public Task PerformAction(DirectoryAction action)
{
var _hub = _hubs.GetOrAdd(action.Hub, _ => new ClusterNodeHubDirectory());
lock (_syncObject)
{
var operationSequence = this.Sequence;
if (_hub.PerformOperation(action))
{
var remoteOperation = new RemoteDirectoryOperation(_membershipProvider.GetOwnUniqueId(), Sequence, action);
this.Sequence = this.Sequence == Int32.MaxValue ? 0 : this.Sequence++;
_actionHistory.Add(action);
return(_clusterClient.BroadcastDirectoryOperation(new[] { remoteOperation }));
}
}
return(Task.CompletedTask);
}
public void PerformAction(RemoteDirectoryOperation operation)
{
var action = operation.Action;
var node = operation.Node;
if (action.Element == DirectoryElement.Connection)
{
if (action.Action == DirectoryElementAction.Add)
{
_connections.AddOrUpdate(action.Item, node, (_, __) => node);
}
else
{
_connections.TryRemove(action.Item, out _);
}
return;
}
if (action.Element == DirectoryElement.User)
{
var user = action.Item;
var hashSet = _users.GetOrAdd(user, ImmutableHashSet <string> .Empty);
if (action.Action == DirectoryElementAction.Add)
{
_users.AddOrUpdate(
user,
ImmutableHashSet <string> .Empty.Add(node),
(_, set) => set.Add(node)
);
}
else
{
if (_users.TryGetValue(user, out var set))
{
var newSet = set.Remove(node);
if (newSet == ImmutableHashSet <string> .Empty)
{
_users.TryRemove(user, out _);
}
else
{
_users.TryUpdate(user, set, newSet);
}
}
}
return;
}
if (action.Element == DirectoryElement.Group)
{
var group = action.Item;
var hashSet = _groups.GetOrAdd(group, ImmutableHashSet <string> .Empty);
if (action.Action == DirectoryElementAction.Add)
{
_users.AddOrUpdate(
group,
ImmutableHashSet <string> .Empty.Add(node),
(_, set) => set.Add(node)
);
}
else
{
if (_users.TryGetValue(group, out var set))
{
var newSet = set.Remove(node);
if (newSet == ImmutableHashSet <string> .Empty)
{
_users.TryRemove(group, out _);
}
else
{
_users.TryUpdate(group, set, newSet);
}
}
}
return;
}
}
