/// <summary>
/// Enqueue changes.
/// </summary>
/// <param name="entries">Changes to process.</param>
public void AddToQueue(List <SearchResultEntry> entries)
{
if ((entries != null) && entries.Any())
{
lock (mQueueLock)
{
// Add items to query
Queue.AddRange(entries);
// Sort query by uSNChanged and process users first
Queue.Sort((a, b) =>
{
if (LdapHelper.IsUser(a) ^ LdapHelper.IsUser(b))
{
return(LdapHelper.IsUser(a) ? -1 : 1);
}
return(LdapHelper.GetUsnChanged(a).CompareTo(LdapHelper.GetUsnChanged(b)));
});
// Start sending changes
if (DispatchAllowed && !DispatchRunning)
{
DispatchRunning = true;
Task.Factory.StartNew(SendChanges, TaskCreationOptions.LongRunning);
}
}
}
}
/// <summary>
/// Send changes to CMS one-by-one.
/// </summary>
private void SendChanges()
{
// Re-enumerate queue in each iteration
while (Queue.Any() && DispatchAllowed)
{
lock (mQueueLock)
{
try
{
if (Replica == null)
{
LoadDirecotryReplica();
}
// Process first entry
var entry = Queue.First();
if (entry == null)
{
// Remove all nulls
Queue.RemoveAll(e => e == null);
continue;
}
// Handle incoming change
if (LdapHelper.IsUser(entry))
{
HandleUser(entry);
}
else if (LdapHelper.IsGroup(entry))
{
HandleGroup(entry);
}
Queue.Remove(entry);
// Set actual uSNChanged attribute
long newUsn = LdapHelper.GetUsnChanged(entry);
if ((Replica != null) && (Replica.HighestUsnChanged < newUsn))
{
Replica.HighestUsnChanged = newUsn;
}
SaveDirecotryReplica();
}
catch (Exception ex)
{
LogError("Exception occurred when processing object.", ex);
}
}
}
DispatchRunning = false;
}