  Copyright 2011 Cloudant
%
  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
%
%   -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(monic_sup).

-behaviour(supervisor).

%% External exports
-export([start_link/0, upgrade/0]).

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

    ( ) - > ServerRet
%% @doc API for starting the supervisor.
start_link() ->
    supervisor:start_link({local, ?MODULE}, ?MODULE, []).

  @spec upgrade ( ) - > ok
%% @doc Add processes if necessary.
upgrade() ->
    {ok, {_, Specs}} = init([]),

    Old = sets:from_list(
            [Name || {Name, _, _, _} <- supervisor:which_children(?MODULE)]),
    New = sets:from_list([Name || {Name, _, _, _, _, _} <- Specs]),
    Kill = sets:subtract(Old, New),

    sets:fold(fun (Id, ok) ->
                      supervisor:terminate_child(?MODULE, Id),
                      supervisor:delete_child(?MODULE, Id),
                      ok
              end, ok, Kill),

    [supervisor:start_child(?MODULE, Spec) || Spec <- Specs],
    ok.

  @spec init ( [ ] ) - > SupervisorTree
%% @doc supervisor callback.
init([]) ->
    Ip = case os:getenv("WEBMACHINE_IP") of false -> "0.0.0.0"; Any -> Any end,
    {ok, Dispatch} = file:consult(filename:join(
                         [filename:dirname(code:which(?MODULE)),
                          "..", "priv", "dispatch.conf"])),
    WebConfig = [
                 {ip, Ip},
                 {port, 8000},
                 {log_dir, "priv/log"},
                 {dispatch, Dispatch}],
    Web = {webmachine_mochiweb,
           {webmachine_mochiweb, start, [WebConfig]},
           permanent, 5000, worker, dynamic},
    LruConfig = [100],
    Lru = {monic_file_lru,
            {monic_file_lru, start_link, LruConfig},
            permanent, 5000, worker, dynamic},
    Processes = [Web, Lru],
    {ok, { {one_for_one, 10, 10}, Processes} }.


 use this file except in compliance with the License. You may obtain a copy of
 the License at

   -2.0

 Unless required by applicable law or agreed to in writing, software
 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 License for the specific language governing permissions and limitations under
 the License.
 External exports
 supervisor callbacks
 @doc API for starting the supervisor.
 @doc Add processes if necessary.
 @doc supervisor callback.
  Copyright 2011 Cloudant
  Licensed under the Apache License , Version 2.0 ( the " License " ) ; you may not
  distributed under the License is distributed on an " AS IS " BASIS , WITHOUT


-module(monic_sup).

-behaviour(supervisor).

-export([start_link/0, upgrade/0]).

-export([init/1]).

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

  @spec upgrade ( ) - > ok
upgrade() ->
    {ok, {_, Specs}} = init([]),

    Old = sets:from_list(
            [Name || {Name, _, _, _} <- supervisor:which_children(?MODULE)]),
    New = sets:from_list([Name || {Name, _, _, _, _, _} <- Specs]),
    Kill = sets:subtract(Old, New),

    sets:fold(fun (Id, ok) ->
                      supervisor:terminate_child(?MODULE, Id),
                      supervisor:delete_child(?MODULE, Id),
                      ok
              end, ok, Kill),

    [supervisor:start_child(?MODULE, Spec) || Spec <- Specs],
    ok.

  @spec init ( [ ] ) - > SupervisorTree
init([]) ->
    Ip = case os:getenv("WEBMACHINE_IP") of false -> "0.0.0.0"; Any -> Any end,
    {ok, Dispatch} = file:consult(filename:join(
                         [filename:dirname(code:which(?MODULE)),
                          "..", "priv", "dispatch.conf"])),
    WebConfig = [
                 {ip, Ip},
                 {port, 8000},
                 {log_dir, "priv/log"},
                 {dispatch, Dispatch}],
    Web = {webmachine_mochiweb,
           {webmachine_mochiweb, start, [WebConfig]},
           permanent, 5000, worker, dynamic},
    LruConfig = [100],
    Lru = {monic_file_lru,
            {monic_file_lru, start_link, LruConfig},
            permanent, 5000, worker, dynamic},
    Processes = [Web, Lru],
    {ok, { {one_for_one, 10, 10}, Processes} }.
