public static T GetSessionData <T>(string sessionId, string key) where T : class
{
lock (_threadLock)
{
T value = default(T);
Session session = _sessions.Value.FirstOrDefault(s => s.SessionId == sessionId);
if (session.IsNotNull())
{
KeyValuePair <string, object> kv = session._values.Value.FirstOrDefault(v => v.Key == key);
if (kv.IsNotNull() && kv.Value.IsTypeOf <T>())
{
value = kv.Value.CastToType <T>();
}
}
return(value);
}
}
// Traverse the graph
private ArrayList ShortestPathInternal(IDictionary <string, Node> graph, string toAccount, int asOfTime)
{
KeyValuePair <string, Node> head = graph.First();
ArrayList visited = new ArrayList();
while (head.IsNotNull() && head.Key != toAccount && head.Value.Timestamp <= asOfTime)
{
visited.Add(head.Key);
var adjacentNodes = graph.Where(x => head.Value.AdjacentNodes.Contains(x.Key));
head = (from p in adjacentNodes
where (p.Value.AdjacentNodes.Contains(toAccount) || p.Value.AdjacentNodes.Any()) &&
!visited.Contains(p.Key)
orderby p.Value.Timestamp descending
select p).FirstOrDefault();
}
return(visited);
}
/// <summary>
/// 根据会话ID获取会话对象
/// </summary>
/// <param name="SessionID"></param>
/// <returns></returns>
public IUserSession <T> GetUserSession(Guid SessionID)
{
if (Options.IsSqlSaveCookie)
{
return(null);
}
else
{
KeyValuePair <string, object> item = UserSessions.First(p => ((IUserSession <T>)(p.Value)).SessionID == SessionID);
if (item.IsNotNull())
{
return(item.Value as IUserSession <T>);
}
else
{
return(null);
}
}
}
public static void SetSessionData(string sessionId, string key, object value)
{
lock (_threadLock)
{
Session session = _sessions.Value.FirstOrDefault(s => s.SessionId == sessionId);
if (session.IsNotNull())
{
KeyValuePair <string, object> kv = session._values.Value.FirstOrDefault(v => v.Key == key);
if (kv.IsNotNull())
{
session._values.Value.Remove(kv);
}
session._values.Value.Add(new KeyValuePair <string, object>(key, value));
}
else
{
throw new InvalidSessionIdException("Session doesn't exist or was released");
}
}
}
