public override async Task <RecognizerResult> RecognizeAsync(DialogContext dialogContext, Activity activity, CancellationToken cancellationToken = default, Dictionary <string, string> telemetryProperties = null, Dictionary <string, double> telemetryMetrics = null)
{
if (this._engine == null)
{
if (this.Model == null)
{
var resourceExplorer = dialogContext.Context.TurnState.Get <ResourceExplorer>() ?? throw new ArgumentException("No resource Explorer was found in dialog context");
resourceExplorer.AddResourceType("yaml");
var modelId = ResourceId.GetValue(dialogContext.State);
var modelResource = resourceExplorer.GetResource(modelId) ?? throw new ArgumentException($"{modelId} not found");
var yamlOrJson = await modelResource.ReadTextAsync();
this._engine = new LucyEngine(yamlOrJson);
}
else
{
this._engine = new LucyEngine(this.Model);
}
}
List <LucyEntity> externalEntities = new List <LucyEntity>();
if (ExternalEntityRecognizer != null)
{
var results = await ExternalEntityRecognizer.RecognizeAsync(dialogContext, activity, cancellationToken, telemetryProperties, telemetryMetrics).ConfigureAwait(false);
externalEntities = GetEntitiesFromObject(activity, results.Entities).ToList();
}
var recognizerResult = new RecognizerResult();
var lucyEntities = _engine.MatchEntities(activity.Text ?? string.Empty, externalEntities);
recognizerResult.Entities = GetRecognizerEntities(lucyEntities);
var intents = this.Intents.GetValue(dialogContext.State) ?? new List <string>();
if (intents.Any())
{
foreach (var lucyEntity in lucyEntities.Where(entity => intents.Contains(entity.Type)))
{
recognizerResult.Intents.Add(lucyEntity.Type, new IntentScore()
{
Score = lucyEntity.Score
});
}
}
else if (recognizerResult.Entities.Count > externalEntities.Count + 1)
{
recognizerResult.Intents.Add(MatchedIntent, new IntentScore()
{
Score = lucyEntities.Max(e => e.Score)
});
}
if (!recognizerResult.Intents.Any())
{
recognizerResult.Intents.Add(NoneIntent, new IntentScore {
Score = 1.0f
});
}
await dialogContext.Context.TraceActivityAsync(nameof(LucyRecognizer), JObject.FromObject(recognizerResult), "RecognizerResult", "Lucy RecognizerResult", cancellationToken).ConfigureAwait(false);
this.TrackRecognizerResult(dialogContext, "LucyRecognizerResult", this.FillRecognizerResultTelemetryProperties(recognizerResult, telemetryProperties), telemetryMetrics);
return(recognizerResult);
}