Files
create/src/Base/Persistence.cpp

137 lines
4.4 KiB
C++

/***************************************************************************
* Copyright (c) 2011 Jürgen Riegel <juergen.riegel@web.de> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
#include <cassert>
#endif
#include "Exception.h"
#include "Reader.h"
#include "Writer.h"
/// Here the FreeCAD includes sorted by Base,App,Gui......
#include "Persistence.h"
using namespace Base;
TYPESYSTEM_SOURCE_ABSTRACT(Base::Persistence,Base::BaseClass)
//**************************************************************************
// Construction/Destruction
//**************************************************************************
// separator for other implementation aspects
unsigned int Persistence::getMemSize () const
{
// you have to implement this method in all descending classes!
assert(0);
return 0;
}
void Persistence::Save (Writer &/*writer*/) const
{
// you have to implement this method in all descending classes!
assert(0);
}
void Persistence::Restore(XMLReader &/*reader*/)
{
// you have to implement this method in all descending classes!
assert(0);
}
void Persistence::SaveDocFile (Writer &/*writer*/) const
{
}
void Persistence::RestoreDocFile(Reader &/*reader*/)
{
}
std::string Persistence::encodeAttribute(const std::string& str)
{
std::string tmp;
for (char it : str) {
if (it == '<')
tmp += "&lt;";
else if (it == '\"')
tmp += "&quot;";
else if (it == '\'')
tmp += "&apos;";
else if (it == '&')
tmp += "&amp;";
else if (it == '>')
tmp += "&gt;";
else if (it == '\r')
tmp += "&#13;";
else if (it == '\n')
tmp += "&#10;";
else if (it == '\t')
tmp += "&#9;";
else
tmp += it;
}
return tmp;
}
void Persistence::dumpToStream(std::ostream& stream, int compression)
{
//we need to close the zipstream to get a good result, the only way to do this is to delete the ZipWriter.
//Hence the scope...
{
//create the writer
Base::ZipWriter writer(stream);
writer.setLevel(compression);
writer.putNextEntry("Persistence.xml");
writer.setMode("BinaryBrep");
//save the content (we need to encapsulate it with xml tags to be able to read single element xmls like happen for properties)
writer.Stream() << "<Content>" << std::endl;
Save(writer);
writer.Stream() << "</Content>";
writer.writeFiles();
}
}
void Persistence::restoreFromStream(std::istream& stream)
{
zipios::ZipInputStream zipstream(stream);
Base::XMLReader reader("", zipstream);
if (!reader.isValid())
throw Base::ValueError("Unable to construct reader");
reader.readElement("Content");
Restore(reader);
reader.readFiles(zipstream);
restoreFinished();
}