protected override async Task Translate(ITranslationSession translationSession)
{
var authenticationKey = AuthenticationKey;
if (string.IsNullOrEmpty(authenticationKey))
{
translationSession.AddMessage("Azure Translator requires subscription secret.");
return;
}
var token = await AzureAuthentication.GetBearerAccessTokenAsync(authenticationKey, translationSession.CancellationToken).ConfigureAwait(false);
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Add("Authorization", token);
var throttle = new Throttle(MaxCharactersPerMinute, translationSession.CancellationToken);
var itemsByLanguage = translationSession.Items.GroupBy(item => item.TargetCulture);
foreach (var languageGroup in itemsByLanguage)
{
var cultureKey = languageGroup.Key;
var targetLanguage = cultureKey.Culture ?? translationSession.NeutralResourcesLanguage;
var itemsByTextType = languageGroup.GroupBy(GetTextType);
foreach (var textTypeGroup in itemsByTextType)
{
var textType = textTypeGroup.Key;
foreach (var sourceItems in SplitIntoChunks(translationSession, textTypeGroup))
{
if (!sourceItems.Any())
{
break;
}
var sourceStrings = sourceItems
.Select(item => item.Source)
.Select(RemoveKeyboardShortcutIndicators)
.ToList();
await throttle.Tick(sourceItems);
if (translationSession.IsCanceled)
{
return;
}
var uri = new Uri($"https://api.cognitive.microsofttranslator.com/translate?api-version=3.0&from={translationSession.SourceLanguage.IetfLanguageTag}&to={targetLanguage.IetfLanguageTag}&textType={textType}");
var response = await client.PostAsync(uri, CreateRequestContent(sourceStrings), translationSession.CancellationToken).ConfigureAwait(false);
response.EnsureSuccessStatusCode();
var stream = await response.Content.ReadAsStreamAsync().ConfigureAwait(false);
using (var reader = new StreamReader(stream, Encoding.UTF8))
{
var translations = JsonConvert.DeserializeObject <List <AzureTranslationResponse> >(reader.ReadToEnd());
if (translations != null)
{
await translationSession.MainThread.StartNew(() => ReturnResults(sourceItems, translations)).ConfigureAwait(false);
}
}
}
}
}
}
}
public TranslatorHost([ImportMany] ITranslator[] translators)
{
Contract.Requires(translators != null);
_changeThrottle = new Throttle(TimeSpan.FromSeconds(1), SaveConfiguration);
_translators = translators;
_translators.ForEach(translator => translator.PropertyChanged += (_, __) => _changeThrottle.Tick());
var settings = Settings.Default;
var configuration = settings.Configuration;
if (string.IsNullOrEmpty(configuration))
{
return;
}
try
{
var values = JsonConvert.DeserializeObject <Dictionary <string, string> >(configuration);
Contract.Assume(values != null);
foreach (var translator in _translators)
{
Contract.Assume(translator != null);
string setting;
if (!values.TryGetValue(translator.Id, out setting))
{
continue;
}
if (string.IsNullOrEmpty(setting))
{
continue;
}
try
{
JsonConvert.PopulateObject(setting, translator);
}
catch // Newtonsoft.Jason has not documented any exceptions...
{
}
}
}
catch // Newtonsoft.Jason has not documented any exceptions...
{
}
}
