| % 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. |
| |
| -module(ddoc_cache_sup). |
| -behaviour(supervisor). |
| |
| |
| -export([ |
| start_link/0, |
| init/1 |
| ]). |
| |
| |
| start_link() -> |
| supervisor:start_link({local, ?MODULE}, ?MODULE, []). |
| |
| |
| init([]) -> |
| Children = [ |
| { |
| ddoc_cache_lru, |
| {ets_lru, start_link, [ddoc_cache_lru, lru_opts()]}, |
| permanent, |
| 5000, |
| worker, |
| [ets_lru] |
| }, |
| { |
| ddoc_cache_opener, |
| {ddoc_cache_opener, start_link, []}, |
| permanent, |
| 5000, |
| worker, |
| [ddoc_cache_opener] |
| } |
| ], |
| {ok, {{one_for_one, 5, 10}, Children}}. |
| |
| |
| lru_opts() -> |
| case application:get_env(ddoc_cache, max_objects) of |
| {ok, MxObjs} when is_integer(MxObjs), MxObjs > 0 -> |
| [{max_objects, MxObjs}]; |
| _ -> |
| [] |
| end ++ |
| case application:get_env(ddoc_cache, max_size) of |
| {ok, MxSize} when is_integer(MxSize), MxSize > 0 -> |
| [{max_size, MxSize}]; |
| _ -> |
| [] |
| end ++ |
| case application:get_env(ddoc_cache, max_lifetime) of |
| {ok, MxLT} when is_integer(MxLT), MxLT > 0 -> |
| [{max_lifetime, MxLT}]; |
| _ -> |
| [] |
| end. |