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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.
defmodule RabbitMQ.CLI.Ctl.Commands.ListConsumersCommand do
alias RabbitMQ.CLI.Core.{DocGuide, Helpers}
alias RabbitMQ.CLI.Ctl.{InfoKeys, RpcStream}
@behaviour RabbitMQ.CLI.CommandBehaviour
def scopes(), do: [:ctl, :diagnostics]
use RabbitMQ.CLI.Core.AcceptsDefaultSwitchesAndTimeout
@info_keys ~w(queue_name channel_pid consumer_tag
ack_required prefetch_count active activity_status arguments)a
def info_keys(), do: @info_keys
def merge_defaults([], opts) do
{Enum.map(@info_keys -- [:activity_status], &Atom.to_string/1),
Map.merge(%{vhost: "/", table_headers: true}, opts)}
end
def merge_defaults(args, opts) do
{args, Map.merge(%{vhost: "/", table_headers: true}, opts)}
end
def validate(args, _) do
case InfoKeys.validate_info_keys(args, @info_keys) do
{:ok, _} -> :ok
err -> err
end
end
use RabbitMQ.CLI.Core.RequiresRabbitAppRunning
def run([_ | _] = args, %{node: node_name, timeout: timeout, vhost: vhost}) do
info_keys = InfoKeys.prepare_info_keys(args)
Helpers.with_nodes_in_cluster(node_name, fn nodes ->
RpcStream.receive_list_items_with_fun(
node_name,
[{:rabbit_amqqueue,
:emit_consumers_all,
[nodes, vhost]}],
timeout,
info_keys,
Kernel.length(nodes),
fn item -> fill_consumer_active_fields(item) end
)
end)
end
use RabbitMQ.CLI.DefaultOutput
def formatter(), do: RabbitMQ.CLI.Formatters.Table
def usage() do
"list_consumers [--vhost <vhost>] [--no-table-headers] [<column> ...]"
end
def help_section(), do: :observability_and_health_checks
def description(), do: "Lists all consumers for a vhost"
def usage_additional() do
[
["<column>", "must be one of " <> Enum.join(Enum.sort(@info_keys), ", ")]
]
end
def usage_doc_guides() do
[
DocGuide.consumers()
]
end
def banner(_, %{vhost: vhost}), do: "Listing consumers in vhost #{vhost} ..."
#
# Implementation
#
# add missing fields if response comes from node < 3.8
def fill_consumer_active_fields({[], {chunk, :continue}}) do
{[], {chunk, :continue}}
end
def fill_consumer_active_fields({items, {chunk, :continue}}) do
{Enum.map(items, fn item ->
case Keyword.has_key?(item, :active) do
true ->
item
false ->
Keyword.drop(item, [:arguments])
++ [active: true, activity_status: :up]
++ [arguments: Keyword.get(item, :arguments, [])]
end
end), {chunk, :continue}}
end
def fill_consumer_active_fields(v) do
v
end
end
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