Teuchos_XMLParameterListHelpers.cpp

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00002 // ***********************************************************************
00003 // 
00004 //                    Teuchos: Common Tools Package
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #include "Teuchos_XMLParameterListHelpers.hpp"
00030 #include "Teuchos_FileInputSource.hpp"
00031 #include "Teuchos_StringInputSource.hpp"
00032 #include "Teuchos_XMLParameterListReader.hpp"
00033 #include "Teuchos_XMLParameterListWriter.hpp"
00034 
00035 
00036 void Teuchos::updateParametersFromXmlFile(
00037   const std::string &xmlFileName,
00038   Teuchos::ParameterList *paramList
00039   )
00040 {
00041   TEST_FOR_EXCEPT(paramList==NULL);
00042   Teuchos::XMLParameterListReader xmlPLReader;
00043   Teuchos::FileInputSource xmlFile(xmlFileName);
00044   Teuchos::XMLObject xmlParams = xmlFile.getObject();
00045   paramList->setParameters(xmlPLReader.toParameterList(xmlParams));
00046 }
00047 
00048 
00049 Teuchos::RCP<Teuchos::ParameterList>
00050 Teuchos::getParametersFromXmlFile( const std::string &xmlFileName )
00051 {
00052   RCP<ParameterList> pl = parameterList();
00053   updateParametersFromXmlFile( xmlFileName, &*pl );
00054   return pl;
00055 }
00056 
00057 void Teuchos::updateParametersFromXmlString(
00058   const std::string &xmlStr,
00059   Teuchos::ParameterList *paramList
00060   )
00061 {
00062   TEST_FOR_EXCEPT(paramList==NULL);
00063   Teuchos::XMLParameterListReader xmlPLReader;
00064   Teuchos::StringInputSource xmlStrSrc(xmlStr);
00065   Teuchos::XMLObject xmlParams = xmlStrSrc.getObject();
00066   paramList->setParameters(xmlPLReader.toParameterList(xmlParams));
00067 }
00068 
00069 
00070 Teuchos::RCP<Teuchos::ParameterList>
00071 Teuchos::getParametersFromXmlString( const std::string &xmlStr )
00072 {
00073   RCP<ParameterList> pl = parameterList();
00074   updateParametersFromXmlString( xmlStr, &*pl );
00075   return pl;
00076 }
00077 
00078 
00079 void Teuchos::writeParameterListToXmlOStream(
00080   const Teuchos::ParameterList &paramList,
00081   std::ostream &xmlOut
00082   )
00083 {
00084   Teuchos::XMLParameterListWriter plWriter;
00085   Teuchos::XMLObject xml = plWriter.toXML(paramList);
00086   xmlOut << xml << std::endl;
00087 }
00088 
00089 
00090 void Teuchos::writeParameterListToXmlFile(
00091   const Teuchos::ParameterList &paramList,
00092   const std::string &xmlFileName
00093   )
00094 {
00095   std::ofstream ofs(xmlFileName.c_str());
00096   writeParameterListToXmlOStream(paramList,ofs);
00097 }
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