aimsGraphR.h

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/* This software and supporting documentation are distributed by
 *     Institut Federatif de Recherche 49
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 *     91191 Gif-sur-Yvette cedex
 *     France
 *
 * This software is governed by the CeCILL-B license under
 * French law and abiding by the rules of distribution of free software.
 * You can  use, modify and/or redistribute the software under the
 * terms of the CeCILL-B license as circulated by CEA, CNRS
 * and INRIA at the following URL "http://www.cecill.info".
 *
 * As a counterpart to the access to the source code and  rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty  and the software's author,  the holder of the
 * economic rights,  and the successive licensors  have only  limited
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 * with loading,  using,  modifying and/or developing or reproducing the
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 */
 
#ifndef AIMS_IO_AIMSGRAPHR_H
#define AIMS_IO_AIMSGRAPHR_H
 
#include <aims/io/process.h>
#include <aims/bucket/bucket.h>
#include <cartobase/object/attributed.h>
#include <set>
 
class Graph;
 
namespace aims
{
 
  namespace internal
  {
    struct AimsGraphReader_Private;
    struct AimsGraphReader_ElemStruct;
  }
 
  class AimsGraphReader : public Process
  {
  public:
    friend struct internal::AimsGraphReader_Private;
 
    struct Wrapper
    {
      friend class AimsGraphReader;
 
      virtual ~Wrapper() {}
      virtual void destroy() {}
 
      virtual std::string objectType() const = 0;
      virtual std::string dataType() const = 0;
 
    private:
      virtual Wrapper *extract( int index ) = 0;
    };
 
    template<typename T> struct ObjectWrapper : public Wrapper
    {
      ObjectWrapper( T* x ) : data( x ) {}
      virtual ~ObjectWrapper() {}
      virtual void destroy() { delete data; }
 
      virtual std::string objectType() const;
      virtual std::string dataType() const;
 
      T *data;
 
    private:
      virtual Wrapper *extract( int index );
    };
 
    struct ElementInfo
    {
      Graph                     *graph;
      carto::AttributedObject   *element;
      std::string               attribute;
      Wrapper                   *object;
    };
 
    class PostProcessor : public Process
    {
    public:
      friend class AimsGraphReader;
      PostProcessor();
      virtual ~PostProcessor();
      const ElementInfo & elementInfo() const { return( info ); }
      ElementInfo & elementInfo() { return( info ); }
 
    private:
      ElementInfo       info;
    };
 
    AimsGraphReader( const std::string & filename );
    virtual ~AimsGraphReader();
 
    virtual void readElements( Graph & g, int mask = 1 );
    void setReadFilter( const std::set<std::string> & toread );
    void setExcludeFilter( const std::set<std::string> & toexclude );
    void setInsertionFunction( const std::string & objType, 
                               const std::string & dataType, 
                               ProcFunc procFunc );
    template<class T> static 
    bool read( Process &, const std::string &, Finder & );
 
    static void loadAllMissingElements( Graph & );
 
  private:
    template<class T> static 
    bool defaultInsertFunction( Process &, const std::string &, Finder & );
    virtual void readElement( carto::AttributedObject* ao, 
                              internal::AimsGraphReader_ElemStruct & es );
 
    internal::AimsGraphReader_Private   *_priv;
  };
 
}
 
 
#endif