The SessionManager pattern revisited

NOTICE: This blog entry was imported from our previous blogging platform.
The real entry date is November 25, 2009

Here's the new and improved SessionManager pattern. I thought I would blog it because it looks so elegant and useful. Here it is:

namespace Unosquare.Patterns

{
    public static class SessionManager
    {
        private enum SessionKeys
        {
            User,
            IsAuthenticated,
            ClientEntity,
            ClientEntityId
        }

        private static T GetSessionProperty(SessionKeys key) where T : new()
        {
            var sessionKey = key.ToString();

            if (HttpContext.Current.Session[sessionKey] == null)
            {
                HttpContext.Current.Session[sessionKey] = new T();
            }
            return (T)HttpContext.Current.Session[sessionKey];
        }

        private static void SetSessionProperty(SessionKeys key, T value) where T : new()
        {
            var sessionKey = key.ToString();
            HttpContext.Current.Session[sessionKey] = value;
        }

        public static bool IsAuthenticated
        {
            get
            {
                var value = GetSessionProperty(SessionKeys.IsAuthenticated);
                return value.HasValue ? value.Value : false;
            }
            set
            {
                SetSessionProperty(SessionKeys.IsAuthenticated, value);
            }
        }

        public static User User
        {
            get
            {
                return GetSessionProperty(SessionKeys.User);
            }
            set
            {
                SetSessionProperty(SessionKeys.User, value);
            }
        }

        public static ClientEntity ClientEntity
        {
            get
            {
                return GetSessionProperty(SessionKeys.ClientEntity);
            }
            set
            {
                SetSessionProperty(SessionKeys.ClientEntity, value);
            }
        }


        public static Guid ClientEntityId
        {
            get
            {
                var value = GetSessionProperty(SessionKeys.ClientEntityId);
                return value.HasValue ? value.Value : Guid.Empty;
            }
            set
            {
                SetSessionProperty(SessionKeys.ClientEntityId, value);
            }
        }


    }
}