File: formatter_behaviour.ex

package info (click to toggle)
rabbitmq-server 4.0.5-8
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 37,972 kB
  • sloc: erlang: 257,835; javascript: 22,466; sh: 3,037; makefile: 2,517; python: 1,966; xml: 646; cs: 335; java: 244; ruby: 212; php: 100; perl: 63; awk: 13
file content (44 lines) | stat: -rw-r--r-- 1,351 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
## 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) 2007-2023 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  All rights reserved.

# Formats returned values e.g. to human-readable text or JSON.
defmodule RabbitMQ.CLI.FormatterBehaviour do
  alias RabbitMQ.CLI.Core.Helpers

  @callback format_output(any, map()) :: String.t() | [String.t()]
  @callback format_stream(Enumerable.t(), map()) :: Enumerable.t()

  @optional_callbacks switches: 0,
                      aliases: 0

  @callback switches() :: Keyword.t()
  @callback aliases() :: Keyword.t()

  def switches(formatter) do
    Helpers.apply_if_exported(formatter, :switches, [], [])
  end

  def aliases(formatter) do
    Helpers.apply_if_exported(formatter, :aliases, [], [])
  end

  def module_name(nil) do
    nil
  end

  def module_name(formatter) do
    mod = formatter |> String.downcase() |> Macro.camelize()
    Module.safe_concat("RabbitMQ.CLI.Formatters", mod)
  end

  def machine_readable?(nil) do
    false
  end

  def machine_readable?(formatter) do
    Helpers.apply_if_exported(module_name(formatter), :machine_readable?, [], false)
  end
end