/// <summary>
/// Registers NiawaTreeModelAdapter with the provider
/// </summary>
/// <param name="adapter"></param>
public static void RegisterNiawaTreeModelAdapter(NiawaIpcEventTreeModelAdapter adapter, string callerSessionID)
{
try
{
//_adapter = adapter;
//initialize adapter pool if null
if (_adapterPool == null) InitializeNiawaTreeModelAdapterPool();
//remove from pool if already exists
if (_adapterPool.ContainsAdapter(callerSessionID))
_adapterPool.RemoveAdapter(callerSessionID);
//add to pool
_adapterPool.AddAdapter(callerSessionID, adapter);
//remove inactive sessions
_adapterPool.RemoveInactiveAdapters();
//remove oldest sessions when there are too many
_adapterPool.RemoveOverflowAdapters();
}
catch (Exception ex)
{
Trace.TraceError("NiawaResourceProvider: Could not register Tree Model Adapter: " + ex.Message);
}
}
/// <summary>
/// Retrieves or creates a TreeModelAdapter for the specified caller
/// </summary>
/// <param name="callerSessionID"></param>
/// <returns></returns>
private NiawaIpcEventTreeModelAdapter RetrieveTreeModelAdapter(string callerSessionID)
{
//check if there is an existing Tree Model Adapter
NiawaIpcEventTreeModelAdapter treeModelAdapter = NiawaResourceProvider.RetrieveNiawaTreeModelAdapter(callerSessionID);
if (treeModelAdapter == null)
{
//get Tree Model Adapter Pool
NiawaIpcEventTreeModelAdapterPool pool = NiawaResourceProvider.RetrieveNiawaTreeModelAdapterPool();
//create tree model adapter
Trace.TraceInformation("NiawaSRHub [" + callerSessionID + "]: Creating Tree Model Adapter");
treeModelAdapter = new NiawaIpcEventTreeModelAdapter(this, pool, callerSessionID);
//start tree model adapter
Trace.TraceInformation("NiawaSRHub [" + callerSessionID + "]: Starting Tree Model Adapter");
treeModelAdapter.Start(true);
//register it with resource provider
Trace.TraceInformation("NiawaSRHub [" + callerSessionID + "]: Registering Tree Model Adapter with provider");
NiawaResourceProvider.RegisterNiawaTreeModelAdapter(treeModelAdapter, callerSessionID);
}
else
{
//use existing tree model adapter
Trace.TraceInformation("NiawaSRHub [" + callerSessionID + "]: Using existing Tree Model Adapter");
}
return treeModelAdapter;
}
