/// <summary>
/// Classifies the given text, invokes the callback with the results.
/// </summary>
/// <param name="classifierId">The ID of the classifier to use.</param>
/// <param name="text">The text to classify.</param>
/// <param name="callback">The callback to invoke with the results.</param>
/// <returns>Returns false if we failed to submit the request.</returns>
public bool Classify(string classifierId, string text, OnClassify callback)
{
if (string.IsNullOrEmpty(classifierId))
{
throw new ArgumentNullException("classifierId");
}
if (string.IsNullOrEmpty(text))
{
throw new ArgumentNullException("text");
}
if (callback == null)
{
throw new ArgumentNullException("callback");
}
string textId = Utility.GetMD5(text);
if (!DisableCache)
{
DataCache cache = null;
if (!m_ClassifyCache.TryGetValue(classifierId, out cache))
{
cache = new DataCache("NaturalLanguageClassifier_" + classifierId);
m_ClassifyCache[classifierId] = cache;
}
byte[] cached = cache.Find(textId);
if (cached != null)
{
ClassifyResult res = ProcessClassifyResult(cached);
if (res != null)
{
callback(res);
return(true);
}
}
}
RESTConnector connector = RESTConnector.GetConnector(SERVICE_ID, "/v1/classifiers");
if (connector == null)
{
return(false);
}
ClassifyReq req = new ClassifyReq();
req.TextId = textId;
req.ClassiferId = classifierId;
req.Callback = callback;
req.OnResponse = OnClassifyResp;
req.Function = "/" + classifierId + "/classify";
req.Headers["Content-Type"] = "application/json";
Dictionary <string, object> body = new Dictionary <string, object>();
body["text"] = text;
req.Send = Encoding.UTF8.GetBytes(Json.Serialize(body));
return(connector.Send(req));
}