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%%%-------------------------------------------------------------------
%%% File : mod_roster_riak.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 14 Apr 2016 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_roster_riak).
-behaviour(mod_roster).
%% API
-export([init/2, read_roster_version/2, write_roster_version/4,
get_roster/2, get_roster_item/3, create_roster/1,
roster_subscribe/4, remove_user/2, update_roster/4,
del_roster/3, read_subscription_and_groups/3, transaction/2,
import/3]).
-include("mod_roster.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
ok.
read_roster_version(LUser, LServer) ->
case ejabberd_riak:get(roster_version, roster_version_schema(),
{LUser, LServer}) of
{ok, #roster_version{version = V}} -> {ok, V};
_Err -> error
end.
write_roster_version(LUser, LServer, _InTransaction, Ver) ->
US = {LUser, LServer},
ejabberd_riak:put(#roster_version{us = US, version = Ver},
roster_version_schema()).
get_roster(LUser, LServer) ->
case ejabberd_riak:get_by_index(roster, roster_schema(),
<<"us">>, {LUser, LServer}) of
{ok, Items} -> {ok, Items};
_Err -> error
end.
roster_subscribe(LUser, LServer, _LJID, Item) ->
ejabberd_riak:put(Item, roster_schema(),
[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
transaction(_LServer, F) ->
{atomic, F()}.
get_roster_item(LUser, LServer, LJID) ->
case ejabberd_riak:get(roster, roster_schema(), {LUser, LServer, LJID}) of
{ok, I} ->
{ok, I};
{error, _} ->
error
end.
remove_user(LUser, LServer) ->
ejabberd_riak:delete_by_index(roster, <<"us">>, {LUser, LServer}).
update_roster(LUser, LServer, _LJID, Item) ->
ejabberd_riak:put(Item, roster_schema(),
[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
del_roster(LUser, LServer, LJID) ->
ejabberd_riak:delete(roster, {LUser, LServer, LJID}).
read_subscription_and_groups(LUser, LServer, LJID) ->
case ejabberd_riak:get(roster, roster_schema(), {LUser, LServer, LJID}) of
{ok, #roster{subscription = Subscription,
ask = Ask,
groups = Groups}} ->
{ok, {Subscription, Ask, Groups}};
_ ->
error
end.
create_roster(#roster{us = {LUser, LServer}} = RItem) ->
ejabberd_riak:put(
RItem, roster_schema(),
[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
import(_LServer, <<"rosterusers">>, RosterItem) ->
{LUser, LServer} = RosterItem#roster.us,
ejabberd_riak:put(RosterItem, roster_schema(),
[{'2i', [{<<"us">>, {LUser, LServer}}]}]);
import(LServer, <<"roster_version">>, [LUser, Ver]) ->
RV = #roster_version{us = {LUser, LServer}, version = Ver},
ejabberd_riak:put(RV, roster_version_schema()).
%%%===================================================================
%%% Internal functions
%%%===================================================================
roster_schema() ->
{record_info(fields, roster), #roster{}}.
roster_version_schema() ->
{record_info(fields, roster_version), #roster_version{}}.
|
