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96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// File : SMESH_BoostTxtArchive.hxx
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// Created : Thu Aug 5 19:10:24 2021
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// Author : Edward AGAPOV (eap)
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#ifndef __SMESH_BoostTxtArchive_HXX__
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#define __SMESH_BoostTxtArchive_HXX__
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#include "SMESH_Utils.hxx"
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#include <boost/archive/text_iarchive.hpp>
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namespace SMESHUtils
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{
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/*!
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* \brief Load an object from a string created by boost::archive::text_oarchive.
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*
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* Try to workaround the issue that loading fails if the archive string
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* is created by a newer version of boost::archive library.
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*
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* Usage: ObjType obj; SMESHUtils::BoostTxtArchive( arcString ) >> obj;
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*/
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class SMESHUtils_EXPORT BoostTxtArchive
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{
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public:
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BoostTxtArchive( const std::string& s );
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BoostTxtArchive( std::istream& stream );
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~BoostTxtArchive();
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template< class T >
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BoostTxtArchive & operator>>( T & t )
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{
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if ( myArchiveReader )
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try
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{
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(*myArchiveReader) >> t;
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}
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catch (...)
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{
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if ( fixString() )
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try
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{
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(*myArchiveReader) >> t;
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}
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catch(...)
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{
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}
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}
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return *this;
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}
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private:
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void makeReader();
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bool fixString();
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boost::archive::text_iarchive* myArchiveReader;
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std::string myString; // archive to read
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bool myStringFixed; // is archive version changed
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std::istream* myStream; // stream holding myString
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bool myOwnStream; // is myStream created by me
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// persistence used to create a current version archive
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friend class boost::serialization::access;
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template<class Archive>
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void serialize(Archive & /*ar*/, const unsigned int /*version*/)
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{
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}
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};
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}
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#endif
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