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176 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Examples Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2016-2020, Vadim Godunko <vgodunko@gmail.com> --
-- All rights reserved. --
-- --
-- Redistribution and use in source and binary forms, with or without --
-- modification, are permitted provided that the following conditions --
-- are met: --
-- --
-- * Redistributions of source code must retain the above copyright --
-- notice, this list of conditions and the following disclaimer. --
-- --
-- * Redistributions in binary form must reproduce the above copyright --
-- notice, this list of conditions and the following disclaimer in the --
-- documentation and/or other materials provided with the distribution. --
-- --
-- * Neither the name of the Vadim Godunko, IE nor the names of its --
-- contributors may be used to endorse or promote products derived from --
-- this software without specific prior written permission. --
-- --
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS --
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT --
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR --
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT --
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, --
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED --
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR --
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF --
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING --
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS --
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. --
-- --
------------------------------------------------------------------------------
-- $Revision$ $Date$
------------------------------------------------------------------------------
with Ada.Wide_Wide_Text_IO;
with League.Stream_Element_Vectors;
with Web_Socket.Connections;
package body Servlets.Hello is
function "+"
(Text : Wide_Wide_String) return League.Strings.Universal_String
renames League.Strings.To_Universal_String;
Max_Count : constant := 5;
type WS_Handler_Access is access all WS_Handler'Class;
------------
-- Do_Get --
------------
overriding procedure Do_Get
(Self : in out Hello_Servlet;
Request : Servlet.HTTP_Requests.HTTP_Servlet_Request'Class;
Response : in out Servlet.HTTP_Responses.HTTP_Servlet_Response'Class)
is
H : WS_Handler_Access := new WS_Handler;
begin
H.WS.Set_Web_Socket_Listener (H.all'Access);
Request.Upgrade (H.WS'Access);
Response.Set_Status (Servlet.HTTP_Responses.Switching_Protocols);
end Do_Get;
----------------------
-- Get_Servlet_Info --
----------------------
overriding function Get_Servlet_Info
(Self : Hello_Servlet)
return League.Strings.Universal_String
is
pragma Unreferenced (Self);
Text : constant Wide_Wide_String :=
"Hello servlet provides WebSocket upgrade responses";
begin
return +Text;
end Get_Servlet_Info;
-----------------
-- Instantiate --
-----------------
overriding function Instantiate
(Parameters : not null access
Servlet.Generic_Servlets.Instantiation_Parameters'Class)
return Hello_Servlet
is
pragma Unreferenced (Parameters);
begin
return (Servlet.HTTP_Servlets.HTTP_Servlet with null record);
end Instantiate;
---------------
-- On_Binary --
---------------
overriding procedure On_Binary
(Self : in out WS_Handler;
Data : Ada.Streams.Stream_Element_Array)
is
Vector : League.Stream_Element_Vectors.Stream_Element_Vector;
begin
Ada.Wide_Wide_Text_IO.Put_Line
("On_Binary:" & Natural'Wide_Wide_Image (Data'Length));
if Self.Count < Max_Count then
Self.Count := Self.Count + 1;
Vector.Append (Data);
Web_Socket.Connections.Connection'Class (Self.WS).
Send_Binary (Vector);
-- Web_Socket.Handlers.AWS_Handlers.Send_Binary (Self.WS, Vector);
-- Self.WS.Send_Binary (Vector);
end if;
end On_Binary;
--------------
-- On_Close --
--------------
overriding procedure On_Close
(Self : in out WS_Handler;
Status : Web_Socket.Listeners.Status_Code;
Reason : League.Strings.Universal_String) is
begin
Ada.Wide_Wide_Text_IO.Put_Line
("On_Close: "
& Web_Socket.Listeners.Status_Code'Wide_Wide_Image (Status)
& Reason.To_Wide_Wide_String);
end On_Close;
----------------
-- On_Connect --
----------------
overriding procedure On_Connect (Self : in out WS_Handler) is
begin
Ada.Wide_Wide_Text_IO.Put_Line ("On_Connect");
end On_Connect;
--------------
-- On_Error --
--------------
overriding procedure On_Error (Self : in out WS_Handler) is
begin
Ada.Wide_Wide_Text_IO.Put_Line ("On_Error");
end On_Error;
-------------
-- On_Text --
-------------
overriding procedure On_Text
(Self : in out WS_Handler;
Text : League.Strings.Universal_String) is
begin
Ada.Wide_Wide_Text_IO.Put_Line ("On_Text: " & Text.To_Wide_Wide_String);
if Self.Count < Max_Count then
Self.Count := Self.Count + 1;
Web_Socket.Connections.Connection'Class (Self.WS).
Send_Text (Text);
end if;
end On_Text;
end Servlets.Hello;
|