mcs/class/System.Web/System.Web.SessionState_2.0/SessionStateUtility.cs

   1 //
   2 // System.Web.Compilation.SessionStateItemCollection
   3 //
   4 // Authors:
   5 //   Marek Habersack (grendello@gmail.com)
   6 //
   7 // (C) 2006 Marek Habersack
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 namespace System.Web.SessionState
  31 {
  32         public static class SessionStateUtility
  33         {
  34                 public static void AddHttpSessionStateToContext (HttpContext context, IHttpSessionState container)
  35                 {
  36                         if (context == null || container == null)
  37                                 return;
  38                         if (context.Session != null)
  39                                 throw new HttpException ("An HttpSessionState object for the current session has already been added to the specified context.");
  40
  41                         HttpSessionState state = new HttpSessionState (container);
  42                         context.SetSession (state);
  43                 }
  44
  45                 public static IHttpSessionState GetHttpSessionStateFromContext (HttpContext context)
  46                 {
  47                         HttpSessionState session;
  48                         if (context == null || (session = context.Session) == null)
  49                                 return null;
  50
  51                         return session.Container;
  52                 }
  53
  54                 public static HttpStaticObjectsCollection GetSessionStaticObjects (HttpContext context)
  55                 {
  56                         HttpSessionState session;
  57                         if (context == null || (session = context.Session) == null)
  58                                 return null;
  59                         return session.Container.StaticObjects;
  60                 }
  61
  62                 public static void RaiseSessionEnd (IHttpSessionState session, Object eventSource, EventArgs eventArgs)
  63                 {
  64                         HttpSessionState state = new HttpSessionState (session);
  65                         HttpApplicationFactory.InvokeSessionEnd (state, eventSource, eventArgs);
  66                 }
  67
  68                 public static void RemoveHttpSessionStateFromContext (HttpContext context)
  69                 {
  70                         if (context == null)
  71                                 return;
  72                         context.SetSession (null);
  73                 }
  74         }
  75 }