Bond_009
5 years ago
parent
89a21c96c0
commit
a245f5a0d4
@ -1,48 +0,0 @@
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#pragma warning disable CS1591
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using System.Collections.Generic;
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namespace MediaBrowser.Common.Extensions
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{
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// The MS CollectionExtensions are only available in netcoreapp
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public static class CollectionExtensions
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{
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public static TValue GetValueOrDefault<TKey, TValue>(this IReadOnlyDictionary<TKey, TValue> dictionary, TKey key)
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{
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dictionary.TryGetValue(key, out var ret);
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return ret;
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}
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/// <summary>
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/// Copies all the elements of the current collection to the specified list
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/// starting at the specified destination array index. The index is specified as a 32-bit integer.
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/// </summary>
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/// <param name="source">The current collection that is the source of the elements.</param>
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/// <param name="destination">The list that is the destination of the elements copied from the current collection.</param>
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/// <param name="index">A 32-bit integer that represents the index in <c>destination</c> at which copying begins.</param>
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/// <typeparam name="T"></typeparam>
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public static void CopyTo<T>(this IReadOnlyList<T> source, IList<T> destination, int index = 0)
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{
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for (int i = 0; i < source.Count; i++)
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{
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destination[index + i] = source[i];
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}
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}
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/// <summary>
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/// Copies all the elements of the current collection to the specified list
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/// starting at the specified destination array index. The index is specified as a 32-bit integer.
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/// </summary>
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/// <param name="source">The current collection that is the source of the elements.</param>
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/// <param name="destination">The list that is the destination of the elements copied from the current collection.</param>
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/// <param name="index">A 32-bit integer that represents the index in <c>destination</c> at which copying begins.</param>
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/// <typeparam name="T"></typeparam>
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public static void CopyTo<T>(this IReadOnlyCollection<T> source, IList<T> destination, int index = 0)
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{
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foreach (T item in source)
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{
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destination[index++] = item;
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}
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}
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}
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}
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@ -0,0 +1,26 @@
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using System.Collections.Generic;
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namespace MediaBrowser.Common.Extensions
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{
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/// <summary>
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/// Provides <c>CopyTo</c> extensions methods for <see cref="IReadOnlyList{T}" />.
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/// </summary>
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public static class CollectionExtensions
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{
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/// <summary>
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/// Copies all the elements of the current collection to the specified list
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/// starting at the specified destination array index. The index is specified as a 32-bit integer.
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/// </summary>
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/// <param name="source">The current collection that is the source of the elements.</param>
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/// <param name="destination">The list that is the destination of the elements copied from the current collection.</param>
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/// <param name="index">A 32-bit integer that represents the index in <c>destination</c> at which copying begins.</param>
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/// <typeparam name="T"></typeparam>
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public static void CopyTo<T>(this IReadOnlyList<T> source, IList<T> destination, int index = 0)
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{
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for (int i = 0; i < source.Count; i++)
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{
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destination[index + i] = source[i];
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}
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}
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}
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}
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@ -0,0 +1,57 @@
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using System;
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using System.Globalization;
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namespace MediaBrowser.Common
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{
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/// <summary>
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/// Encoding and decoding hex strings.
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/// </summary>
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public static class Hex
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{
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internal const string HexCharsLower = "0123456789abcdef";
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internal const string HexCharsUpper = "0123456789ABCDEF";
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/// <summary>
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/// Encodes <c>bytes</c> as a hex string.
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/// </summary>
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/// <param name="bytes"></param>
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/// <param name="lowercase"></param>
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/// <returns><c>bytes</c> as a hex string.</returns>
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public static string Encode(ReadOnlySpan<byte> bytes, bool lowercase = true)
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{
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var hexChars = lowercase ? HexCharsLower : HexCharsUpper;
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// TODO: use string.Create when it's supports spans
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// Ref: https://github.com/dotnet/corefx/issues/29120
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char[] s = new char[bytes.Length * 2];
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int j = 0;
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for (int i = 0; i < bytes.Length; i++)
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{
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s[j++] = hexChars[bytes[i] >> 4];
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s[j++] = hexChars[bytes[i] & 0x0f];
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}
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return new string(s);
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}
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/// <summary>
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/// Decodes a hex string into bytes.
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/// </summary>
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/// <param name="str">The <see cref="string" />.</param>
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/// <returns>The decoded bytes.</returns>
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public static byte[] Decode(ReadOnlySpan<char> str)
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{
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byte[] bytes = new byte[str.Length / 2];
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int j = 0;
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for (int i = 0; i < str.Length; i += 2)
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{
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bytes[j++] = byte.Parse(
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str.Slice(i, 2),
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NumberStyles.HexNumber,
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CultureInfo.InvariantCulture);
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}
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return bytes;
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}
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}
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}
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@ -1,24 +0,0 @@
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#pragma warning disable CS1591
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using System;
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using System.Globalization;
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namespace MediaBrowser.Common
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{
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public static class HexHelper
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{
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public static byte[] FromHexString(string str)
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{
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byte[] bytes = new byte[str.Length / 2];
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for (int i = 0; i < str.Length; i += 2)
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{
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bytes[i / 2] = byte.Parse(str.Substring(i, 2), NumberStyles.HexNumber, CultureInfo.InvariantCulture);
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}
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return bytes;
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}
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public static string ToHexString(byte[] bytes)
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=> BitConverter.ToString(bytes).Replace("-", "");
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}
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}
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@ -0,0 +1,16 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>netcoreapp3.0</TargetFramework>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="BenchmarkDotNet" Version="0.11.5" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="../../MediaBrowser.Common/MediaBrowser.Common.csproj" />
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</ItemGroup>
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</Project>
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@ -0,0 +1,19 @@
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using MediaBrowser.Common;
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using Xunit;
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namespace Jellyfin.Common.Tests
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{
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public class HexTests
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{
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[Theory]
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[InlineData("")]
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[InlineData("00")]
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[InlineData("01")]
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[InlineData("000102030405060708090a0b0c0d0e0f")]
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[InlineData("0123456789abcdef")]
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public void RoundTripTest(string data)
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{
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Assert.Equal(data, Hex.Encode(Hex.Decode(data)));
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}
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}
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}
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