X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESHUtils%2FSMESH_BoostTxtArchive.hxx;fp=src%2FSMESHUtils%2FSMESH_BoostTxtArchive.hxx;h=cb5071f697a8eea5189dab0bc3e51b9362828013;hp=0000000000000000000000000000000000000000;hb=ce0f1ae8e9e0e01d8f3518a6e224c0006518097c;hpb=cd4aa39efa97d2669eff4321a1b91ca347f81fd9

diff --git a/src/SMESHUtils/SMESH_BoostTxtArchive.hxx b/src/SMESHUtils/SMESH_BoostTxtArchive.hxx
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+// Copyright (C) 2007-2021  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library 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 2.1 of the License, or (at your option) any later version.
+//
+// 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 Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+// File      : SMESH_BoostTxtArchive.hxx
+// Created   : Thu Aug  5 19:10:24 2021
+// Author    : Edward AGAPOV (eap)
+
+
+#ifndef __SMESH_BoostTxtArchive_HXX__
+#define __SMESH_BoostTxtArchive_HXX__
+
+#include "SMESH_Utils.hxx"
+
+#include <boost/archive/text_iarchive.hpp>
+
+namespace SMESHUtils
+{
+  /*!
+   * \brief Load an object from a string created by boost::archive::text_oarchive.
+   *
+   * Try to workaround the issue that loading fails if the archive string
+   * is created by a newer version of boost::archive library.
+   *
+   * Usage: ObjType obj;  BoostTxtArchive( arcString ) >> obj;
+   */
+  class SMESHUtils_EXPORT BoostTxtArchive
+  {
+  public:
+
+    BoostTxtArchive( const std::string& s );
+    BoostTxtArchive( std::istream& stream );
+    ~BoostTxtArchive();
+
+    template< class T >
+      BoostTxtArchive & operator>>( T & t )
+    {
+      if ( myArchiveReader )
+        try
+        {
+          (*myArchiveReader) >> t;
+        }
+        catch (...)
+        {
+          if ( fixString() )
+            try
+            {
+              (*myArchiveReader) >> t;
+            }
+            catch(...)
+            {
+            }
+        }
+      return *this;
+    }
+
+  private:
+
+    void makeReader();
+    bool fixString();
+
+    boost::archive::text_iarchive* myArchiveReader;
+    std::string                    myString;        // archive to read
+    bool                           myStringFixed;   // is archive version changed
+    std::istream*                  myStream;        // stream holding myString
+    bool                           myOwnStream;     // is myStream created by me
+
+    // persistence used to create a current version archive
+    friend class boost::serialization::access;
+    template<class Archive>
+      void serialize(Archive & /*ar*/, const unsigned int /*version*/)
+    {
+    }
+  };
+}
+
+
+#endif