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%%%-------------------------------------------------------------------
%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 15 Apr 2017 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% 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
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%-------------------------------------------------------------------
-module(ejabberd_router_riak).
-behaviour(ejabberd_router).
%% API
-export([init/0, register_route/5, unregister_route/3, find_routes/1,
get_all_routes/0]).
-include("logger.hrl").
-include("ejabberd_router.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init() ->
clean_table().
register_route(Domain, ServerHost, LocalHint, _, Pid) ->
ejabberd_riak:put(#route{domain = Domain,
server_host = ServerHost,
local_hint = LocalHint,
pid = Pid},
route_schema(),
[{i, {Domain, Pid}}, {'2i', [{<<"route">>, Domain}]}]).
unregister_route(Domain, _, Pid) ->
ejabberd_riak:delete(route, {Domain, Pid}).
find_routes(Domain) ->
ejabberd_riak:get_by_index(route, route_schema(), <<"route">>, Domain).
get_all_routes() ->
case ejabberd_riak:get(route, route_schema()) of
{ok, Routes} ->
{ok, lists:flatmap(
fun(#route{domain = D, server_host = S}) when D /= S ->
[D];
(_) ->
[]
end, Routes)};
Err ->
Err
end.
%%%===================================================================
%%% Internal functions
%%%===================================================================
route_schema() ->
{record_info(fields, route), #route{}}.
clean_table() ->
?DEBUG("Cleaning Riak 'route' table...", []),
case ejabberd_riak:get(route, route_schema()) of
{ok, Routes} ->
lists:foreach(
fun(#route{domain = Domain, pid = Pid}) ->
ejabberd_riak:delete(route, {Domain, Pid})
end, Routes);
{error, Err} ->
?ERROR_MSG("failed to clean Riak 'route' table: ~p", [Err]),
Err
end.
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