Issue 0020540: EDF 1143 SMESH: Error at load script if the NETGENPlugin module is not installed

src/SMESH_SWIG/smeshDC.py

@@ -108,6 +108,38 @@ except ImportError:
     noNETGENPlugin = 1
     pass
 
+# import GHS3DPlugin module if possible
+noGHS3DPlugin = 0
+try:
+    import GHS3DPlugin
+except ImportError:
+    noGHS3DPlugin = 1
+    pass
+
+# import GHS3DPRLPlugin module if possible
+noGHS3DPRLPlugin = 0
+try:
+    import GHS3DPRLPlugin
+except ImportError:
+    noGHS3DPRLPlugin = 1
+    pass
+
+# import HexoticPlugin module if possible
+noHexoticPlugin = 0
+try:
+    import HexoticPlugin
+except ImportError:
+    noHexoticPlugin = 1
+    pass
+
+# import BLSURFPlugin module if possible
+noBLSURFPlugin = 0
+try:
+    import BLSURFPlugin
+except ImportError:
+    noBLSURFPlugin = 1
+    pass
+
 ## @addtogroup l1_auxiliary
 ## @{
 
@@ -403,6 +435,25 @@ def TreatHypoStatus(status, hypName, geomName, isAlgo):
         print hypName, "was not assigned to",geomName,":", reason
         pass
 
+## Check meshing plugin availability
+def CheckPlugin(plugin):
+    if plugin == NETGEN and noNETGENPlugin:
+        print "Warning: NETGENPlugin module unavailable"
+        return False
+    elif plugin == GHS3D and noGHS3DPlugin:
+        print "Warning: GHS3DPlugin module unavailable"
+        return False
+    elif plugin == GHS3DPRL and noGHS3DPRLPlugin:
+        print "Warning: GHS3DPRLPlugin module unavailable"
+        return False
+    elif plugin == Hexotic and noHexoticPlugin:
+        print "Warning: HexoticPlugin module unavailable"
+        return False
+    elif plugin == BLSURF and noBLSURFPlugin:
+        print "Warning: BLSURFPlugin module unavailable"
+        return False
+    return True
+    
 # end of l1_auxiliary
 ## @}
 
@@ -3996,19 +4047,15 @@ class Mesh_Triangle(Mesh_Algorithm):
             self.Create(mesh, geom, "MEFISTO_2D")
             pass
         elif algoType == BLSURF:
-            import BLSURFPlugin
+            CheckPlugin(BLSURF)
             self.Create(mesh, geom, "BLSURF", "libBLSURFEngine.so")
             #self.SetPhysicalMesh() - PAL19680
         elif algoType == NETGEN:
-            if noNETGENPlugin:
+            CheckPlugin(NETGEN)
-                print "Warning: NETGENPlugin module unavailable"
-                pass
             self.Create(mesh, geom, "NETGEN_2D", "libNETGENEngine.so")
             pass
         elif algoType == NETGEN_2D:
-            if noNETGENPlugin:
+            CheckPlugin(NETGEN)
-                print "Warning: NETGENPlugin module unavailable"
-                pass
             self.Create(mesh, geom, "NETGEN_2D_ONLY", "libNETGENEngine.so")
             pass
 
@@ -4311,22 +4358,22 @@ class Mesh_Tetrahedron(Mesh_Algorithm):
         Mesh_Algorithm.__init__(self)
 
         if algoType == NETGEN:
+            CheckPlugin(NETGEN)
             self.Create(mesh, geom, "NETGEN_3D", "libNETGENEngine.so")
             pass
 
         elif algoType == FULL_NETGEN:
-            if noNETGENPlugin:
+            CheckPlugin(NETGEN)
-                print "Warning: NETGENPlugin module has not been imported."
             self.Create(mesh, geom, "NETGEN_2D3D", "libNETGENEngine.so")
             pass
 
         elif algoType == GHS3D:
-            import GHS3DPlugin
+            CheckPlugin(GHS3D)
             self.Create(mesh, geom, "GHS3D_3D" , "libGHS3DEngine.so")
             pass
 
         elif algoType == GHS3DPRL:
-            import GHS3DPRLPlugin
+            CheckPlugin(GHS3DPRL)
             self.Create(mesh, geom, "GHS3DPRL_3D" , "libGHS3DPRLEngine.so")
             pass
 
@@ -4562,7 +4609,7 @@ class Mesh_Hexahedron(Mesh_Algorithm):
             pass
 
         elif algoType == Hexotic:
-            import HexoticPlugin
+            CheckPlugin(Hexotic)
             self.Create(mesh, geom, "Hexotic_3D", "libHexoticEngine.so")
             pass
 
@@ -4595,8 +4642,7 @@ class Mesh_Netgen(Mesh_Algorithm):
     def __init__(self, mesh, is3D, geom=0):
         Mesh_Algorithm.__init__(self)
 
-        if noNETGENPlugin:
+        CheckPlugin(NETGEN)
-            print "Warning: NETGENPlugin module has not been imported."
 
         self.is3D = is3D
         if is3D:
@@ -5159,7 +5205,7 @@ class NumberOfSegments(StdMeshers._objref_StdMeshers_NumberOfSegments):
 #Registering the new proxy for NumberOfSegments
 omniORB.registerObjref(StdMeshers._objref_StdMeshers_NumberOfSegments._NP_RepositoryId, NumberOfSegments)
 
-
+if not noNETGENPlugin:
     #Wrapper class for NETGENPlugin_Hypothesis hypothesis
     class NETGENPlugin_Hypothesis(NETGENPlugin._objref_NETGENPlugin_Hypothesis):
 
@@ -5264,6 +5310,8 @@ class NETGEN_SimpleParameters_3D(NETGEN_SimpleParameters_2D,NETGENPlugin._objref
     #Registering the new proxy for NETGEN_SimpleParameters_3D
     omniORB.registerObjref(NETGENPlugin._objref_NETGENPlugin_SimpleHypothesis_3D._NP_RepositoryId, NETGEN_SimpleParameters_3D)
 
+    pass # if not noNETGENPlugin:
+
 class Pattern(SMESH._objref_SMESH_Pattern):
 
     def ApplyToMeshFaces(self, theMesh, theFacesIDs, theNodeIndexOnKeyPoint1, theReverse):