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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) 2002-2018 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(mod_carboncopy_riak).
-behaviour(mod_carboncopy).
%% API
-export([init/2, enable/4, disable/3, list/2]).
-include("logger.hrl").
-include("mod_carboncopy.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
clean_table().
enable(LUser, LServer, LResource, NS) ->
ejabberd_riak:put(#carboncopy{us = {LUser, LServer},
resource = LResource,
version = NS},
carboncopy_schema(),
[{i, {LUser, LServer, LResource}},
{'2i', [{<<"us">>, {LUser, LServer}}]}]).
disable(LUser, LServer, LResource) ->
ejabberd_riak:delete(carboncopy, {LUser, LServer, LResource}).
list(LUser, LServer) ->
case ejabberd_riak:get_by_index(
carboncopy, carboncopy_schema(),
<<"us">>, {LUser, LServer}) of
{ok, Rs} ->
{ok, [{Resource, NS, Node}
|| #carboncopy{resource = Resource,
version = NS,
node = Node} <- Rs]};
{error, _} = Err ->
Err
end.
%%%===================================================================
%%% Internal functions
%%%===================================================================
carboncopy_schema() ->
{record_info(fields, carboncopy), #carboncopy{}}.
clean_table() ->
?DEBUG("Cleaning Riak 'carboncopy' table...", []),
case ejabberd_riak:get(carboncopy, carboncopy_schema()) of
{ok, Rs} ->
lists:foreach(
fun(#carboncopy{us = {U, S}, resource = R, node = Node})
when Node == node() ->
ejabberd_riak:delete(carboncopy, {U, S, R});
(_) ->
ok
end, Rs);
{error, Reason} = Err ->
?ERROR_MSG("Failed to clean Riak 'carboncopy' table: ~p", [Reason]),
Err
end.
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