X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESHUtils%2FSMESH_BoostTxtArchive.cxx;fp=src%2FSMESHUtils%2FSMESH_BoostTxtArchive.cxx;h=9e29c547997106622252e281911f5660a35388bf;hp=0000000000000000000000000000000000000000;hb=ce0f1ae8e9e0e01d8f3518a6e224c0006518097c;hpb=cd4aa39efa97d2669eff4321a1b91ca347f81fd9

diff --git a/src/SMESHUtils/SMESH_BoostTxtArchive.cxx b/src/SMESHUtils/SMESH_BoostTxtArchive.cxx
new file mode 100644
index 000000000..9e29c5479
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+++ b/src/SMESHUtils/SMESH_BoostTxtArchive.cxx
@@ -0,0 +1,152 @@
+// 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.cxx
+// Created   : Thu Aug  5 21:19:31 2021
+// Author    : Edward AGAPOV (eap)
+
+#include "SMESH_BoostTxtArchive.hxx"
+
+#include <cctype>
+#include <sstream>
+#include <boost/archive/text_oarchive.hpp>
+
+
+using namespace SMESHUtils;
+
+BoostTxtArchive::BoostTxtArchive( const std::string& s ):
+  myArchiveReader( nullptr ),
+  myString( s ),
+  myStringFixed( false ),
+  myStream( nullptr ),
+  myOwnStream( true )
+{
+  myStream = new std::istringstream( myString );
+  makeReader();
+}
+
+BoostTxtArchive::BoostTxtArchive( std::istream& stream ):
+  myArchiveReader( nullptr ),
+  myStringFixed( false ),
+  myStream( &stream ),
+  myOwnStream( false )
+{
+  if ( std::istringstream * sstrm = dynamic_cast< std::istringstream* >( &stream ))
+    myString = sstrm->str();
+
+  makeReader();
+}
+
+BoostTxtArchive::~BoostTxtArchive()
+{
+  delete myArchiveReader; myArchiveReader = nullptr;
+  if ( myOwnStream )
+    delete myStream;
+}
+
+void BoostTxtArchive::makeReader()
+{
+  myArchiveReader = nullptr;
+  try
+  {
+    myArchiveReader = new boost::archive::text_iarchive( *myStream );
+  }
+  catch (...)
+  {
+    if ( fixString() )
+      try
+      {
+        myArchiveReader = new boost::archive::text_iarchive( *myStream );
+      }
+      catch(...)
+      {
+        myArchiveReader = nullptr;
+      }
+  }
+}
+
+namespace
+{
+  //================================================================================
+  /*!
+   * \brief Return archive created by current version of boost::archive
+   */
+  //================================================================================
+
+  std::string getCurrentVersionArchive( BoostTxtArchive & bta)
+  {
+    std::ostringstream strm;
+    boost::archive::text_oarchive archive( strm );
+    archive << bta;
+    return strm.str();
+  }
+}
+
+//================================================================================
+/*!
+ * \brief Change boost::archive library version in myString to be equal to
+ *        the current library version
+ *  \return bool - return true if the version is changed
+ */
+//================================================================================
+
+bool BoostTxtArchive::fixString()
+{
+  if ( myStringFixed )
+    return false;
+  myStringFixed = true;
+
+  const char*     sub = "serialization::archive ";
+  const size_t subLen = 23;
+
+  size_t where1 = myString.find( sub );
+  if ( where1 == std::string::npos )
+    return false;
+
+  std::string nowString = getCurrentVersionArchive( *this );
+  size_t where2 = nowString.find( sub );
+  if ( where2 == std::string::npos )
+    return false;
+
+  bool sameVersion = true;
+  for ( size_t i1 = where1 + subLen, i2 = where2 + subLen;
+        i2 < nowString.size();
+        ++i1, ++i2 )
+  {
+    if ( myString[ i1 ] != nowString[ i2 ] )
+    {
+      sameVersion = false;
+      myString[ i1 ] = nowString[ i2 ];
+    }
+    if ( isspace( myString[ i1 ]))
+      break;
+  }
+
+  if ( !sameVersion )
+  {
+    if ( myOwnStream )
+      delete myStream;
+    myStream    = new std::istringstream( myString );
+    myOwnStream = true;
+  }
+
+  return !sameVersion;
+}