------------------------------------------------------------------------------
--                                                                          --
--                           POLYORB COMPONENTS                             --
--                                                                          --
--                I O P . C O D E C F A C T O R Y . I M P L                 --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--         Copyright (C) 2004-2023, Free Software Foundation, Inc.          --
--                                                                          --
-- This is free software;  you can redistribute it  and/or modify it  under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  This software is distributed in the hope  that it will be useful, --
-- but WITHOUT ANY WARRANTY;  without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public --
-- License for  more details.                                               --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
--                  PolyORB is maintained by AdaCore                        --
--                     (email: sales@adacore.com)                           --
--                                                                          --
------------------------------------------------------------------------------

with CORBA.Impl;
with PolyORB.Initial_References;
with PolyORB.Initialization;
with PolyORB.References;
with PolyORB.Representations.CDR;
with PolyORB.Types;
with PolyORB.Utils.Strings.Lists;

with IOP.Codec.Impl;
with IOP.CodecFactory.Helper;

package body IOP.CodecFactory.Impl is

   use PolyORB.Representations.CDR;

   function Create return PolyORB.References.Ref;

   procedure Deferred_Initialization;

   ------------
   -- Create --
   ------------

   function Create return PolyORB.References.Ref is
      Result  : PolyORB.References.Ref;
   begin
      Result.Set (new Object);
      return Result;
   end Create;

   ------------------
   -- Create_Codec --
   ------------------

   function Create_Codec
     (Self : access Object;
      Enc  : Encoding)
     return IOP.Codec.Local_Ref
   is
      pragma Unreferenced (Self);

      Representation : CDR_Representation_Access;
      Ptr            : IOP.Codec.Impl.Object_Ptr;
      Result         : IOP.Codec.Local_Ref;

   begin
      case Enc.format is
         when ENCODING_CDR_ENCAPS =>
            Representation :=
              Create_Representation
                (PolyORB.Types.Octet (Enc.major_version),
                 PolyORB.Types.Octet (Enc.minor_version));

            if Representation /= null then
               Ptr := new IOP.Codec.Impl.Object;
               IOP.Codec.Impl.Init (Ptr, Representation);
               IOP.Codec.Set (Result, CORBA.Impl.Object_Ptr (Ptr));
               return Result;
            end if;

         when others =>
            null;
      end case;

      Helper.Raise_UnknownEncoding ((null record));
   end Create_Codec;

   -----------------------------
   -- Deferred_Initialization --
   -----------------------------

   procedure Deferred_Initialization is
   begin
      PolyORB.Initial_References.Register_Initial_Reference
        ("CodecFactory", Create'Access);
   end Deferred_Initialization;

   ----------
   -- Is_A --
   ----------

   function Is_A
     (Self            : not null access Object;
      Logical_Type_Id : Standard.String) return Boolean
   is
      pragma Unreferenced (Self);
   begin
      return
        CORBA.Is_Equivalent
          (Logical_Type_Id, IOP.CodecFactory.Repository_Id)
          or else
        CORBA.Is_Equivalent
          (Logical_Type_Id, "IDL:omg.org/CORBA/Object:1.0");
   end Is_A;

begin
   declare
      use PolyORB.Initialization;
      use PolyORB.Utils.Strings;
      use PolyORB.Utils.Strings.Lists;
   begin
      Register_Module
        (Module_Info'
         (Name      => +"ior.codecfactory.impl",
          Conflicts => Empty,
          Depends   => +"initial_references",
          Provides  => Empty,
          Implicit  => False,
          Init      => Deferred_Initialization'Access,
          Shutdown  => null));
   end;
end IOP.CodecFactory.Impl;
