AbstractOp.h

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/*  Copyright (C) 2008 National Institute For Space Research (INPE) - Brazil.
 
    This file is part of the TerraLib - a Framework for building GIS enabled applications.
 
    TerraLib is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License,
    or (at your option) any later version.
 
    TerraLib is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public License
    along with TerraLib. See COPYING. If not, write to
    TerraLib Team at <terralib-team@terralib.org>.
 */
 
/*!
  \file terralib/fe/serialization/xml/AbstractOp.h
   
  \brief Auxiliary classes and functions to serialize filter operations from a XML document.
*/
 
#ifndef __TERRALIB_FE_SERIALIZATION_XML_INTERNAL_ABSTRACTOP_H
#define __TERRALIB_FE_SERIALIZATION_XML_INTERNAL_ABSTRACTOP_H
 
// TerraLib
#include "../../../common/Singleton.h"
#include "../../Config.h"
 
// STL
#include <map>
#include <string>
 
// Boost
#include <boost/function.hpp>
 
namespace te
{
  namespace xml
  {
    class AbstractWriter;
    class Reader;
  }
 
  namespace fe
  {
    class AbstractOp;
 
    namespace serialize
    {
      class TEFEEXPORT AbstractOp : public te::common::Singleton<AbstractOp>
      {
        friend class te::common::Singleton<AbstractOp>;
 
        public:
 
          typedef boost::function<te::fe::AbstractOp* (const char* opName, te::xml::Reader&)> AbstractOpReadFnctType;
          typedef boost::function<void (const te::fe::AbstractOp*, te::xml::AbstractWriter&)> AbstractOpWriteFnctType;
          typedef std::pair<AbstractOpReadFnctType, AbstractOpWriteFnctType> AbstractOpFnctSerializeType;
          typedef std::map<std::string, AbstractOpFnctSerializeType> AbstractOpFnctIdxType;
 
          void reg(const std::string& opName, const AbstractOpFnctSerializeType& fncts);
 
          te::fe::AbstractOp* read(te::xml::Reader& reader) const;
 
          void write(const te::fe::AbstractOp* op, te::xml::AbstractWriter& writer) const;
 
          ~AbstractOp();
 
        protected:
 
          AbstractOp();
 
        private:
 
          AbstractOpFnctIdxType m_fncts;
          std::map<std::string, const char*> m_names; //!< Auxiliary map of string to te::fe::Global names pointers.
      };
    } // end namespace serialize
  }   // end namespace fe
}     // end namespace te
 
#endif  // __TERRALIB_FE_SERIALIZATION_XML_INTERNAL_ABSTRACTOP_H