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164 | ------------------------------------------------------------------------------
-- --
-- Matreshka Project --
-- --
-- Web Framework --
-- --
-- Runtime Library Component --
-- --
------------------------------------------------------------------------------
-- --
-- Copyright © 2014-2015, 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: 5390 $ $Date: 2015-06-14 17:24:03 +0300 (Вс, 14 июн 2015) $
------------------------------------------------------------------------------
with Ada.Containers.Hashed_Maps;
with League.String_Vectors;
with League.Strings.Hash;
with Matreshka.Servlet_HTTP_Requests;
with Matreshka.Servlet_Registrations;
package Matreshka.Servlet_Dispatchers is
type Abstract_Dispatcher is limited interface;
type Dispatcher_Access is access all Abstract_Dispatcher'Class;
not overriding procedure Dispatch
(Self : not null access constant Abstract_Dispatcher;
Request : in out
Matreshka.Servlet_HTTP_Requests.Abstract_HTTP_Servlet_Request'Class;
Path : League.String_Vectors.Universal_String_Vector;
Index : Positive;
Servlet : in out
Matreshka.Servlet_Registrations.Servlet_Registration_Access)
is abstract;
-- Dispatches request. Path is full path and Index is segment of path that
-- must be dispatched by the current dispatcher. Servlet parameter is set
-- to servlet registration to process request. Request parameter is
-- modified by setting of indices of context/servlet/path segments.
type Context_Dispatcher is limited new Abstract_Dispatcher with private;
procedure Add_Mapping
(Self : not null access Context_Dispatcher'Class;
Servlet :
not null Matreshka.Servlet_Registrations.Servlet_Registration_Access;
URL_Pattern : League.Strings.Universal_String;
Success : out Boolean);
-- Adds mapping by parsing given URL_Pattern. Sets Success to True when
-- mapping is added successfully. Sets Success to False when mapping is
-- exists.
private
package Dispatcher_Maps is
new Ada.Containers.Hashed_Maps
(League.Strings.Universal_String,
Dispatcher_Access,
League.Strings.Hash,
League.Strings."=");
------------------------
-- Segment_Dispatcher --
------------------------
-- Segment dispatcher dispatches request to one of children segments of
-- path.
type Segment_Dispatcher is limited new Abstract_Dispatcher with record
Children : Dispatcher_Maps.Map;
end record;
overriding procedure Dispatch
(Self : not null access constant Segment_Dispatcher;
Request : in out
Matreshka.Servlet_HTTP_Requests.Abstract_HTTP_Servlet_Request'Class;
Path : League.String_Vectors.Universal_String_Vector;
Index : Positive;
Servlet : in out
Matreshka.Servlet_Registrations.Servlet_Registration_Access);
------------------------
-- Servlet_Dispatcher --
------------------------
-- Servlet dispatcher dispatches request to servlet checking for exact and
-- longest path-prefix mappings.
type Servlet_Dispatcher is new Segment_Dispatcher with record
Exact_Servlet :
Matreshka.Servlet_Registrations.Servlet_Registration_Access;
Mapping_Servlet :
Matreshka.Servlet_Registrations.Servlet_Registration_Access;
end record;
overriding procedure Dispatch
(Self : not null access constant Servlet_Dispatcher;
Request : in out
Matreshka.Servlet_HTTP_Requests.Abstract_HTTP_Servlet_Request'Class;
Path : League.String_Vectors.Universal_String_Vector;
Index : Positive;
Servlet : in out
Matreshka.Servlet_Registrations.Servlet_Registration_Access);
------------------------
-- Context_Dispatcher --
------------------------
package Extension_Maps is
new Ada.Containers.Hashed_Maps
(League.Strings.Universal_String,
Matreshka.Servlet_Registrations.Servlet_Registration_Access,
League.Strings.Hash,
League.Strings."=",
Matreshka.Servlet_Registrations."=");
type Context_Dispatcher is limited new Segment_Dispatcher with record
Root_Servlet :
Matreshka.Servlet_Registrations.Servlet_Registration_Access;
Default_Servlet :
Matreshka.Servlet_Registrations.Servlet_Registration_Access;
Extension_Servlets : Extension_Maps.Map;
end record;
overriding procedure Dispatch
(Self : not null access constant Context_Dispatcher;
Request : in out
Matreshka.Servlet_HTTP_Requests.Abstract_HTTP_Servlet_Request'Class;
Path : League.String_Vectors.Universal_String_Vector;
Index : Positive;
Servlet : in out
Matreshka.Servlet_Registrations.Servlet_Registration_Access);
end Matreshka.Servlet_Dispatchers;
|