include/vrvUtil/DtProxy.h

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/******************************************************************************
** Copyright (c) 2007 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile: DtProxy.h,v $ $Revision: 1.31 $ $State: Exp $
******************************************************************************/


#ifndef DtProxy_H_
#define DtProxy_H_

#include <vrvUtil/vrvUtil.h>
#include <vlutil/vlSmartPointers.h>
#include <vlutil/vlExceptions.h>

#include <map>

namespace makVrv
{
   class DtMessage;

   class DT_DLL_VRVUTIL DtProxy
   {
   public:

      DtProxy();

      virtual void makeInvalid();

      inline bool isValid() const 
      { 
         return myValidFlag; 
      }

      inline void validate() const
      {
         if(!isValid())
         {
            DtTHROW_NEW(DtCorruptedState, "Interface is invalid.");
         }
      }

   protected:

      bool myValidFlag;
   };

   typedef DtBoost::weak_ptr<DtProxy> DtProxyWP;
   typedef DtBoost::shared_ptr<DtProxy> DtProxySP;

   template <typename K, typename V>
   DtBoost::shared_ptr<V> DtFindProxyByName(std::map<K, DtBoost::weak_ptr<V> >& map, const std::string& name)
   {
      typedef DtBoost::weak_ptr<V> VWP;
      typedef DtBoost::shared_ptr<V> VSP;

      typename std::map<K, DtBoost::weak_ptr<V> >::iterator iter = map.find(name);
      if(iter != map.end())
      {
         VSP proctor = iter->second.lock();
         if(proctor)         
         {
            return proctor;
         }
      }
      return VSP();
   }

}

#endif