src/FDM/JSBSim/input_output/FGXMLFileRead.h

   1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2
   3  Module:       FGXMLFileRead.h
   4  Author:       Jon S. Berndt
   5  Date started: 02/04/07
   6  Purpose:      Shared base class that wraps the XML file reading logic
   7
   8  ------------- Copyright (C) 2007  Jon S. Berndt (jon@jsbsim.org) -------------
   9
  10  This program is free software; you can redistribute it and/or modify it under
  11  the terms of the GNU Lesser General Public License as published by the Free Software
  12  Foundation; either version 2 of the License, or (at your option) any later
  13  version.
  14
  15  This program is distributed in the hope that it will be useful, but WITHOUT
  16  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  17  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  18  details.
  19
  20  You should have received a copy of the GNU Lesser General Public License along with
  21  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  22  Place - Suite 330, Boston, MA  02111-1307, USA.
  23
  24  Further information about the GNU Lesser General Public License can also be found on
  25  the world wide web at http://www.gnu.org.
  26
  27 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  28 SENTRY
  29 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  30
  31 #ifndef FGXMLFILEREAD_HEADER_H
  32 #define FGXMLFILEREAD_HEADER_H
  33
  34 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 INCLUDES
  36 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  37
  38 #include "input_output/FGXMLParse.h"
  39 #include <iostream>
  40 #include <fstream>
  41
  42 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  43 DEFINITIONS
  44 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  45
  46 #define ID_XMLFILEREAD "$Id: FGXMLFileRead.h,v 1.5 2009/11/28 20:12:47 andgi Exp $"
  47
  48 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  49 FORWARD DECLARATIONS
  50 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  51
  52 namespace JSBSim {
  53
  54 class FGXMLFileRead {
  55 public:
  56   FGXMLFileRead(void) {}
  57   ~FGXMLFileRead(void) {}
  58
  59 protected:
  60   Element* document;
  61   Element* LoadXMLDocument(std::string XML_filename)
  62   {
  63     std::ifstream infile;
  64
  65     if ( !XML_filename.empty() ) {
  66       if (XML_filename.find(".xml") == std::string::npos) XML_filename += ".xml";
  67       infile.open(XML_filename.c_str());
  68       if ( !infile.is_open()) {
  69         std::cerr << "Could not open file: " << XML_filename << std::endl;
  70         return 0L;
  71       }
  72     } else {
  73       std::cerr << "No filename given." << std::endl;
  74       return 0L;
  75     }
  76
  77     readXML(infile, file_parser, XML_filename);
  78     document = file_parser.GetDocument();
  79     infile.close();
  80
  81     return document;
  82   }
  83
  84   void ResetParser(void) {file_parser.reset();}
  85
  86 private:
  87   FGXMLParse file_parser;
  88 };
  89 }
  90 #endif