Teko_RequestHandler.hpp

/*
// @HEADER
//
// ***********************************************************************
//
//      Teko: A package for block and physics based preconditioning
//                  Copyright 2010 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Eric C. Cyr (eccyr@sandia.gov)
//
// ***********************************************************************
//
// @HEADER

*/

#ifndef __Teko_RequestHandler_hpp__
#define __Teko_RequestHandler_hpp__

#include <vector>

#include "Teko_RequestCallback.hpp"

#include "Teuchos_RCP.hpp"

namespace Teko {

class RequestHandler {
 public:
  explicit RequestHandler();

  void addRequestCallback(const Teuchos::RCP<RequestCallbackBase> &callback);

  template <typename DataT>
  DataT request(const RequestMesg &rm) const;

  template <typename DataT>
  inline DataT request(const std::string &rm) const {
    return request<DataT>(RequestMesg(rm));
  }

  template <typename DataT>
  void preRequest(const RequestMesg &rm) const;

  template <typename DataT>
  inline void preRequest(const std::string &rm) const {
    preRequest<DataT>(RequestMesg(rm));
  }

 private:
  // stores the callbacks to be used by this handler.
  mutable std::vector<Teuchos::RCP<RequestCallbackBase> > callbacks_;

  // hidden from the user
  RequestHandler(const RequestHandler &rh);
  RequestHandler &operator=(const RequestHandler &);
  const RequestHandler &operator=(const RequestHandler &) const;
};

#include "Teko_RequestHandler_impl.hpp"

}  // namespace Teko

#endif