use gzip compression in WriteModelToMpsFile in Java/Python/.Net

Defaults to false (no compression).
omer-candan · Nov 12, 2024 · 1ab2658 · 1ab2658
1 parent 98da690
commit 1ab2658
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Showing 3 changed files with 7 additions and 4 deletions.
diff --git a/ortools/linear_solver/csharp/linear_solver.i b/ortools/linear_solver/csharp/linear_solver.i
@@ -167,7 +167,7 @@ CONVERT_VECTOR(operations_research::MPVariable, MPVariable)
 %unignore operations_research::MPSolver::ExportModelAsLpFormat(bool);
 %unignore operations_research::MPSolver::ExportModelAsMpsFormat(bool, bool);
 %unignore operations_research::MPSolver::WriteModelToMpsFile(
-  const std::string& filename, bool, bool);
+  const std::string& filename, bool, bool, bool);
 %unignore operations_research::MPSolver::SetHint(
     const std::vector<operations_research::MPVariable*>&,
     const std::vector<double>&);
@@ -190,9 +190,10 @@ CONVERT_VECTOR(operations_research::MPVariable, MPVariable)
   }
 
   bool WriteModelToMpsFile(const std::string& filename, bool fixed_format,
-                           bool obfuscated) {
+                           bool obfuscated, bool use_gzip_compression = false) {
     operations_research::MPModelExportOptions options;
     options.obfuscate = obfuscated;
+    options.use_gzip_compression = use_gzip_compression;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return WriteModelToMpsFile(filename, model, options).ok();

diff --git a/ortools/linear_solver/java/linear_solver.i b/ortools/linear_solver/java/linear_solver.i
@@ -211,9 +211,10 @@ PROTO2_RETURN(
    * Write the loaded model to file in MPS format.
    */
    bool writeModelToMpsFile(const std::string& filename, bool fixed_format,
-                            bool obfuscate) {
+                            bool obfuscate, bool use_gzip_compression=false) {
     operations_research::MPModelExportOptions options;
     options.obfuscate = obfuscate;
+    options.use_gzip_compression = use_gzip_compression;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return WriteModelToMpsFile(filename, model, options).ok();

diff --git a/ortools/linear_solver/python/linear_solver.i b/ortools/linear_solver/python/linear_solver.i
@@ -144,9 +144,10 @@ from ortools.linear_solver.python.linear_solver_natural_api import VariableExpr
   }
 
   bool WriteModelToMpsFile(const std::string& filename, bool fixed_format,
-                          bool obfuscate) {
+                          bool obfuscate, bool use_gzip_compression=false) {
     operations_research::MPModelExportOptions options;
     options.obfuscate = obfuscate;
+    options.use_gzip_compression = use_gzip_compression;
     operations_research::MPModelProto model;
     $self->ExportModelToProto(&model);
     return WriteModelToMpsFile(filename, model, options).ok();