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parameterlist/test/XML/cxx_main.cpp
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00041 
00042 #include "Teuchos_ConfigDefs.hpp"
00043 #include "Teuchos_XMLObject.hpp"
00044 #include "Teuchos_GlobalMPISession.hpp"
00045 #include "Teuchos_StringInputSource.hpp"
00046 #include "Teuchos_FileInputSource.hpp"
00047 #include "Teuchos_Version.hpp"
00048 
00049 
00050 using std::string;
00051 using Teuchos::XMLObject;
00052 using Teuchos::StringInputSource;
00053 using Teuchos::FileInputSource;
00054 
00055 /* Test of Teuchos XML handling classes */
00056 
00057 int main(int argc, char** argv)
00058 {
00059   std::cout << Teuchos::Teuchos_Version() << std::endl << std::endl;
00060 
00061   Teuchos::GlobalMPISession mpiSession(&argc, &argv);
00062 
00063   try
00064    {
00065       /* create an XML object */
00066       XMLObject problem("Problem");
00067       XMLObject solver("Solver");
00068       XMLObject prec("Preconditioner");
00069 
00070       solver.addAttribute("type", "gmres");
00071       solver.addInt("maxiters", 1000);
00072       solver.addInt("restarts", 100);
00073       solver.addDouble("tol", 1.0e-10);
00074 
00075       solver.addChild(prec);
00076 
00077       prec.addAttribute("type", "ILUk");
00078       prec.addInt("k", 2);
00079 
00080       problem.addChild(solver);
00081 
00082       int foundIndex  = problem.findFirstChild("Solver");
00083       if(foundIndex == -1)
00084       {
00085         std::cerr << "Find child didn't find the child!"
00086           <<std::endl << std::endl;
00087         return -1;
00088       }
00089 
00090       const XMLObject foundChild = problem.getChild(foundIndex);
00091       if(foundChild.getTag() != solver.getTag())
00092       {
00093         std::cerr << "Find child found the wrong tag!" << std::endl <<
00094           "Found index was: " << foundIndex << std::endl <<
00095           std::endl << std::endl;
00096         return -1;
00097       }
00098 
00099       if(problem.findFirstChild("NON EXSISTENT CHILD") != -1){
00100         std::cerr << "First first child didn't return -1 when it was "
00101           "suppose to!" <<std::endl << std::endl;
00102         return -1;
00103       }
00104 
00105       std::string str = problem.toString();
00106       std::cerr << str << std::endl;
00107 
00108       /* parse XML in a std::string */
00109       StringInputSource src(str);
00110       XMLObject reread = src.getObject();
00111       
00112       std::cerr << reread << std::endl;
00113 
00114       /* write to a file, and then read and parse the file */
00115       std::ofstream of("tmp.xml");
00116       of << reread << std::endl;
00117       
00118       FileInputSource fileSrc("tmp.xml");
00119       XMLObject fileXML = fileSrc.getObject();
00120       
00121       std::cerr << fileXML << std::endl;
00122 
00123       return 0;
00124     }
00125   catch(std::exception& e)
00126     {
00127       std::cerr << e.what() << std::endl;
00128     }
00129 }
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