c# - How to cache items within a filterAttribute -

how use caching maybe attribute along? not having make lot of calls container.getservice , getting user. put caching place cache identity key , planner value , up?

    public class adminsandprogrammanagersonlyattribute : filterattribute, iauthorizationfilter {     public adminsandprogrammanagersonlyattribute()     {         order = 1; //must come after authenticateattribute     }      public void onauthorization(authorizationcontext filtercontext)     {         var userrepository = globalapplication.container.getservice<irepository<projectplannerinfo>>();         var identity = filtercontext.httpcontext.user.identity;         var planner = userrepository.getall().whereemailis(identity.name);          if (!planner.isinrole("db admin") || planner.programmanager == 1)         {             filtercontext.result = new redirecttorouteresult("error", new routevaluedictionary(new { controller = "error", action = "insufficientprivileges", reason = "contract" }));         }     } } 

soo...

something this?

 public void onauthorization(authorizationcontext filtercontext)     {         var identity = filtercontext.httpcontext.user.identity;          if (filtercontext.httpcontext.cache[identity.name] == null)         {             if (filtercontext.httpcontext.cache["repo"] == null)             {                 filtercontext.httpcontext.cache.add("repo", globalapplication.container.getservice<irepository<projectplannerinfo>>(), null, datetime.now.addseconds(30), cache.noslidingexpiration, cacheitempriority.normal, null);             }              var userrepository = filtercontext.httpcontext.cache["repo"] irepository<projectplannerinfo>;              filtercontext.httpcontext.cache.add(identity.name, userrepository.getall().whereemailis(identity.name), null, datetime.now.addseconds(30), cache.noslidingexpiration, cacheitempriority.normal, null);         }          var planner = filtercontext.httpcontext.cache[identity.name] projectplannerinfo;          if (!planner.isinrole("db admin") || planner.programmanager == 1)         {             filtercontext.result = new redirecttorouteresult("error", new routevaluedictionary(new { controller = "error", action = "insufficientprivileges", reason = "contract" }));         }     } 

you use built-in cache:

filtercontext.httpcontext.cache