private void GetDocuments(Models.CSTADocuments doc, string source)
{
var reader = new StringReader(source);
int id = 0;
string line = "";
while ((line = reader.ReadLine()) != null)
{
doc.documents.Add(new Models.CSTADocument()
{
id = id.ToString(),
text = line
});
id++;
}
}
/// <summary>
/// Detect languege of text
/// This method get language of 1st document only.
/// https://westus.dev.cognitive.microsoft.com/docs/services/TextAnalytics.V2.0/operations/56f30ceeeda5650db055a3c7
/// </summary>
/// <returns></returns>
private async Task <DetectedLanguage> DetectLanguage()
{
var result = new DetectedLanguage();
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", accessKey);
var uri = "https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/languages" + queryString;
HttpResponseMessage response;
var documents = new Models.CSTADocuments();
GetDocuments(documents, tbSource.Text);
var json = JsonConvert.SerializeObject(documents);
byte[] byteData = Encoding.UTF8.GetBytes(json);
using (var content = new ByteArrayContent(byteData))
{
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
response = await client.PostAsync(uri, content);
if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
if (response.Content.Headers.ContentLength.Value > 0)
{
var buf = new byte[response.Content.Headers.ContentLength.Value];
using (var resStream = await response.Content.ReadAsStreamAsync())
{
int readLen = await resStream.ReadAsync(buf, 0, buf.Length);
var responseContent = Encoding.UTF8.GetString(buf);
Debug.WriteLine(responseContent);
var jobject = JObject.Parse(responseContent);
result.iso6391Name = (string)jobject.SelectToken("documents[0].detectedLanguages[0].iso6391Name");
result.score = (decimal)jobject.SelectToken("documents[0].detectedLanguages[0].score");
result.name = (string)jobject.SelectToken("documents[0].detectedLanguages[0].name");
}
}
}
}
return(result);
}
/// <summary>
/// Detect Topics.
/// This method is under construction.
/// https://westus.dev.cognitive.microsoft.com/docs/services/TextAnalytics.V2.0/operations/56f30ceeeda5650db055a3ca
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void buttonTATopics_Click(object sender, RoutedEventArgs e)
{
if (!FixAccessKey())
{
return;
}
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", accessKey);
var uri = "https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/topics" + queryString;
HttpResponseMessage response;
var srcDocs = new Models.CSTADocuments();
GetDocuments(srcDocs, tbSource.Text);
var topicRequest = new Models.CSTATopicsRequest();
if (srcDocs.documents.Count < 100)
{
for (int i = 0; i < 100; i++)
{
topicRequest.documents.Add(new Models.CSTADocument()
{
id = i.ToString(),
text = srcDocs.documents[(i % srcDocs.documents.Count)].text
});
}
}
// above code is origin of failed in detecting.
var json = JsonConvert.SerializeObject(topicRequest);
byte[] byteData = Encoding.UTF8.GetBytes(json);
using (var content = new ByteArrayContent(byteData))
{
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
tbStatus.Text = "Positing...";
response = await client.PostAsync(uri, content);
if (response.StatusCode == System.Net.HttpStatusCode.Accepted)
{
Debug.WriteLine("Start to get results...");
var operationId = response.Headers.GetValues("Operation-Location").ElementAt(0);
bool onGoing = true;
string status = "NotStarted";
int counter = 0;
while (onGoing)
{
var resClient = new HttpClient();
resClient.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", accessKey);
Debug.WriteLine("Start to get chunk...");
tbStatus.Text = "Getting chunk : " + counter + "...";
var resResponse = await resClient.GetAsync(operationId);
Debug.WriteLine("End to get chunk");
if (resResponse.StatusCode == System.Net.HttpStatusCode.OK)
{
using (var resResStram = await resResponse.Content.ReadAsStreamAsync())
{
var buf = new byte[resResStram.Length];
var readLen = await resResStram.ReadAsync(buf, 0, buf.Length);
var resultC = System.Text.UTF8Encoding.UTF8.GetString(buf);
var jobject = JObject.Parse(resultC);
var currentStatus = jobject.SelectToken("status");
Debug.WriteLine(resultC);
status = currentStatus.ToString();
if (currentStatus.ToString() == "Failed")
{
onGoing = false;
tbResult.Text = resultC;
}
else if (currentStatus.ToString() == "Succeeded")
{
// this block has not been reached.
onGoing = false;
tbResult.Text = resultC;
}
}
}
Thread.Sleep(1000);
counter++;
Debug.WriteLine("Status:" + status + "Round:" + counter);
}
Debug.WriteLine("Done");
}
}
}
