public List <EntityRecognition> getEntityList(string result)
{
List <EntityRecognition> entity = new List <EntityRecognition>();
int currentlength = 0;
while (currentlength < result.Length)
{
int StartIndex = result.IndexOf("<PERSON>", currentlength);
int EndIndex = result.IndexOf("</PERSON>", currentlength);
if (StartIndex != -1 || EndIndex != -1)
{
StartIndex = StartIndex + 8;
string entityValue = (result.Substring(StartIndex, EndIndex - StartIndex));
EntityRecognition recog = new EntityRecognition();
recog.EntityType = "PERSON";
recog.EntityValue = entityValue;
entity.Add(recog);
currentlength = currentlength + EndIndex + 1;
}
else
{
break;
}
}
currentlength = 0;
while (currentlength < result.Length)
{
int StartIndex = result.IndexOf("<LOCATION>", currentlength);
int EndIndex = result.IndexOf("</LOCATION>", currentlength);
if (StartIndex != -1 || EndIndex != -1)
{
StartIndex = StartIndex + 10;
string entityValue = (result.Substring(StartIndex, EndIndex - StartIndex));
EntityRecognition recog = new EntityRecognition();
recog.EntityType = "LOCATION";
recog.EntityValue = entityValue;
entity.Add(recog);
currentlength = currentlength + EndIndex + 1;
}
else
{
break;
}
}
return(entity);
}
public ChatIntent GetEntityforIntentfromNLP(ChatIntent responseIntent)
{
AskMeEntityExtracttionNLP nlp = new AskMeEntityExtracttionNLP();
List <EntityRecognition> entityListMessage = new List <EntityRecognition>();
List <EntityRecognized> entityListRecognized = new List <EntityRecognized>();
List <ChatEntity> entityListDb = db.ChatEntity.Where(x => x.ChatIntentId == Node).ToList();
if (entityListDb.Where(x => x.EntityType.Contains("PERSON")).Any() || entityListDb.Where(x => x.EntityType.Contains("LOCATION")).Any())
{
entityListMessage = nlp.ExtractionChannel(Message);
}
HttpContext httpContext = HttpContext.Current;
foreach (ChatEntity entity in entityListDb)
{
if (entity.EntityType.ToUpper().Contains("PERSON") && entityListMessage.Count > 0)
{
var hasRecognition = entityListMessage.Where(x => x.EntityType == "PERSON");
if (hasRecognition.Any())
{
EntityRecognition recog = hasRecognition.FirstOrDefault();
EntityRecognized recognized = new EntityRecognized();
recognized.EntityType = entity.EntityType;
recognized.EntityName = entity.EntityName;
recognized.EntityValue = recog.EntityValue;
recognized.NotRecognized = false;
entityListRecognized.Add(recognized);
if (entity.EntityName.ToUpper().Contains("USERNAME"))
{
httpContext.Session["authUser"] = recog.EntityValue;
ChatSession chatSession = db.ChatSession.Where(x => x.SessionId == SessionId).FirstOrDefault();
chatSession.SessionUd = recog.EntityValue;
db.SaveChanges();
}
}
}
else if (entity.EntityType.ToUpper().Contains("LOCATION") && entityListMessage.Count > 0)
{
var hasRecognition = entityListMessage.Where(x => x.EntityType == "LOCATION");
if (hasRecognition.Any())
{
EntityRecognition recog = hasRecognition.FirstOrDefault();
EntityRecognized recognized = new EntityRecognized();
recognized.EntityType = entity.EntityType;
recognized.EntityName = entity.EntityName;
recognized.EntityValue = recog.EntityValue;
recognized.NotRecognized = false;
entityListRecognized.Add(recognized);
}
}
else if (entity.EntityType.ToUpper().Contains("NUMBER") && entityListMessage.Count > 0)
{
string numericValue = new String(Message.Where(Char.IsDigit).ToArray());
if (numericValue.Length > 0)
{
EntityRecognized recognized = new EntityRecognized();
recognized.EntityType = entity.EntityType;
recognized.EntityName = entity.EntityName;
recognized.EntityValue = numericValue;
recognized.NotRecognized = false;
entityListRecognized.Add(recognized);
}
}
else
{
EntityRecognized recognized = new EntityRecognized();
recognized.EntityType = entity.EntityType;
recognized.EntityName = entity.EntityName;
recognized.EntityValue = entity.EntityDescription;
recognized.NotRecognized = true;
entityListRecognized.Add(recognized);
}
}
string noEntityMessage = string.Empty;
List <ChatSessionEntity> sessionEntityList = new List <ChatSessionEntity>();
foreach (EntityRecognized recognized in entityListRecognized)
{
ChatSessionEntity sessionEntity = new ChatSessionEntity();
sessionEntity.SessionId = SessionId;
sessionEntity.EntityType = recognized.EntityType;
sessionEntity.EntityName = recognized.EntityName;
sessionEntity.EntityValue = recognized.EntityValue;
sessionEntity.NotRecognized = recognized.NotRecognized;
db.ChatSessionEntity.Add(sessionEntity);
sessionEntityList.Add(sessionEntity);
if (recognized.NotRecognized)
{
noEntityMessage = noEntityMessage + recognized.EntityValue + " ";
}
}
db.SaveChanges();
if (noEntityMessage.Length > 1)
{
Message = noEntityMessage;
httpContext.Session[Node.ToString()] = entityListRecognized;
}
else
{
AskMeOnlineApi onlineApi = new AskMeOnlineApi();
ChatIntent forOnline = db.ChatIntent.Where(x => x.ChatIntentId == Node).FirstOrDefault();
KeyValuePair <int, string> onlineResponse = onlineApi.OnlineApiChannelforNLP(forOnline, sessionEntityList);
Node = onlineResponse.Key;
Message = onlineResponse.Value;
}
responseIntent.ChatIntentId = Node;
responseIntent.Response = Message;
return(responseIntent);
}
