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(*
* Copyright (C) 2006-2009 Citrix Systems Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*)
type item_info = {
item_title: string;
item_link: string option;
item_description: string;
item_pubdate: string;
}
type channel_info = {
chan_title: string;
chan_description: string;
chan_language: string;
chan_pubdate: string;
chan_items: item_info list;
}
let to_xml chans =
let simple_node nodename pcdata =
Xml.Element (nodename, [], [ Xml.PCData pcdata ])
in
let simple_optional_node nodename pcdata =
match pcdata with
| None -> []
| Some pcdata -> [ simple_node nodename pcdata ]
in
let item_to_xml item =
let itemchildren =
[ simple_node "title" item.item_title ] @
(simple_optional_node "link" item.item_link) @
[ simple_node "description" item.item_description ] @
[ simple_node "pubDate" item.item_pubdate ] @
[]
in
Xml.Element ("item", [], itemchildren)
in
let channel_to_xml chan =
let infos_xml =
[ simple_node "title" chan.chan_title ] @
[ simple_node "description" chan.chan_description ] @
[ simple_node "language" chan.chan_language ] @
[ simple_node "pubDate" chan.chan_pubdate ] @
[ simple_node "generator" "Xapi alerts generator" ] @
[]
in
let items_xml = List.map item_to_xml chan.chan_items in
Xml.Element ("channel", [], infos_xml @ items_xml)
in
Xml.Element ("rss", [ ("version", "2.0") ],
List.map channel_to_xml chans)
let to_stream rsschans outchan =
output_string outchan "<?xml version=\"1.0\"?>\n";
output_string outchan (Xml.to_string (to_xml rsschans));
flush outchan;
()
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