@euirim/microsoft-cognitiveservices-speech-sdk
Version:
Microsoft Cognitive Services Speech SDK for JavaScript
181 lines (179 loc) • 9.93 kB
JavaScript
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
import { MessageType, } from "../common/Exports";
import { CancellationErrorCode, IntentRecognitionCanceledEventArgs, IntentRecognitionEventArgs, IntentRecognitionResult, PropertyCollection, PropertyId, ResultReason, } from "../sdk/Exports";
import { CancellationErrorCodePropertyName, EnumTranslation, IntentResponse, ServiceRecognizerBase, SimpleSpeechPhrase, SpeechHypothesis, } from "./Exports";
// tslint:disable-next-line:max-classes-per-file
export class IntentServiceRecognizer extends ServiceRecognizerBase {
constructor(authentication, connectionFactory, audioSource, recognizerConfig, recognizer) {
super(authentication, connectionFactory, audioSource, recognizerConfig, recognizer);
this.privIntentRecognizer = recognizer;
this.privIntentDataSent = false;
}
setIntents(addedIntents, umbrellaIntent) {
this.privAddedLmIntents = addedIntents;
this.privUmbrellaIntent = umbrellaIntent;
this.privIntentDataSent = true;
}
processTypeSpecificMessages(connectionMessage, successCallback, errorCallBack) {
let result;
let ev;
const resultProps = new PropertyCollection();
if (connectionMessage.messageType === MessageType.Text) {
resultProps.setProperty(PropertyId.SpeechServiceResponse_JsonResult, connectionMessage.textBody);
}
switch (connectionMessage.path.toLowerCase()) {
case "speech.hypothesis":
const speechHypothesis = SpeechHypothesis.fromJSON(connectionMessage.textBody);
result = new IntentRecognitionResult(undefined, this.privRequestSession.requestId, ResultReason.RecognizingIntent, speechHypothesis.Text, speechHypothesis.Duration, speechHypothesis.Offset + this.privRequestSession.currentTurnAudioOffset, undefined, connectionMessage.textBody, resultProps);
this.privRequestSession.onHypothesis(result.offset);
ev = new IntentRecognitionEventArgs(result, speechHypothesis.Offset + this.privRequestSession.currentTurnAudioOffset, this.privRequestSession.sessionId);
if (!!this.privIntentRecognizer.recognizing) {
try {
this.privIntentRecognizer.recognizing(this.privIntentRecognizer, ev);
/* tslint:disable:no-empty */
}
catch (error) {
// Not going to let errors in the event handler
// trip things up.
}
}
break;
case "speech.phrase":
const simple = SimpleSpeechPhrase.fromJSON(connectionMessage.textBody);
result = new IntentRecognitionResult(undefined, this.privRequestSession.requestId, EnumTranslation.implTranslateRecognitionResult(simple.RecognitionStatus), simple.DisplayText, simple.Duration, simple.Offset + this.privRequestSession.currentTurnAudioOffset, undefined, connectionMessage.textBody, resultProps);
ev = new IntentRecognitionEventArgs(result, result.offset, this.privRequestSession.sessionId);
const sendEvent = () => {
if (!!this.privIntentRecognizer.recognized) {
try {
this.privIntentRecognizer.recognized(this.privIntentRecognizer, ev);
/* tslint:disable:no-empty */
}
catch (error) {
// Not going to let errors in the event handler
// trip things up.
}
}
// report result to promise.
if (!!successCallback) {
try {
successCallback(result);
}
catch (e) {
if (!!errorCallBack) {
errorCallBack(e);
}
}
// Only invoke the call back once.
// and if it's successful don't invoke the
// error after that.
successCallback = undefined;
errorCallBack = undefined;
}
};
// If intent data was sent, the terminal result for this recognizer is an intent being found.
// If no intent data was sent, the terminal event is speech recognition being successful.
if (false === this.privIntentDataSent || ResultReason.NoMatch === ev.result.reason) {
// Advance the buffers.
this.privRequestSession.onPhraseRecognized(ev.offset + ev.result.duration);
sendEvent();
}
else {
// Squirrel away the args, when the response event arrives it will build upon them
// and then return
this.privPendingIntentArgs = ev;
}
break;
case "response":
// Response from LUIS
ev = this.privPendingIntentArgs;
this.privPendingIntentArgs = undefined;
if (undefined === ev) {
if ("" === connectionMessage.textBody) {
// This condition happens if there is nothing but silence in the
// audio sent to the service.
return;
}
// Odd... Not sure this can happen
ev = new IntentRecognitionEventArgs(new IntentRecognitionResult(), 0 /*TODO*/, this.privRequestSession.sessionId);
}
const intentResponse = IntentResponse.fromJSON(connectionMessage.textBody);
// If LUIS didn't return anything, send the existing event, else
// modify it to show the match.
// See if the intent found is in the list of intents asked for.
let addedIntent = this.privAddedLmIntents[intentResponse.topScoringIntent.intent];
if (this.privUmbrellaIntent !== undefined) {
addedIntent = this.privUmbrellaIntent;
}
if (null !== intentResponse && addedIntent !== undefined) {
const intentId = addedIntent.intentName === undefined ? intentResponse.topScoringIntent.intent : addedIntent.intentName;
let reason = ev.result.reason;
if (undefined !== intentId) {
reason = ResultReason.RecognizedIntent;
}
// make sure, properties is set.
const properties = (undefined !== ev.result.properties) ?
ev.result.properties : new PropertyCollection();
properties.setProperty(PropertyId.LanguageUnderstandingServiceResponse_JsonResult, connectionMessage.textBody);
ev = new IntentRecognitionEventArgs(new IntentRecognitionResult(intentId, ev.result.resultId, reason, ev.result.text, ev.result.duration, ev.result.offset, ev.result.errorDetails, ev.result.json, properties), ev.offset, ev.sessionId);
}
this.privRequestSession.onPhraseRecognized(ev.offset + ev.result.duration);
if (!!this.privIntentRecognizer.recognized) {
try {
this.privIntentRecognizer.recognized(this.privIntentRecognizer, ev);
/* tslint:disable:no-empty */
}
catch (error) {
// Not going to let errors in the event handler
// trip things up.
}
}
// report result to promise.
if (!!successCallback) {
try {
successCallback(ev.result);
}
catch (e) {
if (!!errorCallBack) {
errorCallBack(e);
}
}
// Only invoke the call back once.
// and if it's successful don't invoke the
// error after that.
successCallback = undefined;
errorCallBack = undefined;
}
break;
default:
break;
}
}
// Cancels recognition.
cancelRecognition(sessionId, requestId, cancellationReason, errorCode, error, cancelRecoCallback) {
const properties = new PropertyCollection();
properties.setProperty(CancellationErrorCodePropertyName, CancellationErrorCode[errorCode]);
if (!!this.privIntentRecognizer.canceled) {
const cancelEvent = new IntentRecognitionCanceledEventArgs(cancellationReason, error, errorCode, undefined, undefined, sessionId);
try {
this.privIntentRecognizer.canceled(this.privIntentRecognizer, cancelEvent);
/* tslint:disable:no-empty */
}
catch (_a) { }
}
if (!!cancelRecoCallback) {
const result = new IntentRecognitionResult(undefined, // Intent Id
requestId, ResultReason.Canceled, undefined, // Text
undefined, // Druation
undefined, // Offset
error, undefined, // Json
properties);
try {
cancelRecoCallback(result);
/* tslint:disable:no-empty */
}
catch (_b) { }
}
}
}
//# sourceMappingURL=IntentServiceRecognizer.js.map