protected virtual async Task MessageReceived(IDialogContext context, IAwaitable <IMessageActivity> item)
{
if (this.handlerByIntent == null)
{
this.handlerByIntent = new Dictionary <string, IntentActivityHandler>(GetHandlersByIntent());
}
var message = await item;
var messageText = await GetLuisQueryTextAsync(context, message);
// TODO: obtain CancellationToken from IPostToBot.PostAsync
var tasks = this.services.Select(s => s.QueryAsync(messageText, CancellationToken.None)).ToArray();
var winner = this.BestResultFrom(await Task.WhenAll(tasks));
IntentActivityHandler handler = null;
if (winner == null || !this.handlerByIntent.TryGetValue(winner.BestIntent.Intent, out handler))
{
handler = this.handlerByIntent[string.Empty];
}
if (handler != null)
{
await handler(context, item, winner?.Result);
}
else
{
var text = $"No default intent handler found.";
throw new Exception(text);
}
}
protected virtual async Task DispatchToIntentHandler(IDialogContext context,
IAwaitable <IMessageActivity> item,
IntentRecommendation bestIntent,
LuisResult result)
{
if (this.handlerByIntent == null)
{
this.handlerByIntent = new Dictionary <string, IntentActivityHandler>(GetHandlersByIntent());
}
IntentActivityHandler handler = null;
if (result == null || !this.handlerByIntent.TryGetValue(bestIntent.Intent, out handler))
{
handler = this.handlerByIntent[string.Empty];
}
if (handler != null)
{
await handler(context, item, result);
}
else
{
var text = $"No default intent handler found.";
throw new Exception(text);
}
}
