SimpleDemarshaller.hpp

'/***************************************************************************
  tag: Peter Soetens  Mon Jan 19 14:11:20 CET 2004  SimpleDemarshaller.hpp

                        SimpleDemarshaller.hpp -  description
                           -------------------
    begin                : Mon January 19 2004
    copyright            : (C) 2004 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU General Public                   *
 *   License as published by the Free Software Foundation;                 *
 *   version 2 of the License.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
 *                                                                         *
 *   This library 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 General Public             *
 *   License along with this library; if not, write to the Free Software   *
 *   Foundation, Inc., 59 Temple Place,                                    *
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 *                                                                         *
 ***************************************************************************/

#ifndef PI_PROPERTIES_SIMPLE_DEMARSHALLER
#define PI_PROPERTIES_SIMPLE_DEMARSHALLER

#include "../Property.hpp"

#include <vector>
#include <map>
#include <iostream>
#include <fstream>

namespace RTT
{

    class RTT_API SimpleDemarshaller : public Demarshaller
    {
      static const char TYPECODE_BOOL = 'B';
      static const char TYPECODE_CHAR = 'C';
      static const char TYPECODE_INT = 'I';
      static const char TYPECODE_DOUBLE = 'D';
      static const char TYPECODE_STRING = 'S';

public:
      typedef std::istream input_stream;

    SimpleDemarshaller(const std::string& filename)
    {
      // FIXME first check if the target file exists...
      _is = new std::ifstream( filename.c_str() );
    }

            virtual bool deserialize(PropertyBag &v)
            {
                using namespace std;
#if 0
                char begin_token, end_token;
      *_is >> begin_token;
                if(begin_token == '{')
                    cerr << "read begin";
#endif

                char c;
      while( _is->read(&c,1) )
                {
                    unsigned char name_length, value_length;
                    char name[256];
                    char value[256];
                    int intvalue;
                    double doublevalue;
      _is->read(reinterpret_cast<char*>(&name_length),1);
      _is->read(name,name_length);
                    name[name_length] = 0;
      _is->ignore();
      _is->read(reinterpret_cast<char*>(&value_length),1);
      _is->read(value,value_length);
                    switch(c)
                    {
                        case TYPECODE_BOOL:
                            if(value[0])
                                v.add(new Property<bool>(name,"",false));
                            else
                                v.add(new Property<bool>(name,"",true));
                            cerr << "bool: ";
          _is->ignore();
                            break;
                        case TYPECODE_CHAR:
                            v.add(new Property<char>(name,"",value[0]));
                            cerr << "char: ";
          _is->ignore();
                            break;
                        case TYPECODE_INT:
                            value[value_length]=0;
                            sscanf(value, "%d", &intvalue);
                            v.add(new Property<int>(name,"",intvalue));
                            cerr << "int: ";
          _is->ignore();
                            break;
                        case TYPECODE_DOUBLE:
                            value[value_length]=0;
                            sscanf(value, "%lf", &doublevalue);
                            v.add(new Property<double>(name,"",doublevalue));
                            cerr << "double: ";
          _is->ignore();
                            break;
                        case TYPECODE_STRING:
                            value[value_length]=0;
                            cerr << value<<"\n";
                            v.add(new Property<string>(name,"",value));
          _is->ignore();
                            cerr << "string: ";
                            break;
                        default:
                            cerr << "lost synchro" << endl;
                    }
                    cerr << "\n"<<(int)name_length<<"\n"<<name<<"\n"<<(int)value_length<<endl;
                }
#if 0
                for (
                    vector<PropertyBase*>::iterator i = v._properties.begin();
                    i != v._properties.end();
                    i++ )
                {
                    (*i)->serialize(*this);
                }
#endif
//                _os <<"</Bag>\n";

#if 0
      *_is >> end_token;
                if(end_token == '}')
                    cerr << "read end";
#endif
                return true;
            }

  protected:
    // Input stream
    input_stream * _is;


    };
}
#endif