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%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(rabbit_federation_event).
-behaviour(gen_event).
-include_lib("rabbit_common/include/rabbit.hrl").
-export([add_handler/0, remove_handler/0]).
-export([init/1, handle_call/2, handle_event/2, handle_info/2,
terminate/2, code_change/3]).
-import(rabbit_misc, [pget/2]).
%%----------------------------------------------------------------------------
add_handler() ->
gen_event:add_handler(rabbit_event, ?MODULE, []).
remove_handler() ->
gen_event:delete_handler(rabbit_event, ?MODULE, []).
init([]) ->
{ok, []}.
handle_call(_Request, State) ->
{ok, not_understood, State}.
handle_event(#event{type = parameter_set,
props = Props0}, State) ->
Props = rabbit_data_coercion:to_list(Props0),
case {pget(component, Props), pget(name, Props)} of
{global, cluster_name} ->
rabbit_federation_parameters:adjust(everything);
_ ->
ok
end,
{ok, State};
handle_event(_Event, State) ->
{ok, State}.
handle_info(_Info, State) ->
{ok, State}.
terminate(_Arg, _State) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
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