| %% Copyright (c) 2011-2012 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. |
| |
| %% @doc Helper functions for working with lager's runtime config |
| |
| -module(lager_config). |
| |
| -include("lager.hrl"). |
| |
| -export([new/0, get/1, get/2, set/2]). |
| |
| -define(TBL, lager_config). |
| |
| new() -> |
| %% set up the ETS configuration table |
| _ = try ets:new(?TBL, [named_table, public, set, {keypos, 1}, {read_concurrency, true}]) of |
| _Result -> |
| ok |
| catch |
| error:badarg -> |
| ?INT_LOG(warning, "Table ~p already exists", [?TBL]) |
| end, |
| %% use insert_new here so that if we're in an appup we don't mess anything up |
| %% |
| %% until lager is completely started, allow all messages to go through |
| ets:insert_new(?TBL, {loglevel, {element(2, lager_util:config_to_mask(debug)), []}}), |
| ok. |
| |
| |
| get(Key) -> |
| case ets:lookup(?TBL, Key) of |
| [] -> |
| undefined; |
| [{Key, Res}] -> |
| Res |
| end. |
| |
| get(Key, Default) -> |
| try ?MODULE:get(Key) of |
| undefined -> |
| Default; |
| Res -> |
| Res |
| catch |
| _:_ -> |
| Default |
| end. |
| |
| set(Key, Value) -> |
| ets:insert(?TBL, {Key, Value}). |
| |