File : src/aws-services-dispatchers-virtual_host.ads


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--  $RCSfile: aws-services-dispatchers-virtual_host.ads,v $
--  $Revision: 1.4 $ $Date: 2003/12/08 14:28:04 $ $Author: obry $

with Ada.Strings.Unbounded;

with Table_Of_Strings_And_Static_Values_G;

with AWS.Dispatchers;
with AWS.Response;
with AWS.Status;

package AWS.Services.Dispatchers.Virtual_Host is

   type Handler is new AWS.Dispatchers.Handler with private;

   function Dispatch
     (Dispatcher : in Handler;
      Request    : in Status.Data)
     return Response.Data;

   procedure Register
     (Dispatcher       : in out Handler;
      Virtual_Hostname : in     String;
      Hostname         : in     String);
   --  Register Virtual_Hostname to be a redirection to the specified
   --  hostname.

   procedure Register
     (Dispatcher       : in out Handler;
      Virtual_Hostname : in     String;
      Action           : in     AWS.Dispatchers.Handler'Class);
   --  Register Virtual_Hostname to use the specified callback.

   procedure Register
     (Dispatcher       : in out Handler;
      Virtual_Hostname : in     String;
      Action           : in     Response.Callback);
   --  Idem as above but take a callback procedure as parameter.

   procedure Unregister
     (Dispatcher       : in out Handler;
      Virtual_Hostname : in     String);
   --  Removes Virtual_Hostname from the list of virtual hostnames to handle.

   procedure Register_Default_Callback
     (Dispatcher : in out Handler;
      Action     : in     AWS.Dispatchers.Handler'Class);
   --  Register the default callback. This will be used if no Virtual_Hostname
   --  match the request.

private

   use Ada.Strings.Unbounded;

   procedure Initialize (Dispatcher : in out Handler);
   procedure Finalize   (Dispatcher : in out Handler);

   type VH_Mode is (Host, Callback);

   type VH_Node (Mode : VH_Mode := Host) is record
      case Mode is
         when Host =>
            Hostname : Unbounded_String;
         when Callback =>
            Action   : AWS.Dispatchers.Handler_Class_Access;
      end case;
   end record;

   package Virtual_Host_Table is new Table_Of_Strings_And_Static_Values_G
     (Character, String, "<", "=", VH_Node);

   type VH_Table_Access is access Virtual_Host_Table.Table_Type;

   type Handler is new AWS.Dispatchers.Handler with record
      Action : AWS.Dispatchers.Handler_Class_Access;
      Table  : VH_Table_Access;
   end record;

end AWS.Services.Dispatchers.Virtual_Host;