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00042 #include "NOX_LineSearch_Factory.H"
00043
00044 #include "Teuchos_ParameterList.hpp"
00045 #include "NOX_GlobalData.H"
00046 #include "NOX_Common.H"
00047
00048
00049 #include "NOX_LineSearch_FullStep.H"
00050 #include "NOX_LineSearch_Backtrack.H"
00051 #include "NOX_LineSearch_Polynomial.H"
00052 #include "NOX_LineSearch_MoreThuente.H"
00053 #include "NOX_LineSearch_NonlinearCG.H"
00054 #include "NOX_LineSearch_UserDefinedFactory.H"
00055
00056
00057
00058 NOX::LineSearch::Factory::Factory()
00059 {
00060
00061 }
00062
00063
00064
00065 NOX::LineSearch::Factory::~Factory()
00066 {
00067
00068 }
00069
00070
00071
00072 Teuchos::RCP<NOX::LineSearch::Generic> NOX::LineSearch::Factory::
00073 buildLineSearch(const Teuchos::RCP<NOX::GlobalData>& gd,
00074 Teuchos::ParameterList& params)
00075 {
00076
00077 Teuchos::RCP<NOX::LineSearch::Generic> line_search;
00078
00079 std::string method = params.get("Method", "Full Step");
00080
00081 if (method == "Full Step")
00082 line_search = Teuchos::rcp(new FullStep(gd, params));
00083 else if (method == "Backtrack")
00084 line_search = Teuchos::rcp(new Backtrack(gd, params));
00085 else if (method == "Polynomial")
00086 line_search = Teuchos::rcp(new Polynomial(gd, params));
00087 else if (method == "More'-Thuente")
00088 line_search = Teuchos::rcp(new MoreThuente(gd, params));
00089 else if (method == "NonlinearCG")
00090 line_search = Teuchos::rcp(new NonlinearCG(gd, params));
00091 else if (method == "User Defined") {
00092 using namespace Teuchos;
00093 if (isParameterType< RCP<NOX::LineSearch::UserDefinedFactory> >
00094 (params, "User Defined Line Search Factory")) {
00095
00096 RCP<NOX::LineSearch::UserDefinedFactory> user_factory =
00097 getParameter< Teuchos::RCP<NOX::LineSearch::UserDefinedFactory> >
00098 (params, "User Defined Line Search Factory");
00099
00100 line_search = user_factory->buildLineSearch(gd, params);
00101 }
00102 else {
00103 std::string msg = "Error - NOX::LineSearch::Factory::buildLineSearch() - a \"User Defined\" line search was chosen for the \"Method\" in the \"Line Search\" sublist, but a Teuchos::RCP<NOX::LineSearch::UserDefinedFactory> object was not found in the parameter list!";
00104 TEST_FOR_EXCEPTION(true, std::logic_error, msg);
00105 }
00106 }
00107 else {
00108 std::string msg = "Error - NOX::LineSearch::Facotry::buildLineSearch() - Invalid choice for \"Method\" in \"Line Search\" sublist!";
00109 TEST_FOR_EXCEPTION(true, std::logic_error, msg);
00110 }
00111
00112 return line_search;
00113 }
00114
00115
00116
00117
00118 Teuchos::RCP<NOX::LineSearch::Generic> NOX::LineSearch::
00119 buildLineSearch(const Teuchos::RCP<NOX::GlobalData>& gd,
00120 Teuchos::ParameterList& params)
00121 {
00122 NOX::LineSearch::Factory factory;
00123 return factory.buildLineSearch(gd, params);
00124 }
00125
00126
00127