135 lines
4.7 KiB
Erlang
135 lines
4.7 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% File : mod_roster_riak.erl
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%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% Created : 14 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_roster_riak).
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-behaviour(mod_roster).
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%% API
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-export([init/2, read_roster_version/2, write_roster_version/4,
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get_roster/2, get_roster_by_jid/3, create_roster/1,
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roster_subscribe/4, get_roster_by_jid_with_groups/3,
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remove_user/2, update_roster/4, del_roster/3, transaction/2,
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read_subscription_and_groups/3, get_only_items/2, import/3]).
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-include("mod_roster.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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ok.
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read_roster_version(LUser, LServer) ->
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case ejabberd_riak:get(roster_version, roster_version_schema(),
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{LUser, LServer}) of
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{ok, #roster_version{version = V}} -> V;
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_Err -> error
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end.
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write_roster_version(LUser, LServer, _InTransaction, Ver) ->
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US = {LUser, LServer},
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ejabberd_riak:put(#roster_version{us = US, version = Ver},
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roster_version_schema()).
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get_roster(LUser, LServer) ->
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case ejabberd_riak:get_by_index(roster, roster_schema(),
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<<"us">>, {LUser, LServer}) of
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{ok, Items} -> Items;
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_Err -> []
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end.
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get_roster_by_jid(LUser, LServer, LJID) ->
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case ejabberd_riak:get(roster, roster_schema(), {LUser, LServer, LJID}) of
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{ok, I} ->
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I#roster{jid = LJID, name = <<"">>, groups = [], xs = []};
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{error, notfound} ->
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#roster{usj = {LUser, LServer, LJID},
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us = {LUser, LServer}, jid = LJID};
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Err ->
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exit(Err)
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end.
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get_only_items(LUser, LServer) ->
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get_roster(LUser, LServer).
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roster_subscribe(LUser, LServer, _LJID, Item) ->
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ejabberd_riak:put(Item, roster_schema(),
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[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
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transaction(_LServer, F) ->
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{atomic, F()}.
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get_roster_by_jid_with_groups(LUser, LServer, LJID) ->
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case ejabberd_riak:get(roster, roster_schema(), {LUser, LServer, LJID}) of
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{ok, I} ->
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I;
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{error, notfound} ->
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#roster{usj = {LUser, LServer, LJID},
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us = {LUser, LServer}, jid = LJID};
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Err ->
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exit(Err)
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end.
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remove_user(LUser, LServer) ->
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{atomic, ejabberd_riak:delete_by_index(roster, <<"us">>, {LUser, LServer})}.
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update_roster(LUser, LServer, _LJID, Item) ->
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ejabberd_riak:put(Item, roster_schema(),
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[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
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del_roster(LUser, LServer, LJID) ->
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ejabberd_riak:delete(roster, {LUser, LServer, LJID}).
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read_subscription_and_groups(LUser, LServer, LJID) ->
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case ejabberd_riak:get(roster, roster_schema(), {LUser, LServer, LJID}) of
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{ok, #roster{subscription = Subscription,
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groups = Groups}} ->
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{Subscription, Groups};
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_ ->
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error
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end.
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create_roster(#roster{us = {LUser, LServer}} = RItem) ->
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ejabberd_riak:put(
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RItem, roster_schema(),
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[{'2i', [{<<"us">>, {LUser, LServer}}]}]).
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import(_LServer, <<"rosterusers">>, RosterItem) ->
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{LUser, LServer} = RosterItem#roster.us,
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ejabberd_riak:put(RosterItem, roster_schema(),
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[{'2i', [{<<"us">>, {LUser, LServer}}]}]);
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import(LServer, <<"roster_version">>, [LUser, Ver]) ->
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RV = #roster_version{us = {LUser, LServer}, version = Ver},
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ejabberd_riak:put(RV, roster_version_schema()).
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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roster_schema() ->
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{record_info(fields, roster), #roster{}}.
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roster_version_schema() ->
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{record_info(fields, roster_version), #roster_version{}}.
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