File : adagio-upload-queue-create_from_xml.adb


------------------------------------------------------------------------------

--                         ADAGIO - ADALID - AENEA.                         --

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--                            Copyright (C) 2003                            --

--                                 A. Mosteo.                               --

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--  Authors: A. Mosteo. (adagio@mosteo.com)                                 --

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------------------------------------------------------------------------------

--  $Id: adagio-upload-queue-create_from_xml.adb,v 1.3 2004/01/21 21:05:50 Jano Exp $


-- Creation of a queue from Xml node


procedure Adagio.Upload.Queue.Create_from_xml ( 
   This  : out Queue.Object;
   Node  : in  Xml.Node;
   Ratio : in  Float) is

   Preempt : Preemptions;
   Order   : Orderings;
begin

   if Xml.Get_attribute ("preemption", "active", Node, "no") = "no" then
      Preempt.Kind := None;
   else
      Preempt.Time := 
         Xml.Utils.Get_duration ("preemption", "time", Node, 0.0);
      Preempt.Size := 
         Xml.Utils.Get_size ("preemption", "size", Node, 0);
      if Preempt.Time /= 0.0 and Preempt.Size /= 0 then
         Preempt.Kind := Both;
      elsif Preempt.Time /= 0.0 then
         Preempt.Kind := Time;
      elsif Preempt.Size /= 0 then
         Preempt.Kind := Size;
      else
         Preempt.Kind := None;
      end if;
   end if;

   Order.Kind := Order_types'Value (Xml.Get_attribute (Node, "type", "fifo"));
   Order.Expression := U (Misc.To_lower (
      Xml.Get_attribute ("type", "expression", Node, "Position")));

   -- Ensure valid expression

   if Order.Kind = rated and then 
      not Ratings.Check_syntax (S (Order.Expression)) 
   then
      return;
   end if;

   This.Create (
      This'Unrestricted_access, 
      Name      => Xml.Get_attribute (Node, "name", ""),
      Length    => Xml.Utils.Get_num (Node, "length", 64),
      Uploads   => Xml.Utils.Get_num (Node, "ActiveClients", 2),
      Bandwidth => File_size (Float (Xml.Utils.Get_speed ("uploads", 
                     "bandwidth", Globals.Config, File_size'Last)) * Ratio),
      Minimum_speed => Xml.Utils.Get_speed (Node, "MinimumClientSpeed", 0),
      Average_period => Xml.Utils.Get_duration (Node, "AveragePeriod", 60.0),
      Criteria   => Xml.Get_attribute ("criteria", "is", Node, "true"),
      Preemptive => Preempt,
      Ordering   => Order,
      Base_folder => S (Globals.Data_folder)
      );


end Adagio.Upload.Queue.Create_from_xml;