revamp non C++ MPSolver export methods

ortools/java/com/google/ortools/Loader.java

@@ -119,9 +119,9 @@ public class Loader {
         Path tempPath = unpackNativeResources(resourceURI);
         // Load the native library
         System.load(tempPath.resolve(RESOURCE_PATH)
-                        .resolve(System.mapLibraryName("jniortools"))
-                        .toAbsolutePath()
-                        .toString());
+                .resolve(System.mapLibraryName("jniortools"))
+                .toAbsolutePath()
+                .toString());
         loaded = true;
       } catch (IOException e) {
         throw new RuntimeException(e);

ortools/linear_solver/java/LinearSolverTest.java

@@ -520,15 +520,9 @@ public final class LinearSolverTest {
     final MPConstraint c0 = solver.makeConstraint(-infinity, 100.0);
     c0.setCoefficient(x1, 5);
 
-    final MPModelExportOptions obfuscate = new MPModelExportOptions();
-    obfuscate.setObfuscate(true);
-    String out = solver.exportModelAsLpFormat();
+    String out = solver.exportModelAsLpFormat(/* obfuscate= */ true);
     assertThat(out).isNotEmpty();
-    out = solver.exportModelAsLpFormat(obfuscate);
-    assertThat(out).isNotEmpty();
-    out = solver.exportModelAsMpsFormat();
-    assertThat(out).isNotEmpty();
-    out = solver.exportModelAsMpsFormat(obfuscate);
+    out = solver.exportModelAsMpsFormat(/* fixed_format= */ true, /* obfuscate= */ true);
     assertThat(out).isNotEmpty();
   }
 
@@ -543,9 +537,9 @@ public final class LinearSolverTest {
     assertNotNull(solver);
     // Test that forbidden names are renamed.
     solver.makeBoolVar("<-%$#!&~-+ ⌂"); // Some illegal name.
-    String out = solver.exportModelAsLpFormat();
+    String out = solver.exportModelAsLpFormat(/* obfuscate= */ false);
     assertThat(out).isNotEmpty();
-    out = solver.exportModelAsMpsFormat();
+    out = solver.exportModelAsMpsFormat(/* fixed_format= */ true, /* obfuscate= */ true);
     assertThat(out).isNotEmpty();
   }
 
@@ -611,7 +605,7 @@ public final class LinearSolverTest {
     System.out.println("Number of constraints = " + solver.numConstraints());
 
     solver.enableOutput();
-    System.out.println(solver.exportModelAsLpFormat());
+    System.out.println(solver.exportModelAsLpFormat(/* obfuscate= */ false));
     System.out.println(solver.solve());
   }
 

ortools/linear_solver/java/linear_solver.i

@@ -188,9 +188,9 @@ PROTO2_RETURN(
   /**
    * Export the loaded model in LP format.
    */
-  std::string exportModelAsLpFormat(
-      const operations_research::MPModelExportOptions& options =
-          operations_research::MPModelExportOptions()) {
+  std::string exportModelAsLpFormat(bool obfuscate) {
+    operations_research::MPModelExportOptions options;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return ExportModelAsLpFormat(model, options).value_or("");
@@ -199,21 +199,21 @@ PROTO2_RETURN(
   /**
    * Export the loaded model in MPS format.
    */
-  std::string exportModelAsMpsFormat(
-      const operations_research::MPModelExportOptions& options =
-          operations_research::MPModelExportOptions()) {
+  std::string exportModelAsMpsFormat(bool fixed_format, bool obfuscate) {
+    operations_research::MPModelExportOptions options;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return ExportModelAsMpsFormat(model, options).value_or("");
   }
 
   /**
-   * Write the model to file in MPS format.
+   * Write the loaded model to file in MPS format.
    */
    bool writeModelToMpsFile(const std::string& filename, bool fixed_format,
-                            bool obfuscated) {
+                            bool obfuscate) {
     operations_research::MPModelExportOptions options;
-    options.obfuscate = obfuscated;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return WriteModelToMpsFile(filename, model, options).ok();

ortools/linear_solver/linear_solver.cc

@@ -1154,7 +1154,7 @@ void MPSolver::SolveLazyMutableRequest(LazyMutableCopy<MPModelRequest> request,
       // not arbitrary, as we want to maintain any custom thread options set by
       // the user. They shouldn't matter for polling, but for solving we might
       // e.g. use a larger stack.
-      ThreadPool thread_pool("SolverThread", /*num_threads=*/1);
+      ThreadPool thread_pool(/*num_threads=*/1);
       thread_pool.StartWorkers();
       thread_pool.Schedule(polling_func);
 

ortools/linear_solver/python/linear_solver.i

@@ -127,26 +127,26 @@ from ortools.linear_solver.python.linear_solver_natural_api import VariableExpr
     return status.ok();
   }
 
-  std::string ExportModelAsLpFormat(bool obfuscated) {
+  std::string ExportModelAsLpFormat(bool obfuscate) {
     operations_research::MPModelExportOptions options;
-    options.obfuscate = obfuscated;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return ExportModelAsLpFormat(model, options).value_or("");
   }
 
-  std::string ExportModelAsMpsFormat(bool fixed_format, bool obfuscated) {
+  std::string ExportModelAsMpsFormat(bool fixed_format, bool obfuscate) {
     operations_research::MPModelExportOptions options;
-    options.obfuscate = obfuscated;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return ExportModelAsMpsFormat(model, options).value_or("");
   }
 
-   bool WriteModelToMpsFile(const std::string& filename, bool fixed_format,
-                            bool obfuscated) {
+  bool WriteModelToMpsFile(const std::string& filename, bool fixed_format,
+                          bool obfuscate) {
     operations_research::MPModelExportOptions options;
-    options.obfuscate = obfuscated;
+    options.obfuscate = obfuscate;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return WriteModelToMpsFile(filename, model, options).ok();
@@ -374,8 +374,9 @@ PY_CONVERT(MPVariable);
 %rename (LookupVariable) operations_research::MPSolver::LookupVariableOrNull;
 %unignore operations_research::MPSolver::SetSolverSpecificParametersAsString;
 %unignore operations_research::MPSolver::NextSolution;
-// ExportModelAsLpFormat() is also visible: it's overridden by an %extend, above.
-// ExportModelAsMpsFormat() is also visible: it's overridden by an %extend, above.
+%unignore  operations_research::MPSolver::ExportModelAsLpFormat;
+%unignore  operations_research::MPSolver::ExportModelAsMpsFormat;
+%unignore  operations_research::MPSolver::WriteModelToMpsFile;
 %unignore operations_research::MPSolver::Write;
 
 // Expose very advanced parts of the MPSolver API. For expert users only.