialization of an <see cref="IPAddress"/> array to and from <see cref="MessagePack"/>.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
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public class IPAddressArrayFormatter : IMessagePackFormatter<IPAddress[]>
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{
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/// <inheritdoc/>
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public IPAddress[] Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)
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{
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if (reader.IsNil)
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return null;
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int bytePos = 0;
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byte[] bytes = options.Resolver.GetFormatterWithVerify<byte[]>().Deserialize(ref reader, options);
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byte[] buffer = bytes.Skip(bytePos).Take(sizeof(int)).ToArray();
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bytePos += sizeof(int);
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Swap(buffer);
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int length = BitConverter.ToInt32(buffer, 0);
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int arrayPos = 0;
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var array = new IPAddress[length];
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while (bytePos < bytes.Length)
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{
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byte len = bytes.Skip(bytePos).First();
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bytePos++;
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buffer = bytes.Skip(bytePos).Take(len).ToArray();
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bytePos += len;
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array[arrayPos] = new IPAddress(buffer);
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arrayPos++;
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}
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return array;
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}
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/// <inheritdoc/>
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public void Serialize(ref MessagePackWriter writer, IPAddress[] value, MessagePackSerializerOptions options)
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{
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if (value == null)
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{
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writer.WriteNil();
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return;
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}
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var bytes = new List<byte>();
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int length = value.Length;
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byte[] buffer = BitConverter.GetBytes(length);
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Swap(buffer);
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bytes.AddRange(buffer);
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foreach (var ip in value)
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{
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buffer = ip.GetAddressBytes();
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bytes.Add((byte)buffer.Length);
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bytes.AddRange(buffer);
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}
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options.Resolver.GetFormatterWithVerify<byte[]>().Serialize(ref writer, bytes.ToArray(), options);
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}
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private void Swap(byte[] bytes)
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{
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if (BitConverter.IsLittleEndian)
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Array.Reverse(bytes);
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}
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}
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}
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