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riak_control.erl
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/
riak_control.erl
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%% -------------------------------------------------------------------
%%
%% Copyright (c) 2011 Basho Technologies, Inc.
%%
%% 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.
%%
%% -------------------------------------------------------------------
%% @doc Utilities needed by many pieces of the riak_control app.
-module(riak_control).
-export([
is_app_up/1,
priv_dir/0
]).
%% @doc Find out if any nodes are running a given Riak app.
-spec is_app_up(atom()) -> boolean().
is_app_up(App) ->
riak_core_node_watcher:nodes(App) /= [].
%% @doc Path for the /priv dir of the riak_control app.
-spec priv_dir() -> string().
priv_dir() ->
code:priv_dir(?MODULE).