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Minor code cleanup

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This commit is contained in:
MichaelGrafnetter 2016-01-02 16:30:17 +01:00
parent 421a33e102
commit 2251526bfa
3 changed files with 26 additions and 17 deletions
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5
Src/DSInternals.Common/Cryptography/Crc32.cs
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@ -1,6 +1,9 @@

namespace DSInternals.Common.Cryptography
{
/// <summary>
/// Implements the CRC32 algorithm, as used by AD replication.
/// </summary>
public static class Crc32
{
private static readonly uint[] crcTable = new uint[] {
@ -76,7 +79,7 @@ namespace DSInternals.Common.Cryptography
uint crc = uint.MaxValue;
for(int i = 0; i < buffer.Length; i++)
{
crc = crcTable[(crc ^ buffer[i]) & 0xFF] ^ (crc >> 8);
crc = crcTable[(crc ^ buffer[i]) & byte.MaxValue] ^ (crc >> 8 );
}
return crc ^ uint.MaxValue;
}

1
Src/DSInternals.Common/Data/Schema/CommonDirectoryAttributes.cs
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@ -59,6 +59,7 @@
public const string OrganizationalUnitName = "ou";
public const string ParentDNTag = "PDNT";
public const string PEKList = "pekList";
public const string PEKChangeInterval = "pekKeyChangeInterval";
public const string PrimaryGroupId = "primaryGroupID";
public const int PrimaryGroupIdId = 589922;
public const string PropertyMetaData = "replPropertyMetaData";

37
Src/DSInternals.DataStore/LinkResolver.cs
View File

@ -12,6 +12,10 @@ namespace DSInternals.DataStore
private const string linkDNCol = "link_DNT";
private const string backlinkDNCol = "backlink_DNT";
private const string linkBaseCol = "link_base";
private const string linkDataCol = "link_data";
private const string linkMetadataCol = "link_metadata";
private const string linkDeletedTimeCol = "link_deltime";
private const string linkDeactivatedTimeCol = "link_deactivetime";
private const string linkIndex = "link_present_active_index";
private Cursor cursor;
@ -27,29 +31,25 @@ namespace DSInternals.DataStore
public int? GetLinkedDNTag(int dnTag, string attributeName)
{
int[] result = this.GetLinkedDNTags(dnTag, attributeName);
switch(result.Length)
try
{
case 0:
return null;
case 1:
return result[0];
default:
// TODO: Make this a special exception type. Move message to resources.
throw new Exception("More than 1 objects have been found.");
return this.GetLinkedDNTags(dnTag, attributeName).SingleOrDefault();
}
catch(InvalidOperationException)
{
// TODO: Make this a special exception type. Move message to resources.
throw new Exception("More than 1 objects have been found.");
}
}
public int[] GetLinkedDNTags(int dnTag, string attributeName)
public IEnumerable<int> GetLinkedDNTags(int dnTag, string attributeName)
{
var result = new List<int>();
SchemaAttribute attr = this.schema.FindAttribute(attributeName);
if(!attr.LinkId.HasValue)
{
// This is not a linked multivalue attribute.
//TODO: Throw a proper exception
throw new Exception();
// TODO: Check that attribute type is DN
throw new Exception("This is not a linked multivalue attribute.");
}
int linkId = attr.LinkId.Value;
// Remove the rightmost bit that indicates if this is a forward link or a backlink.
@ -62,9 +62,14 @@ namespace DSInternals.DataStore
{
// TODO: Not deactivated?
int foundTag = (int)cursor.IndexRecord[backlinkDNCol];
result.Add(foundTag);
yield return foundTag;
}
return result.ToArray();
}
public IEnumerable<byte[]> GetDNBinaryValues(int dnTag, string attributeName)
{
// TODO: Implement DN-Binary attribute value retrieval from linktable.
throw new NotImplementedException();
}
public void Dispose()