Using WCF DataContract in MVC SessionState using AppFabric cache

Question

I have a Data Access Layer, a Service Layer, and a Presentation Layer. The Presentation Layer is ASP.NET MVC2 RTM (web), and the Service Layer is WCF (services). It\'s all .NET

Answer 1

As an extension to the provided answer, I added these two methods to ease storing/retrieving the data.

    public static void Set(HttpSessionStateBase session, string key, T value)
    {
        session[key] = new Wrapper(value);
    }

    public static T Get(HttpSessionStateBase session, string key)
    {
        object value = session[key];
        if (value != null && typeof(T) == value.GetType())
        {
            return (T) value;
        }
        Wrapper wrapper = value as Wrapper;
        return (T) ((wrapper == null) ? null : wrapper.Value);
    }

This makes it a little easier to set/get values from the session:

    MyDataContract c = ...;
    Wrapper.Set(Session, "mykey", c);
    c = Wrapper.Get(Session, "mykey");

To make it even easier, add extension methods:

public static class SessionWrapperEx
{
    public static void SetWrapped(this HttpSessionStateBase session, string key, T value)
    {
        Wrapper.Set(session, key, value);
    }

    public static T GetWrapped(this HttpSessionStateBase session, string key)
    {
        return Wrapper.Get(session, key);
    }
}

And use as below:

    MyDataContract c = ...;
    Session.SetWrapped("mykey", c);
    c = Session.GetWrapped("mykey");