text
stringlengths
0
234
--
-- This method allows the servlet container to make a resource available to
-- servlets from any source.
--
-- This method returns an empty string if the resource could not be localized.
-- ------------------------------
function Get_Resource (Context : in Servlet_Registry;
Path : in String) return String is
Paths : constant String := Context.Get_Init_Parameter ("view.dir");
Result : constant String := Util.Files.Find_File_Path (Name => Path, Paths => Paths);
begin
if Result = Path then
return "";
else
return Result;
end if;
end Get_Resource;
-- ------------------------------
-- Registers the given servlet instance with this ServletContext under
-- the given servletName.
--
-- If this ServletContext already contains a preliminary
-- ServletRegistration for a servlet with the given servletName,
-- it will be completed (by assigning the class name of the given
-- servlet instance to it) and returned.
-- ------------------------------
procedure Add_Servlet (Registry : in out Servlet_Registry;
Name : in String;
Server : in Servlet_Access) is
begin
Log.Info ("Add servlet '{0}'", Name);
if Server.Context /= null then
Log.Error ("Servlet '{0}' already registered in a servlet registry", Server.Get_Name);
raise Servlet_Error;
end if;
Server.Name := To_Unbounded_String (Name);
Server.Context := Registry'Unchecked_Access;
Servlet_Maps.Include (Registry.Servlets, Name, Server);
end Add_Servlet;
-- ------------------------------
-- Registers the given filter instance with this Servlet context.
-- ------------------------------
procedure Add_Filter (Registry : in out Servlet_Registry;
Name : in String;
Filter : in Filter_Access) is
begin
Log.Info ("Add servlet filter '{0}'", Name);
Filter_Maps.Include (Registry.Filters, Name,
Filter.all'Unchecked_Access);
end Add_Filter;
-- ------------------------------
-- Causes the next filter in the chain to be invoked, or if the calling
-- filter is the last filter in the chain, causes the resource at the end
-- of the chain to be invoked.
-- ------------------------------
procedure Do_Filter (Chain : in out Filter_Chain;
Request : in out Requests.Request'Class;
Response : in out Responses.Response'Class) is
begin
if Chain.Filter_Pos = 0 then
Chain.Servlet.Service (Request, Response);
else
declare
Filter : constant Filters.Filter_Access := Chain.Filters (Chain.Filter_Pos);
begin
Chain.Filter_Pos := Chain.Filter_Pos - 1;
Filter.Do_Filter (Request, Response, Chain);
Function Definition: procedure Make_Route;
Function Body: procedure Initialize_Filter (Key : in String;
Filter : in Filter_Access);
procedure Initialize_Servlet (Pos : in Servlet_Maps.Cursor);
procedure Process (URI : in String;
Route : in Routes.Route_Type_Accessor) is
Iter : Util.Strings.Vectors.Cursor := Registry.Filter_Patterns.First;
Servlet_Route : access Routes.Servlets.Servlet_Route_Type'Class;
begin
if not (Route in Routes.Servlets.Servlet_Route_Type'Class) then
return;
end if;
Servlet_Route := Routes.Servlets.Servlet_Route_Type'Class (Route.Element.all)'Access;
while Util.Strings.Vectors.Has_Element (Iter) loop
declare
Pattern : constant String := Util.Strings.Vectors.Element (Iter);
Filter : Filter_List_Access;
begin
if Match_Pattern (Pattern, URI) then
Filter := Registry.Filter_Rules.Element (Pattern);
for I in Filter'Range loop
Routes.Servlets.Append_Filter (Servlet_Route.all, Filter (I).all'Access);
end loop;
end if;