예제 #1
0
 // Notification raised before ADAL accesses the cache.
 // This is your chance to update the in-memory copy from the DB, if the in-memory version is stale
 void BeforeAccessNotification(TokenCacheNotificationArgs args)
 {
     if (Cache == null)
     {
         // first time access
         Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
     }
     else
     {   // retrieve last write from the DB
         var status = from e in db.UserTokenCacheList
                      where (e.webUserUniqueId == User)
                      select new
         {
             LastWrite = e.LastWrite
         };
         // if the in-memory copy is older than the persistent copy
         if (status.First().LastWrite > Cache.LastWrite)
         //// read from from storage, update in-memory copy
         {
             Cache = db.UserTokenCacheList.FirstOrDefault(c => c.webUserUniqueId == User);
         }
     }
     this.Deserialize((Cache == null) ? null : Cache.cacheBits);
 }