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path: root/deps/rabbitmq_stomp/src/Elixir.RabbitMQ.CLI.Ctl.Commands.ListStompConnectionsCommand.erl
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%% The contents of this file are subject to the Mozilla Public License
%% Version 1.1 (the "License"); you may not use this file except in
%% compliance with the License. You may obtain a copy of the License
%% at https://www.mozilla.org/MPL/
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and
%% limitations under the License.
%%
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is GoPivotal, Inc.
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates.  All rights reserved.

-module('Elixir.RabbitMQ.CLI.Ctl.Commands.ListStompConnectionsCommand').

-include("rabbit_stomp.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 STOMP connections on the target node">>.

help_section() ->
    {plugin, stomp}.

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([<<"session_id">>, <<"conn_name">>], Opts);
merge_defaults(Args, Opts) ->
    {Args, maps:merge(#{verbose => false}, Opts)}.

usage() ->
    <<"list_stomp_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() ->
    [?STOMP_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,
    Nodes = 'Elixir.RabbitMQ.CLI.Core.Helpers':nodes_in_cluster(NodeName),

    'Elixir.RabbitMQ.CLI.Ctl.RpcStream':receive_list_items(
        NodeName,
        rabbit_stomp,
        emit_connection_info_all,
        [Nodes, InfoKeys],
        Timeout,
        InfoKeys,
        length(Nodes)).

banner(_, _) -> <<"Listing STOMP connections ...">>.

output(Result, _Opts) ->
    'Elixir.RabbitMQ.CLI.DefaultOutput':output(Result).