private void pushAnswerToTop(Answer topAnswer, List<Answer> answers) {
// See if the top answer is already in the answer list. If it is, remove it
Iterator<Answer> iter = answers.iterator();
while (iter.hasNext()) {
if (iter.next().getClassName().equals(topAnswer.getClassName())) {
iter.remove();
}
}
// Set this top answer as HIGH with 100% confidence
topAnswer.setConfidence(1.00);
topAnswer.setConfidenceCategory(ConfidenceCategoryEnum.HIGH);
// Add this answer to the top
answers.add(0, topAnswer);
}
@Override
public Response askQuestion(String conversationId, MessageRequest message)
throws NotFoundException {
logger.entry(message.getMessage());
if (message.getReferrer() != null) {
if (message.getReferrer().getSource() == SourceEnum.REFINEMENT
&& message.getReferrer().getMessageId() == null) {
return getBadRequestResponse(
"messageId required when referrer source is " + SourceEnum.REFINEMENT);
}
if (message.getReferrer().getSource() == null) {
return getBadRequestResponse("referrer source required when referrer is set");
}
}
if (message.getMessage().length() > MAX_QUESTION_LENGTH) {
return getBadRequestResponse(
MessageKey.AQWQAC14004E_question_too_long_1.getMessage(message.getMessage())
.getFormattedMessage());
}
if (service == null) {
return error(MessageKey.AQWQAC14001E_error_selection_correct_classifier.getMessage());
}
List<NLClassifier> classifiers = service.getClassifiers();
if (classifiers.isEmpty()) {
return error(MessageKey.AQWQAC14002E_no_classifier_instances.getMessage());
}
NLClassifier classifier = null;
for (NLClassifier potentialClassifier : classifiers) {
if (potentialClassifier.getStatus().equals(Status.AVAILABLE)) {
classifier = potentialClassifier;
break;
}
}
if (classifier == null) {
return error(MessageKey.AQWQAC14003E_no_available_classifiers.getMessage());
}
NLClassiferClassifyResponse classifyResponse = classifier.classify(message.getMessage());
List<Answer> answers = new ArrayList<Answer>();
for (NLClassifiedClass classifiedClass : classifyResponse.getClasses()) {
try {
answers.add(resolver.resolve(classifiedClass));
} catch (ResolutionException e) {
logger.warn(MessageKey.AQWQAC12100W_could_not_resolve_answer_1.getMessage(e.getMessage()));
}
}
List<Answer> previousAnswers = responseCache.get(conversationId);
responseCache.put(conversationId, answers);
// If there was no referrer, or if it's a top question, cache this response
if (message.getReferrer() != null) {
Answer knownAnswer = null;
// This is either a refinement question (did you mean) or a top question, so force the correct
// answer to the top
if (message.getReferrer().getSource() == SourceEnum.TOP_QUESTION) {
try {
knownAnswer = topQuestionsStore.getAnswer(message.getMessage());
} catch (QuestionNotFoundException | ResolutionException e) {
logger.warn(MessageKey.AQWQAC12003W_question_not_in_top_question_store.getMessage(), e);
}
}
if (message.getReferrer().getSource() == SourceEnum.REFINEMENT) {
if (previousAnswers.size() > 0) {
// Find the refinement question in our previously cached list
for (Answer previousAnswer : previousAnswers) {
if (previousAnswer.getCanonicalQuestion().equals(message.getMessage())) {
knownAnswer = previousAnswer;
break;
}
}
}
if (knownAnswer == null) {
logger.warn(
MessageKey.AQWQAC12004W_question_not_in_response_cache_1.getMessage(
message.getMessage()));
}
}
if (knownAnswer != null) {
pushAnswerToTop(knownAnswer, answers);
}
}
if (answers.size() > 0) {
answers = categorizer.categorize(answers);
}
String previousMessageId = null;
if (message.getReferrer() != null) {
// This is a refinement/suggestion to a high confidence incorrect or low confidence answer.
// Keep track of the question/response that got us here.
previousMessageId = message.getReferrer().getMessageId();
}
InputMode mode = message.getReferrer() == null ? InputMode.TYPED : InputMode.CLICKED;
String messageId =
tracking.questionAsked(
conversationId, previousMessageId, message.getMessage(), mode, answers);
return getOkResponse(new MessageResponse(messageId, message.getMessage(), answers));
}