void ClearState()
{
ErrorMessage = "";
DiagramItems.Clear();
HeaderItems.Clear();
NotifyOfPropertyChange(nameof(HasItems));
}
public void Handle(ScrollDiagramItemIntoView @event)
{
var diagramItem = DiagramItems.OfType <Arrow>()
.FirstOrDefault(a => a.SelectedMessage.Id == @event.Message.Id);
if (diagramItem != null)
{
view?.diagram.BringIntoView(diagramItem);
}
}
void RefreshSelection()
{
foreach (var item in DiagramItems.OfType <Handler>())
{
item.IsFocused = false;
}
foreach (var item in DiagramItems.OfType <Arrow>())
{
if (string.Equals(item.SelectedMessage.Id, Selection.SelectedMessage.Id, StringComparison.InvariantCultureIgnoreCase))
{
item.IsFocused = true;
continue;
}
item.IsFocused = false;
}
}
void CreateElements(List <StoredMessage> messages)
{
var modelCreator = new ModelCreator(messages, this);
var endpoints = modelCreator.Endpoints;
var handlers = modelCreator.Handlers;
var routes = modelCreator.Routes;
ClearState();
DiagramItems.AddRange(endpoints);
DiagramItems.AddRange(endpoints.Select(e => e.Timeline));
DiagramItems.AddRange(handlers);
DiagramItems.AddRange(handlers.SelectMany(h => h.Out));
DiagramItems.AddRange(routes);
HeaderItems.AddRange(endpoints);
NotifyOfPropertyChange(nameof(HasItems));
}
public async Task Handle(SelectedMessageChanged message)
{
try
{
var conversationId = Selection?.SelectedMessage?.ConversationId;
if (string.IsNullOrEmpty(conversationId))
{
ClearState();
return;
}
if (loadedConversationId == conversationId && DiagramItems.Any()) //If we've already displayed this diagram
{
RefreshSelection();
return;
}
var messages = (await serviceControl.GetConversationById(conversationId)).ToList();
if (messages.Count == 0)
{
LogTo.Warning("No messages found for conversation id {0}", conversationId);
ClearState();
return;
}
CreateElements(messages);
loadedConversationId = conversationId;
RefreshSelection();
}
catch (Exception ex)
{
ClearState();
ErrorMessage = $"There was an error processing the message data.";
ReportPackage = new ReportMessageCommand.ReportMessagePackage(ex, Selection?.SelectedMessage);
}
}
