/// <summary>
/// Update node view to display and/or cache the IpcEvent
/// </summary>
/// <param name="evt"></param>
private void UpdateNodeView(ITreeModelEvent evt)
{
try
{
_treeModel.AcquireLock("UpdateNodeView");
//pass update to the view
if (_treeModel.DoesNodeExist(evt.NodeID))
{
_treeModel.GetNode(evt.NodeID).NodeView.UpdateView(evt);
}
else
throw new InvalidOperationException("Error updating node view: NodeID " + evt.NodeID + " does not exist");
}
catch (Exception ex)
{
throw new InvalidOperationException("Failed to Update Node View: " + ex.Message);
}
finally
{
_treeModel.ReleaseLock();
}
}
/// <summary>
/// Add event to event queue
/// </summary>
/// <param name="evt"></param>
public void AddEventToQueue(ITreeModelEvent evt)
{
_eventQueue.Enqueue(evt);
}
/// <summary>
/// Refresh tree model with any changes present in the IpcEvent
/// </summary>
/// <param name="evt"></param>
private void RefreshTreeModel(ITreeModelEvent evt)
{
try
{
_treeModel.AcquireLock("RefreshTreeModel");
//check if node exists
if (_treeModel.DoesNodeExist(evt.NodeID))
{
// check if node text has changed
if (_treeModel.HasNodeTextChanged(evt.NodeID, evt.NodeText))
{
TreeModelNode node = _treeModel.GetNode(evt.NodeID);
logger.Info("Node [" + evt.NodeID + "] [" + node.NodeText + "] text changed to: " + evt.NodeText);
//update text
_treeModel.UpdateNodeText(evt.NodeID, evt.NodeText);
}
}
else
{
//adding new node
logger.Info("Adding node [" + evt.NodeID + "]: " + evt.NodeText);
//create a new node view
ITreeModelNodeView nodeView = _nodeViewFactory.CreateNodeView(_callerSessionID);
bool isRoot = false;
if (evt.ParentNodeID.Trim().Length == 0)
isRoot = true;
else
isRoot = false;
if (evt.NodeID.Trim().Length == 0)
throw new InvalidOperationException("Failed to add node ID [" + evt.NodeID + "] text [" + evt.NodeText + "]: NodeID is a required field to create a tree model node.");
//create a new node
TreeModelNode node = new TreeModelNode(evt.NodeID, evt.NodeText, evt.ParentNodeID, isRoot, nodeView, _treeModel);
//add
_treeModel.AddNode(node);
}
}
catch (Exception ex)
{
throw new InvalidOperationException("Failed to Refresh Tree Model: " + ex.Message);
}
finally
{
_treeModel.ReleaseLock();
}
}
