/// <summary>
/// This method breaks input HTML and send request for each tag
/// </summary>
/// <param name="htmlInput"></param>
/// <returns></returns>
public string HtmlMachineTranslate(string htmlInput, string translatedLanguage, string primaryLanguage = null)
{
TranslateHelper.Initialize();
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(htmlInput);
Action <HtmlNode> drill = null;
drill = (node) =>
{
foreach (var child in node.ChildNodes)
{
if (child.NodeType == HtmlNodeType.Text)
{
var text = child.InnerText;
try
{
var translated = this.MachineTranslate(text, translatedLanguage, primaryLanguage);
child.InnerHtml = translated;
}
catch (Exception)
{
}
}
drill(child);
}
};
drill(doc.DocumentNode);
return(doc.DocumentNode.OuterHtml);
}
/// <summary>
/// Translate the input to given locale
/// </summary>
/// <param name="input"></param>
/// <param name="language"></param>
/// <returns></returns>
public string Translate(string input, string language, string defaultTranslation = null, bool useMachineTranslation = true)
{
TranslateHelper.Initialize();
// primary language - is no translation
if (string.IsNullOrEmpty(language))
{
return(input);
}
var key = language + "-" + input;
string translated;
if (_Translations.TryGetValue(key, out translated) == false)
{
if (string.IsNullOrEmpty(defaultTranslation))
{
if (useMachineTranslation)
{
try
{
}
catch (Exception)
{
return(input);
}
}
}
lock (BaseModule.GetLockObject("Translate-" + key))
{
// when other threads unlocked - we have to check again
if (_Translations.ContainsKey(key))
{
return(_Translations[key]);
}
_Translations[key] = defaultTranslation;
_Database.UpsertRecord <TranslateEntry>(new TranslateEntry()
{
Primary = input,
Language = language,
Translated = defaultTranslation
});
return(defaultTranslation);
}
}
return(translated);
}
/// <summary>
/// Performs Machine translation using Microsoft Translator API
/// </summary>
/// <param name="input"></param>
/// <param name="primaryLanguage"></param>
/// <param name="translatedLanguage"></param>
/// <param name=""></param>
/// <returns></returns>
public string MachineTranslate(string input, string translatedLanguage, string primaryLanguage = null)
{
TranslateHelper.Initialize();
if (input.Length > 10000)
{
throw new InvalidOperationException("Input is too long for machine translation");
}
if (string.IsNullOrEmpty(input.Trim()))
{
return(string.Empty);
}
var key = translatedLanguage + "-" + input.Trim();
string translated;
if (_Translations.TryGetValue(key, out translated))
{
return(translated);
}
lock (BaseModule.GetLockObject("Translate-" + key))
{
// when other threads unlocked - we have to check again
if (_Translations.ContainsKey(key))
{
return(_Translations[key]);
}
var siteSettings = AdminModule.ReadSiteSettings();
var translate = siteSettings.translate;
if (translate == null || translate.key == null)
{
throw new InvalidOperationException("Machine Translation require 'key' in translate object of site settings");
}
RestClient client = new RestClient("https://api.microsofttranslator.com");
RestRequest req = new RestRequest("/v2/Http.svc/Translate");
req.Method = Method.GET;
req.AddHeader("Ocp-Apim-Subscription-Key", (string)translate.key);
req.AddQueryParameter("text", input);
req.AddQueryParameter("to", translatedLanguage);
if (string.IsNullOrEmpty(primaryLanguage) == false)
{
req.AddQueryParameter("from", primaryLanguage);
}
var result = client.Execute(req);
var element = System.Xml.Linq.XElement.Parse(result.Content);
translated = element.Value;
_Translations[key] = translated;
_Database.UpsertRecord <TranslateEntry>(new TranslateEntry()
{
Primary = input,
Language = translatedLanguage,
Translated = translated
});
return(translated);
}
}
