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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_queue_location_client_local).
-behaviour(rabbit_queue_master_locator).
-include_lib("rabbit_common/include/rabbit.hrl").
-include("amqqueue.hrl").
-export([description/0, queue_master_location/1]).
-rabbit_boot_step({?MODULE,
[{description, "locate queue master client local"},
{mfa, {rabbit_registry, register,
[queue_master_locator,
<<"client-local">>, ?MODULE]}},
{requires, rabbit_registry},
{enables, kernel_ready}]}).
%%---------------------------------------------------------------------------
%% Queue Master Location Callbacks
%%---------------------------------------------------------------------------
description() ->
[{description, <<"Locate queue master node as the client local node">>}].
queue_master_location(Q) when ?is_amqqueue(Q) ->
%% unlike with other locator strategies we do not check node maintenance
%% status for two reasons:
%%
%% * nodes in maintenance mode will drop their client connections
%% * with other strategies, if no nodes are available, the current node
%% is returned but this strategy already does just that
{ok, node()}.
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