Exemplo n.º 1
0
 private static void SwapByteOrder(byte[] guid)
 {
     DeterministicGuidGenerator.SwapBytes(guid, 0, 3);
     DeterministicGuidGenerator.SwapBytes(guid, 1, 2);
     DeterministicGuidGenerator.SwapBytes(guid, 4, 5);
     DeterministicGuidGenerator.SwapBytes(guid, 6, 7);
 }
Exemplo n.º 2
0
 /// <summary>Creates a deterministic GUID.</summary>
 /// <param name="source">A source to generate the GUID from.</param>
 /// <returns>A deterministically generated GUID.</returns>
 public Guid Create(byte[] source)
 {
     byte[] hash;
     using (SHA1 shA1 = SHA1.Create())
     {
         shA1.TransformBlock(this._namespaceBytes, 0, this._namespaceBytes.Length, (byte[])null, 0);
         shA1.TransformFinalBlock(source, 0, source.Length);
         hash = shA1.Hash;
     }
     byte[] numArray = new byte[16];
     Array.Copy((Array)hash, 0, (Array)numArray, 0, 16);
     numArray[6] = (byte)((int)numArray[6] & 15 | 80);
     numArray[8] = (byte)((int)numArray[8] & 63 | 128);
     DeterministicGuidGenerator.SwapByteOrder(numArray);
     return(new Guid(numArray));
 }
Exemplo n.º 3
0
 /// <summary>
 ///     Initializes a new instance of <see cref="T:SqlStreamStore.Infrastructure.DeterministicGuidGenerator" />
 /// </summary>
 /// <param name="guidNameSpace">
 ///     A namespace that ensures that the GUID generated with this instance
 ///     do not collided with other generators. Your application should define
 ///     it's namespace as a constant.
 /// </param>
 public DeterministicGuidGenerator(Guid guidNameSpace)
 {
     this._namespaceBytes = guidNameSpace.ToByteArray();
     DeterministicGuidGenerator.SwapByteOrder(this._namespaceBytes);
 }