/// <summary>
/// Replace all values of 'attrName' with the empty string.
/// </summary>
/// <param name="propName">The name of the property / attribute to clear</param>
public void ClearAttr(string attrName)
{
CheckForDeletion();
attrName = attrName.ToLowerInvariant();
if (this.GetAttrValueCount(attrName) > 0)
{
DirectoryAttributeModification dam;
if (_changes.ContainsKey(attrName))
{
dam = _changes[attrName];
if (dam.Operation == DirectoryAttributeOperation.Replace)
{
if (dam.Count == 0)
{
logger.Debug("Already contains request to set {0} with Replace/Clear", attrName);
return;
}
}
if (this.ConflictMode == ConflictModes.Error)
{
throw new IncompatibleMutationException(String.Format(
"Change buffer already contains a non-blank request to modify attr {0} as {1}",
attrName, dam.Operation));
}
else
{
logger.Info("Overriding non-blank {0} request on attr {1} with Replace/Clear",
dam.Operation, attrName);
dam = new DirectoryAttributeModification()
{
Name = attrName, Operation = DirectoryAttributeOperation.Replace
};
dam.Clear();
_changes[attrName] = dam;
/*
* dam = new DirectoryAttributeModification() { Name = propName, Operation = DirectoryAttributeOperation.Delete };
* _changes[propName] = dam;
*/
if (_changes.ContainsKey(attrName + "*d"))
{
logger.Warn("Removing useless single-value deletion on attr {0}", attrName);
_changes.Remove(attrName + "*d");
}
}
}
else
{
dam = new DirectoryAttributeModification()
{
Name = attrName, Operation = DirectoryAttributeOperation.Replace
};
dam.Clear();
_changes[attrName] = dam;
logger.Debug("Set Replace/Clear on attr {0}", attrName);
if (_changes.ContainsKey(attrName + "*d"))
{
logger.Warn("Removing useless single-value deletion on attr {0}");
_changes.Remove(attrName + "*d");
}
}
}
}