----------------------------------------------------------
----------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--                           O C A R I N A . P N                            --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--               Copyright (C) 2006-2007, GET-Telecom Paris.                --
--                                                                          --
-- Ocarina  is free software;  you  can  redistribute  it and/or  modify    --
-- it under terms of the GNU General Public License as published by the     --
-- Free Software Foundation; either version 2, or (at your option) any      --
-- later version. Ocarina is distributed  in  the  hope  that it will be    --
-- useful, but WITHOUT ANY WARRANTY;  without even the implied warranty of  --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General --
-- Public License for more details. You should have received  a copy of the --
-- GNU General Public License distributed with Ocarina; see file COPYING.   --
-- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth --
-- Floor, Boston, MA 02111-1301, USA.                                       --
--                                                                          --
-- As a special exception,  if other files  instantiate  generics from this --
-- unit, or you link  this unit with other files  to produce an executable, --
-- this  unit  does not  by itself cause  the resulting  executable to be   --
-- covered  by the  GNU  General  Public  License. This exception does not  --
-- however invalidate  any other reasons why the executable file might be   --
-- covered by the GNU Public License.                                       --
--                                                                          --
--                 Ocarina is maintained by the Ocarina team                --
--                       (ocarina-users@listes.enst.fr)                     --
--                                                                          --
------------------------------------------------------------------------------

with Namet;
with Output;
with Ocarina.AADL_Values;
with Ocarina.Expander;
with Ocarina.Nodes;
with Ocarina.Entities;
with Ocarina.PN.Components;
with Ocarina.PN.Root;
with Ocarina.PN.Printer;
with Ocarina.PN.Nodes;

package body Ocarina.PN is

   ----------------------
   -- Create_Petri_Net --
   ----------------------

   function Create_Petri_Net
     (Root    : Types.Node_Id;
      Options : PN_Options := Default_PN_Options)
      return    Boolean
   is
      use Types;
      use Output;
      use Namet;
      use Ocarina.Nodes;
      use Ocarina.Entities;
      use Ocarina.Expander;
      use Ocarina.PN.Components;
      use Ocarina.PN.Root;
      use Ocarina.PN.Printer;

      pragma Assert
        (Root /= No_Node and then Kind (Root) = K_AADL_Specification);

      PN_Root, Instance_Root : Node_Id;
   begin
      Instance_Root := Expand_Model (Root);

      if Instance_Root /= No_Node
        and then not Create_Virtual_Connections
                       (Instance_Root,
                        Root_System (Instance_Root))
      then
         Instance_Root := No_Node;
      end if;

      if Instance_Root /= No_Node then
         PN_Root := Process_Architecture_Instance (Instance_Root, Options);
      else
         PN_Root := No_Node;
      end if;

      if PN_Root /= No_Node then
         Create_PN_Declarations (PN_Root);
      end if;

      if PN_Root /= No_Node then
         Print_Root_Node (PN_Root, Options);
         Write_Str ("AADL files correctly processed in ");

         if Get_Name_String (Options.Output_Directory) /= "." then
            Write_Line (Get_Name_String (Options.Output_Directory));
         else
            Write_Line (Get_Name_Of_Entity (Root_System (Instance_Root)));
         end if;
      else
         Write_Line ("ERROR while processing AADL files");
      end if;

      return (PN_Root /= No_Node);
   end Create_Petri_Net;

   ----------
   -- Init --
   ----------

   procedure Init is
      use Namet;
      use Ocarina.AADL_Values;
   begin
      Set_Str_To_Name_Buffer (".");
      Default_PN_Options := (Output_Directory => Name_Find);
      Set_Str_To_Name_Buffer ("_");
      Separator := Name_Find;
      Set_Str_To_Name_Buffer ("dispatch_protocol");
      Dispatch_Property := Name_Find;
      Set_Str_To_Name_Buffer ("background");
      Background_Dispatch := Name_Find;
      Set_Str_To_Name_Buffer ("<>");
      Guard_Unequality := New_String_Value (Name_Find);
      Set_Str_To_Name_Buffer ("=");
      Guard_Equality := New_String_Value (Name_Find);
      Set_Str_To_Name_Buffer ("u");
      Undefined_Value_Variable := Name_Find;
   end Init;

   -----------
   -- Reset --
   -----------

   procedure Reset is
   begin
      Ocarina.PN.Nodes.Entries.Init;
   end Reset;

end Ocarina.PN;