SinexBlock.hpp

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//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk 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 3.0 of the License, or
//  any later version.
//
//  The GNSSTk 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 GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
//
//==============================================================================
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin, under contract to an agency or agencies
//  within the U.S. Department of Defense. The U.S. Government retains all
//  rights to use, duplicate, distribute, disclose, or release this software.
//
//  Pursuant to DoD Directive 523024
//
//  DISTRIBUTION STATEMENT A: This software has been approved for public
//                            release, distribution is unlimited.
//
//==============================================================================
 
#ifndef GNSSTK_SINEXBLOCK_HPP
#define GNSSTK_SINEXBLOCK_HPP
 
#include <vector>
#include <map>
#include "SinexBase.hpp"
#include "SinexTypes.hpp"
 
namespace gnsstk
{
   namespace Sinex
   {
 
 
      class BlockBase
      {
            /* Sinex:Data calls the protected putBlock() and
             * getBlock() methods. */
         friend class Data;
 
      public:
 
         virtual ~BlockBase() {}
 
         std::string  comment;
 
         virtual std::string  getTitle() const = 0;
 
         virtual size_t  getSize() const = 0;
 
      protected:
 
         virtual size_t putBlock(Sinex::Stream& s) const = 0;
 
         virtual size_t getBlock(Sinex::Stream& s) = 0;
 
      }; // class BlockBase
 
 
      template<class T>
      class Block : public BlockBase
      {
      public:
 
         virtual ~Block() {}
 
         static BlockBase* create() { return new Block<T>; }
 
         std::string  getTitle() const { return T::BLOCK_TITLE; }
 
         size_t  getSize() const { return dataVec.size(); }
 
         void push_back(const T& x) { dataVec.push_back(x); }
 
         std::vector<T>& getData() { return dataVec; }
 
      protected:
 
         std::vector<T>  dataVec;  // Data storage
 
         virtual size_t putBlock(Sinex::Stream& s) const
         {
            size_t  lineNum = 0;
            typename std::vector<T>::const_iterator  i = dataVec.begin();
            for ( ; i != dataVec.end(); ++i, ++lineNum)
            {
               try
               {
                  const Sinex::DataType&  d = *i;
                  s << (std::string)d << std::endl;
               }
               catch (Exception& exc)
               {
                  FFStreamError  err(exc);
                  GNSSTK_THROW(err);
               }
            }
            return lineNum;
         };
 
         virtual size_t getBlock(Sinex::Stream& s)
         {
            size_t  lineNum = 0;
            char    c;
            while (s.good() )
            {
               c = s.get();
               if (s.good() )
               {
                  if (c == DATA_START)
                  {
                     std::string  line;
                     s.formattedGetLine(line);
                     try
                     {
                        dataVec.push_back(
                           T(line.insert( (size_t)0, (size_t)1, c),
                             lineNum) );
                     }
                     catch (Exception& exc)
                     {
                        FFStreamError  err(exc);
                        GNSSTK_THROW(err);
                     }
                     ++lineNum;
                  }
                  else
                  {
                     s.putback(c);
                     break;
                  }
               }
            }
            return lineNum;
         };
 
      }; // class Block<T>
 
 
      typedef std::vector<const BlockBase*>  Blocks;
 
      typedef Blocks::iterator  BlockIter;
 
      typedef BlockBase* (*BlockCreateFunc)();
 
      typedef std::map<std::string, BlockCreateFunc>  BlockFactory;
 
 
   }  // namespace Sinex
 
}  // namespace gnsstk
 
#endif // GNSSTK_SINEXBLOCK_HPP