PAL11563: Naming Policy. Add method HasDuplicatedGroupNamesMED() to check group names on duplications before export to MED.

idl/SMESH_Mesh.idl

@@ -336,6 +336,11 @@ module SMESH
     SMESH_MeshEditor GetMeshEditor()
       raises (SALOME::SALOME_Exception);
 
+    /*! Check group names for duplications.
+     *  Consider maximum group name length stored in MED file.
+     */
+    boolean HasDuplicatedGroupNamesMED();
+
     /*!
      * Export Mesh to different MED Formats
      * @params

src/SMESH/SMESH_Mesh.cxx

@@ -63,6 +63,9 @@
 
 #include "Utils_ExceptHandlers.hxx"
 
+// maximum stored group name length in MED file
+#define MAX_MED_GROUP_NAME_LENGTH 80
+
 #ifdef _DEBUG_
 static int MYDEBUG = 0;
 #else
@@ -746,11 +749,25 @@ throw(SALOME_Exception)
 }
 
 //=============================================================================
-/*!
- *
+/*! Export* methods.
+ *  To store mesh contents on disk in different formats.
  */
 //=============================================================================
 
+bool SMESH_Mesh::HasDuplicatedGroupNamesMED()
+{
+  set<string> aGroupNames;
+  for ( map<int, SMESH_Group*>::iterator it = _mapGroup.begin(); it != _mapGroup.end(); it++ ) {
+    SMESH_Group* aGroup = it->second;
+    string aGroupName = aGroup->GetName();
+    aGroupName.resize(MAX_MED_GROUP_NAME_LENGTH);
+    if (!aGroupNames.insert(aGroupName).second)
+      return true;
+  }
+
+  return false;
+}
+
 void SMESH_Mesh::ExportMED(const char *file, 
 			   const char* theMeshName, 
 			   bool theAutoGroups,
@@ -758,6 +775,7 @@ void SMESH_Mesh::ExportMED(const char *file,
   throw(SALOME_Exception)
 {
   Unexpect aCatch(SalomeException);
+
   DriverMED_W_SMESHDS_Mesh myWriter;
   myWriter.SetFile    ( file, MED::EVersion(theVersion) );
   myWriter.SetMesh    ( _myMeshDS   );
@@ -775,15 +793,28 @@ void SMESH_Mesh::ExportMED(const char *file,
     myWriter.AddGroupOfVolumes();
   }
 
+  // Pass groups to writer. Provide unique group names.
+  set<string> aGroupNames;
+  char aString [256];
+  int maxNbIter = 10000; // to guarantee cycle finish
   for ( map<int, SMESH_Group*>::iterator it = _mapGroup.begin(); it != _mapGroup.end(); it++ ) {
     SMESH_Group*       aGroup   = it->second;
     SMESHDS_GroupBase* aGroupDS = aGroup->GetGroupDS();
     if ( aGroupDS ) {
-      aGroupDS->SetStoreName( aGroup->GetName() );
+      string aGroupName0 = aGroup->GetName();
+      aGroupName0.resize(MAX_MED_GROUP_NAME_LENGTH);
+      string aGroupName = aGroupName0;
+      for (int i = 1; !aGroupNames.insert(aGroupName).second && i < maxNbIter; i++) {
+        sprintf(&aString[0], "GR_%d_%s", i, aGroupName0.c_str());
+        aGroupName = aString;
+        aGroupName.resize(MAX_MED_GROUP_NAME_LENGTH);
+      }
+      aGroupDS->SetStoreName( aGroupName.c_str() );
       myWriter.AddGroup( aGroupDS );
     }
   }
 
+  // Perform export
   myWriter.Perform();
 }
 

src/SMESH/SMESH_Mesh.hxx

@@ -150,7 +150,12 @@ public:
   const TopTools_ListOfShape& GetAncestors(const TopoDS_Shape& theSubShape) const;
   // return list of ancestors of theSubShape in the order
   // that lower dimention shapes come first.
-  
+
+  /*! Check group names for duplications.
+   *  Consider maximum group name length stored in MED file.
+   */
+  bool HasDuplicatedGroupNamesMED();
+
   void ExportMED(const char *file, 
 		 const char* theMeshName = NULL, 
 		 bool theAutoGroups = true, 

src/SMESH_I/SMESH_Mesh_i.hxx

@@ -132,12 +132,11 @@ public:
     throw (SALOME::SALOME_Exception);
 
   // --- C++ interface
-
   void SetImpl(::SMESH_Mesh* impl);
   ::SMESH_Mesh& GetImpl();         // :: force no namespace here
 
   SMESH_Gen_i* GetGen() { return _gen_i; }
-  
+
   int ImportUNVFile( const char* theFileName )
     throw (SALOME::SALOME_Exception);
 
@@ -150,6 +149,11 @@ public:
   SMESH::DriverMED_ReadStatus ImportMEDFile( const char* theFileName, const char* theMeshName )
     throw (SALOME::SALOME_Exception);
 
+  /*! Check group names for duplications.
+   *  Consider maximum group name length stored in MED file.
+   */
+  CORBA::Boolean HasDuplicatedGroupNamesMED();
+
   void ExportToMED( const char* file, CORBA::Boolean auto_groups, SMESH::MED_VERSION theVersion )
     throw (SALOME::SALOME_Exception);
   void ExportMED( const char* file, CORBA::Boolean auto_groups )