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%%%
%%% Copyright 2011, Boundary
%%%
%%% Licensed 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.
%%%
%%%-------------------------------------------------------------------
%%% File: folsom.erl
%%% @author joe williams <j@boundary.com>
%%% @doc
%%% @end
%%%------------------------------------------------------------------
-module(folsom).
-export([start/0, stop/0]).
-export([start/2, stop/1]).
-behaviour(application).
-define(APP, ?MODULE).
start() ->
application:start(?APP).
stop() ->
application:stop(?APP).
start(_Type, _Args) ->
{ok, Pid} = folsom_sup:start_link(),
lists:foreach(fun configure/1,
[{counter, new_counter},
{gauge, new_gauge},
{histogram, new_histogram},
{history, new_history},
{meter, new_meter},
{meter_reader, new_meter_reader}]),
{ok, Pid}.
stop(_State) ->
ok.
%% internal
configure({K, New}) ->
case application:get_env(?APP, K) of
{ok, Specs} when is_list(Specs) ->
[configure_metric(New, Spec) || Spec <- Specs];
{ok, Spec} ->
configure_metric(New, Spec);
undefined -> ok
end.
configure_metric(New, Spec) when is_list(Spec) ->
apply(folsom_metrics, New, Spec);
configure_metric(New, Name) ->
folsom_metrics:New(Name).
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