/// <summary>
/// Gets or creates a session for the session ID
/// </summary>
/// <param name="self">The session ID to use</param>
/// <param name="request">The request to report to the creation callback</param>
/// <returns>The values for the session</returns>
public static async Task <Dictionary <string, object> > GetOrCreateSessionAsync(string id, TimeSpan duration = default(TimeSpan), IHttpRequest request = null, SessionCreateCallback createCallback = null, SessionExpireCallback expireCallback = null)
{
if (string.IsNullOrWhiteSpace(id))
{
throw new ArgumentNullException(nameof(id));
}
if (duration.Ticks < 0)
{
throw new ArgumentOutOfRangeException(nameof(duration));
}
SessionItem res;
bool created = false;
lock (_lock)
{
_sessions.TryGetValue(id, out res);
if (res == null)
{
_sessions[id] = res = new SessionItem(id, duration.Ticks == 0 ? SessionDuration: duration)
{
ExpireCallback = expireCallback
};
created = true;
}
else
{
_expirations[res.Expires.Ticks].Remove(res.ID);
}
res.Expires = DateTime.Now.Add(res.Duration);
_expirations.TryGetValue(res.Expires.Ticks, out var lst);
if (lst == null)
{
_expirations[res.Expires.Ticks] = lst = new List <string>();
}
_expirations[res.Expires.Ticks].Add(res.ID);
}
if (created)
{
if (createCallback != null)
{
await createCallback(request, res.ID, res.Values);
}
else if (SessionStarted != null)
{
await SessionStarted(request, res.ID, res.Values);
}
}
StartExpireTimer();
return(res.Values);
}
/// <summary> /// Gets or creates a session for the current request /// </summary> /// <param name="self">The request to use</param> /// <returns>The values for the session</returns> public static Task <Dictionary <string, object> > GetOrCreateSessionAsync(this IHttpRequest self, TimeSpan duration = default(TimeSpan), SessionCreateCallback createCallback = null, SessionExpireCallback expireCallback = null) => GetOrCreateSessionAsync(self.SessionID, duration, self, createCallback, expireCallback);
