/// <summary>
/// Create recognizer from qnaJson
/// </summary>
/// <param name="json"></param>
public QLuceneRecognizer(string knowledgebase, string json)
{
if (json != null)
{
this.KnowledgeBase = knowledgebase;
QLuceneEngineCache.GetEngine(this.KnowledgeBase, json);
}
}
/// <summary>
/// Create QLuceneRecognizer from prebuild FSDirectory
/// </summary>
/// <param name="dirInfo"></param>
public QLuceneRecognizer(string knowledgeBase, DirectoryInfo dirInfo)
{
this.KnowledgeBase = knowledgeBase;
QLuceneEngineCache.GetEngine(this.KnowledgeBase, () => FSDirectory.Open(dirInfo));
}
public async override Task <RecognizerResult> RecognizeAsync(DialogContext dialogContext, Activity activity, CancellationToken cancellationToken = default, Dictionary <System.String, System.String> telemetryProperties = null, Dictionary <System.String, System.Double> telemetryMetrics = null)
{
var qluceneEngine = await QLuceneEngineCache.GetEngine(dialogContext, this.KnowledgeBase).ConfigureAwait(false);
var threshold = Threshold.GetValue(dialogContext);
var recognizerResult = new RecognizerResult
{
Text = activity.Text,
Intents = new Dictionary <string, IntentScore>(),
};
if (string.IsNullOrEmpty(activity.Text))
{
recognizerResult.Intents.Add("None", new IntentScore());
return(recognizerResult);
}
var rankerType = RankerType?.GetValue(dialogContext.State);
var strictFiltersCompoundOperationType = StrictFiltersCompoundOperationType?.GetValue(dialogContext.State);
var strictFilters = new List <Metadata>();
var context = Context?.GetValue(dialogContext.State);
bool includeDialogNameInMetadata = IncludeDialogNameInMetadata.GetValue(dialogContext.State);
if (includeDialogNameInMetadata)
{
strictFilters.Add(new Metadata
{
Name = "dialogName",
Value = dialogContext.ActiveDialog.Id
});
}
// if there is $qna.metadata set add to filters
var externalMetadata = StrictFilters?.GetValue(dialogContext.State);
if (externalMetadata != null)
{
strictFilters.AddRange(externalMetadata);
}
var topAnswer = qluceneEngine.GetAnswers(activity.Text,
strictFilters: strictFilters.ToArray(),
context: context,
threshold: threshold,
rankerType: rankerType,
strictFiltersCompoundOperationType: strictFiltersCompoundOperationType);
if (topAnswer != null)
{
if (topAnswer.Answer.Trim().ToUpperInvariant().StartsWith(IntentPrefix.ToUpperInvariant(), StringComparison.Ordinal))
{
recognizerResult.Intents.Add(topAnswer.Answer.Trim().Substring(IntentPrefix.Length).Trim(), new IntentScore {
Score = topAnswer.Score
});
}
else
{
recognizerResult.Intents.Add(QnAMatchIntent, new IntentScore {
Score = topAnswer.Score
});
}
var answerArray = new JArray();
answerArray.Add(topAnswer.Answer);
ObjectPath.SetPathValue(recognizerResult, "entities.answer", answerArray);
var instance = new JArray();
var data = JObject.FromObject(topAnswer);
data["startIndex"] = 0;
data["endIndex"] = activity.Text.Length;
instance.Add(data);
ObjectPath.SetPathValue(recognizerResult, "entities.$instance.answer", instance);
// recognizerResult.Properties["answers"] = answers;
}
else
{
recognizerResult.Intents.Add("None", new IntentScore {
Score = 1.0f
});
}
var traceInfo = new
{
recognizerResult,
options = new
{
id = this.Id,
knowledgeBase = this.KnowledgeBase,
scoreThreshold = threshold,
context,
rankerType,
strictFilters = strictFilters.ToArray(),
includeDialogNameInMetadata,
strictFiltersCompoundOperationType
}
};
await dialogContext.Context.TraceActivityAsync(nameof(QLuceneRecognizer), traceInfo, TraceType, TraceLabel, cancellationToken).ConfigureAwait(false);
return(recognizerResult);
}