private bool TryGetSourceManager(string name, out ISourceManager sourceManager)
 {
     if (this.mapDelegates.TryGetValue(name, out sourceManager))
     {
         if (sourceManager.Validate())
         {
             return(true);
         }
         else
         {
             this.mapDelegates.Remove(name);
         }
     }
     return(false);
 }