riak_ensemble_sup.erl

%% -------------------------------------------------------------------
%%
%% Copyright (c) 2013 Basho Technologies, Inc.  All Rights Reserved.
%%
%% This file is provided to you under the Apache License,
%% Version 2.0 (the "License"); you may not use this file
%% except in compliance with the License.  You may obtain
%% a copy of the License at
%%
%%   http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing,
%% software distributed under the License is distributed on an
%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
%% KIND, either express or implied.  See the License for the
%% specific language governing permissions and limitations
%% under the License.
%%
%% -------------------------------------------------------------------
-module(riak_ensemble_sup).

-behaviour(supervisor).

%% API
-export([start_link/0, start_link/1]).

%% Supervisor callbacks
-export([init/1]).

%% Helper macro for declaring children of supervisor
-define(CHILD(I, Type), {I, {I, start_link, []}, permanent, 5000, Type, [I]}).

%% ===================================================================
%% API functions
%% ===================================================================

start_link(Path) ->
    application:set_env(riak_ensemble, data_root, Path),
    start_link().

start_link() ->
    supervisor:start_link({local, ?MODULE}, ?MODULE, []).

%% ===================================================================
%% Supervisor callbacks
%% ===================================================================

init([]) ->
    riak_ensemble_test:setup(),
    synctree_leveldb:init_ets(),
    Children = [?CHILD(riak_ensemble_router_sup, supervisor),
                ?CHILD(riak_ensemble_storage, worker),
                ?CHILD(riak_ensemble_peer_sup, supervisor),
                ?CHILD(riak_ensemble_manager, worker)],
    {ok, {{rest_for_one, 5, 10}, Children}}.