/// <summary>Add a group to cache, only netgroups are cached</summary>
/// <param name="groups">list of group names to add to cache</param>
/// <exception cref="System.IO.IOException"/>
public override void CacheGroupsAdd(IList <string> groups)
{
foreach (string group in groups)
{
if (group.Length == 0)
{
}
else
{
// better safe than sorry (should never happen)
if (group[0] == '@')
{
if (!NetgroupCache.IsCached(group))
{
NetgroupCache.Add(group, GetUsersForNetgroup(group));
}
}
}
}
}
