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路 范
2022-03-30 17:54:33 +08:00
parent df01841625
commit 904bdd16cd
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20220330_Vote/Ewide.RoadFlow/Utility/GuidExtensions.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
namespace RoadFlow.Utility
{
public static class GuidExtensions
{
/// <summary>
/// 生成新的GUID（有的需要生成连续的Guid,所以统一调用这里的方法）
/// </summary>
/// <returns></returns>
public static Guid NewGuid()
{
return Guid.NewGuid();
}
/// <summary>
/// 判断为空GUID
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static bool IsEmptyGuid(this Guid guid)
{
return guid == Guid.Empty;
}
/// <summary>
/// 判断为空GUID
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static bool IsEmptyGuid(this Guid? guid)
{
return !guid.HasValue || guid.Value == Guid.Empty;
}
/// <summary>
/// 判断不为空GUID
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static bool IsNotEmptyGuid(this string guid)
{
if (guid.IsNullOrWhiteSpace())
return false;
return guid.ToGuid().IsNotEmptyGuid();
}
/// <summary>
/// 判断不为空GUID
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static bool IsNotEmptyGuid(this Guid guid)
{
return guid != Guid.Empty;
}
/// <summary>
/// 判断不为NULL和空GUID
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static bool IsNotEmptyGuid(this Guid? guid)
{
return guid.HasValue && guid.Value != Guid.Empty;
}
/// <summary>
/// 将GUID转换为整数
/// </summary>
/// <param name="guid"></param>
/// <returns>HashCode整数</returns>
public static int ToInt(this Guid guid)
{
return Math.Abs(guid.GetHashCode());
//byte[] buffer = guid.ToByteArray();
//return BitConverter.ToInt32(buffer, 0);
}
/// <summary>
/// 转换GUID为大写字符串
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static string ToUpperString(this Guid guid)
{
return guid.ToString().ToUpper();
}
/// <summary>
/// 转换guid为小写字符串
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static string ToLowerString(this Guid guid)
{
return guid.ToString().ToLower();
}
/// <summary>
/// 没有分隔线的字符串
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static string ToNString(this Guid guid)
{
return guid.ToString();
}
/// <summary>
/// 没有分隔线的小写字符串
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static string ToLowerNString(this Guid guid)
{
return guid.ToString().ToLower();
}
/// <summary>
/// 没有分隔线的大写字符串
/// </summary>
/// <param name="guid"></param>
/// <returns></returns>
public static string ToUpperNString(this Guid guid)
{
return guid.ToString().ToUpper();
}
/// <summary>
/// 将int转换为GUID
/// </summary>
/// <param name="i">111</param>
/// <returns>00000000-0000-0000-0000-000000000111</returns>
public static Guid ToGuid(this int i)
{
return i.ToString().PadLeft(32, '0').ToGuid();
}
/// <summary>
/// 将long转换为GUID
/// </summary>
/// <param name="i">111</param>
/// <returns>00000000-0000-0000-0000-000000000111</returns>
public static Guid ToGuid(this long i)
{
return i.ToString().PadLeft(32, '0').ToGuid();
}
/// <summary>
/// 将GUID转换为int
/// </summary>
/// <param name="guid">00000000-0000-0000-0000-000000000111 的GUID</param>
/// <returns>111</returns>
public static int ToInteger(this Guid guid)
{
return guid.ToNString().TrimStart('0').ToInt();
}
/// <summary>
/// 将GUID转换为long
/// </summary>
/// <param name="guid">00000000-0000-0000-0000-000000000111 的GUID</param>
/// <returns>111</returns>
public static long ToLong(this Guid guid)
{
return guid.ToNString().TrimStart('0').ToLong();
}
#region 生成顺序GUID
//private static readonly RandomNumberGenerator Rng = RandomNumberGenerator.Create();
///// <summary>
///// 创建顺序GUID
///// </summary>
///// <returns></returns>
//public static Guid NewSequentialGuid()
//{
// SequentialGuidType sequentialGuidType;
// switch (Config.DatabaseType)
// {
// case "sqlserver":
// sequentialGuidType = SequentialGuidType.SequentialAtEnd;
// break;
// case "oracle":
// sequentialGuidType = SequentialGuidType.SequentialAsBinary;
// break;
// case "mySql":
// sequentialGuidType = SequentialGuidType.SequentialAsString;
// break;
// default:
// sequentialGuidType = SequentialGuidType.SequentialAsString;
// break;
// }
// var randomBytes = new byte[10];
// Rng.Locking(r => r.GetBytes(randomBytes));
// long timestamp = DateTime.UtcNow.Ticks / 10000L;
// byte[] timestampBytes = BitConverter.GetBytes(timestamp);
// if (BitConverter.IsLittleEndian)
// {
// Array.Reverse(timestampBytes);
// }
// byte[] guidBytes = new byte[16];
// switch (sequentialGuidType)
// {
// case SequentialGuidType.SequentialAsString:
// case SequentialGuidType.SequentialAsBinary:
// Buffer.BlockCopy(timestampBytes, 2, guidBytes, 0, 6);
// Buffer.BlockCopy(randomBytes, 0, guidBytes, 6, 10);
// if (sequentialGuidType == SequentialGuidType.SequentialAsString && BitConverter.IsLittleEndian)
// {
// Array.Reverse(guidBytes, 0, 4);
// Array.Reverse(guidBytes, 4, 2);
// }
// break;
// case SequentialGuidType.SequentialAtEnd:
// Buffer.BlockCopy(randomBytes, 0, guidBytes, 0, 10);
// Buffer.BlockCopy(timestampBytes, 2, guidBytes, 10, 6);
// break;
// }
// return new Guid(guidBytes);
//}
//private enum SequentialGuidType
//{
// /// <summary>
// /// The GUID should be sequential when formatted using the
// /// <see cref="Guid.ToString()" /> method.
// /// </summary>
// SequentialAsString,
// /// <summary>
// /// The GUID should be sequential when formatted using the
// /// <see cref="Guid.ToByteArray" /> method.
// /// </summary>
// SequentialAsBinary,
// /// <summary>
// /// The sequential portion of the GUID should be located at the end
// /// of the Data4 block.
// /// </summary>
// SequentialAtEnd
//}
#endregion
}
}