/// <summary>
/// Extracts data from a transcription.
/// </summary>
/// <param name="transcript">The transcript to extract data from.</param>
/// <param name="log">Trace logging instance.</param>
/// <returns>A Task returning the data extracted from the transcription.</returns>
public Task <TranscriptionData> ExtractAsync(string transcript, ILogger log)
{
return(Task.Run(() =>
{
TranscriptionData data = new TranscriptionData();
data.Transcription = transcript;
data.Dates = ExtractDateTimes(transcript, log);
data.Location = ExtractLocation(transcript, log);
data.Person = ExtractPerson(transcript, log);
return data;
}));
}
/// <summary>
/// Extracts data from a transcription.
/// </summary>
/// <param name="transcript">The transcript to extract data from.</param>
/// <param name="log">Trace logging instance.</param>
/// <returns>A Task returning the data extracted from the transcription.</returns>
public async Task<TranscriptionData> ExtractAsync(string transcript, ILogger log)
{
try
{
Uri requestUri = new Uri($"{_config.NlpEndpoint}&subscription-key={_config.NlpSubscriptionKey.Value}");
byte[] buffer = Encoding.UTF8.GetBytes($"\"{transcript}\"");
ByteArrayContent content = new ByteArrayContent(buffer);
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
HttpResponseMessage response = await _httpClient.PostAsync(requestUri.AbsoluteUri, content, log);
if (response.StatusCode != HttpStatusCode.OK)
{
// TODO: Throw a better exception
throw new Exception("Request failed!");
}
string responseContent = await response.Content.ReadAsStringAsync();
LuisResponse luisResponse = JsonConvert.DeserializeObject<LuisResponse>(responseContent);
TranscriptionData data = new TranscriptionData();
data.EvaluatedTranscription = transcript;
if (luisResponse.TopScoringIntent != null)
{
data.Intent = luisResponse.TopScoringIntent.Intent;
data.IntentConfidence = luisResponse.TopScoringIntent.Score;
}
data.Dates = ExtractDateTimes(luisResponse, log);
data.Location = ExtractLocation(luisResponse, log);
data.Person = ExtractPerson(luisResponse, log);
data.AdditionalData = EnumerateAdditionalEntities(luisResponse, log);
return data;
}
catch (HttpRequestException ex)
{
throw new DataExtractorException("Exception encountered extracting data! See inner exception for details.", ex);
}
}
