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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('Elixir.RabbitMQ.CLI.Ctl.Commands.ListMqttConnectionsCommand').
-include("rabbit_mqtt.hrl").
-behaviour('Elixir.RabbitMQ.CLI.CommandBehaviour').
-export([formatter/0,
scopes/0,
switches/0,
aliases/0,
usage/0,
usage_additional/0,
usage_doc_guides/0,
banner/2,
validate/2,
merge_defaults/2,
run/2,
output/2,
description/0,
help_section/0]).
formatter() -> 'Elixir.RabbitMQ.CLI.Formatters.Table'.
scopes() -> [ctl, diagnostics].
switches() -> [{verbose, boolean}].
aliases() -> [{'V', verbose}].
description() -> <<"Lists MQTT connections on the target node">>.
help_section() ->
{plugin, mqtt}.
validate(Args, _) ->
case 'Elixir.RabbitMQ.CLI.Ctl.InfoKeys':validate_info_keys(Args,
?INFO_ITEMS) of
{ok, _} -> ok;
Error -> Error
end.
merge_defaults([], Opts) ->
merge_defaults([<<"client_id">>, <<"conn_name">>], Opts);
merge_defaults(Args, Opts) ->
{Args, maps:merge(#{verbose => false}, Opts)}.
usage() ->
<<"list_mqtt_connections [<column> ...]">>.
usage_additional() ->
Prefix = <<" must be one of ">>,
InfoItems = 'Elixir.Enum':join(lists:usort(?INFO_ITEMS), <<", ">>),
[
{<<"<column>">>, <<Prefix/binary, InfoItems/binary>>}
].
usage_doc_guides() ->
[?MQTT_GUIDE_URL].
run(Args, #{node := NodeName,
timeout := Timeout,
verbose := Verbose}) ->
InfoKeys = case Verbose of
true -> ?INFO_ITEMS;
false -> 'Elixir.RabbitMQ.CLI.Ctl.InfoKeys':prepare_info_keys(Args)
end,
%% a node uses the Raft-based collector to list connections, which knows about all connections in the cluster
%% so no need to reach out to all the nodes
Nodes = [NodeName],
'Elixir.RabbitMQ.CLI.Ctl.RpcStream':receive_list_items(
NodeName,
rabbit_mqtt,
emit_connection_info_all,
[Nodes, InfoKeys],
Timeout,
InfoKeys,
length(Nodes)).
banner(_, _) -> <<"Listing MQTT connections ...">>.
output(Result, _Opts) ->
'Elixir.RabbitMQ.CLI.DefaultOutput':output(Result).
|
