SharedPtrHelper.hpp

#ifndef _GEMFIRE_SPEHELPER_HPP_
#define _GEMFIRE_SPEHELPER_HPP_

/*=========================================================================
 * Copyright (c) 2004-2014 Pivotal Software, Inc. All Rights Reserved.
 * This product is protected by U.S. and international copyright
 * and intellectual property laws. Pivotal products are covered by
 * more patents listed at http://www.pivotal.io/patents.
 *=========================================================================
 */

#include "gfcpp_globals.hpp"
#include "TypeHelper.hpp"
#include <typeinfo>

namespace gemfire {

  class SharedBase;

class CPPCACHE_EXPORT SPEHelper
{
  public:

  static void throwNullPointerException( const char* ename );

  static void throwClassCastException( const char* msg,
      const char* fromType, const char* toType );
};

/* Helper function template for type conversion.
 */
template< class Target, class Src > Target* getTargetHelper( Src* ptr, gemfire::TypeHelper::yes_type yes )
{
  return ptr;
}

/* Helper function template for type conversion.
 */
template< class Target, class Src > Target* getTargetHelper( Src* ptr, gemfire::TypeHelper::no_type no )
{
  Target* tptr = dynamic_cast< Target* >( ptr );
  if ( tptr ) {
    return tptr;
  }
  else {
    SPEHelper::throwClassCastException( "getTargetHelper: cast failed",
            typeid( ptr ).name( ), typeid( tptr ).name( ) );
    return NULL;
  }
}

/* Helper function template for type conversion.
 */
template< class Target, class Src > Target* getTarget( Src* ptr )
{
  return getTargetHelper< Target >( ptr, GF_SRC_IS_TARGET_TYPE( Target, Src ) );
}

/* Helper function template for type conversion.
 */
template< class Src > SharedBase* getSB( Src* ptr )
{
  return getTarget< SharedBase >( ptr );
}
}

#endif