public bool EndSearch(string token)
{
SearchSession session = GetSession(token);
if (session != null)
{
Sessions.Remove(session);
}
return(session != null);
}
public SearchSession GetSession(string token)
{
SearchSession session = Sessions.Where(S => S.Token == token).FirstOrDefault();
if (session != null)
{
// expired
if (session.LastRequest.AddSeconds(session.KeepAlive) < System.DateTime.Now)
{
Sessions.Remove(session);
return(null);
}
session.LastRequest = System.DateTime.Now;
}
return(session);
}
public override FindPTZPositionResultList GetPTZPositionSearchResults(string SearchToken, int MinResults, bool MinResultsSpecified, int MaxResults, bool MaxResultsSpecified, string WaitTime)
{
SearchSession session = SearchSessionManager.Instance.GetSession(SearchToken);
if (session != null)
{
List <FindPTZPositionResult> data = (List <FindPTZPositionResult>)session.Data;
FindPTZPositionResultList list = new FindPTZPositionResultList();
Random rnd = new Random();
int cnt = Math.Min(rnd.Next(1, 4), data.Count);
rnd = new Random();
int sleep = rnd.Next(1, 3);
System.Threading.Thread.Sleep(400 * sleep + 450);
list.Result = new FindPTZPositionResult[cnt];
for (int i = 0; i < cnt; i++)
{
list.Result[i] = data[0];
data.RemoveAt(0);
}
session.ResultsSent = session.ResultsSent + cnt;
list.SearchState = data.Count > 0 ? SearchState.Searching : SearchState.Completed;
if (data.Count == 0)
{
SearchSessionManager.Instance.Sessions.Remove(session);
}
return(list);
}
else
{
CommonUtils.ReturnFault(new string[] { "Sender", "InvalidArgVal", "InvalidToken" });
return(null);
}
}
public override string FindPTZPosition(System.DateTime StartPoint, System.DateTime EndPoint, bool EndPointSpecified, SearchScope Scope, PTZPositionFilter SearchFilter, int MaxMatches, bool MaxMatchesSpecified, string KeepAliveTime)
{
string token = SearchSessionManager.Instance.GetNextToken();
int keepAliveTime = 0;
string strKeepAlive = KeepAliveTime.Substring(2, KeepAliveTime.Length - 3);
keepAliveTime = int.Parse(strKeepAlive);
if (KeepAliveTime.EndsWith("M"))
{
keepAliveTime = keepAliveTime * 60;
}
SearchSession session = new SearchSession()
{
KeepAlive = keepAliveTime,
Token = token,
Started = System.DateTime.Now,
LastRequest = System.DateTime.Now
};
bool ascending = true;
if (EndPointSpecified)
{
if (EndPoint < StartPoint)
{
ascending = false;
}
}
List <FindPTZPositionResult> filtered = SearchStorage.Instance.PtzPositions;
if (ascending)
{
filtered =
filtered.Where(E => (E.Time >= StartPoint &&
(E.Time <= EndPoint || !EndPointSpecified))).OrderBy(E => E.Time).ToList();
}
else
{
filtered =
filtered.Where(E => (E.Time <= StartPoint &&
(E.Time >= EndPoint || !EndPointSpecified))).OrderByDescending(E => E.Time).ToList();
}
List <FindPTZPositionResult> list;
if (MaxMatchesSpecified)
{
list = new List <FindPTZPositionResult>();
for (int i = 0; i < Math.Min(MaxMatches, filtered.Count); i++)
{
list.Add(filtered[i]);
}
}
else
{
list = new List <FindPTZPositionResult>(filtered);
}
session.Data = list;
SearchSessionManager.Instance.Sessions.Add(session);
return(token);
}
