/// <summary>
/// Refreshes list of running clients.
/// </summary>
public void Refresh()
{
lock (lockthis)
{
Debug.WriteLine("Refreshing clients...");
Hashtable rot = ROT.GetROT(); //Read all objects of type C/SIDE from ROT
Hashtable newClients = new Hashtable();
foreach (object obj in rot.Keys)
{
//ClientID clientID=new ClientID(rot.ObjectList[obj]);
//newClients.Add(clientID, AddClient(clientID, rot.ObjectList[obj]));
NAVClient client = null;
try {
client = new NAVClient(rot[obj]);
if (!objects.ContainsKey(client.Hwnd))
{
objects[client.Hwnd] = client;
//client.WatchObjChanges();
clients.Add(client);
newClients[client.Hwnd] = client;
Debug.WriteLine("Adding:" + client.Hwnd.ToString() + " " + client.MyId + " " + client.InstanceName);
}
else
{
newClients[client.Hwnd] = objects[client.Hwnd];
client.Dispose();
}
} catch (Exception)
{
if (client != null)
{
client.Dispose();
}
}
}
/// Remove deleted objects
List <object> clientToDelete = new List <object>();
foreach (object clientID in objects.Keys)
{
if (!newClients.ContainsKey(clientID))
{
clientToDelete.Add(clientID);
}
}
foreach (object clientID in clientToDelete)
{
RemoveClient((NAVClient)objects[clientID]);
}
}
}
/// <summary>
/// Adds the clients into collection if not already there.
/// </summary>
/// <param name="objName">The NAV client obj. from ROT</param>
/// <returns>New or existing NAVClient object representing given obj</returns>
private NAVClient AddClient(object clientID, object clientObj)
{
/*
* foreach (object obj in objects.Keys)
* {
* if (((NAVClient)objects[obj]).RotObject.Equals(clientObj))
* {
* return (NAVClient)objects[obj];
* }
* }
* */
NAVClient client = null;
try
{
client = new NAVClient(clientObj, clientID);
if (objects.ContainsKey(clientID))
{
client.Dispose();
return((NAVClient)objects[clientID]);
}
objects.Add(clientID, client);
clients.Add(client);
Debug.WriteLine("Adding:" + clientID + " " + client.MyId);
return(client);
}
catch (Exception)
{
if (client != null)
{
client.Dispose();
}
return(null);
}
}
/// <summary>
/// Removes the client.
/// </summary>
/// <param name="client">The client.</param>
public void RemoveClient(NAVClient client)
{
Debug.WriteLine("Removing:" + client.Hwnd);
if (lastActiveClient == client)
{
lastActiveClient = null;
}
clients.Remove(client);
if (objects[client.Hwnd] != null)
{
Marshal.ReleaseComObject(client.RotObject);
}
objects.Remove(client.Hwnd);
client.Dispose();
}