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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.
alias RabbitMQ.CLI.Formatters.FormatterHelpers
defmodule RabbitMQ.CLI.DefaultOutput do
# When `use RabbitMQ.CLI.DefaultOutput` is invoked,
# this will define output/2 that delegates to RabbitMQ.CLI.DefaultOutput.output/2.
defmacro __using__(_) do
quote do
def output(result, opts) do
RabbitMQ.CLI.DefaultOutput.output(result, opts)
end
end
end
def output(result, opts \\ %{}) do
format_output(normalize_output(result, opts))
end
def mnesia_running_error(node_name) do
"Mnesia is still running on node #{node_name}.\n" <>
"Please stop RabbitMQ with 'rabbitmqctl stop_app' first."
end
defp normalize_output(:ok, %{node: node_name, formatter: "json"}) do
{:ok, %{"result" => "ok", "node" => node_name}}
end
defp normalize_output(:ok, _opts), do: :ok
defp normalize_output({:ok, value}, %{node: node_name, formatter: "json"}) do
{:ok, %{"result" => "ok", "node" => node_name, "value" => value}}
end
defp normalize_output({:ok, _} = input, _opts), do: input
defp normalize_output({:stream, _} = input, _opts), do: input
defp normalize_output({:badrpc_multi, _, _} = input, _opts), do: {:error, input}
defp normalize_output({:badrpc, :nodedown} = input, _opts), do: {:error, input}
defp normalize_output({:badrpc, :timeout} = input, _opts), do: {:error, input}
defp normalize_output({:badrpc, {:timeout, _n}} = input, _opts), do: {:error, input}
defp normalize_output({:badrpc, {:timeout, _n, _msg}} = input, _opts), do: {:error, input}
defp normalize_output({:badrpc, {:EXIT, reason}}, _opts), do: {:error, reason}
defp normalize_output({:error, exit_code, string}, _opts) when is_integer(exit_code) do
{:error, exit_code, to_string(string)}
end
defp normalize_output({:error, format, args}, _opts)
when (is_list(format) or is_binary(format)) and is_list(args) do
{:error, to_string(:rabbit_misc.format(format, args))}
end
defp normalize_output({:error, _} = input, _opts), do: input
defp normalize_output({:error_string, string}, _opts) do
{:error, to_string(string)}
end
defp normalize_output(unknown, _opts) when is_atom(unknown), do: {:error, unknown}
defp normalize_output({unknown, _} = input, _opts) when is_atom(unknown), do: {:error, input}
defp normalize_output(result, _opts) when not is_atom(result), do: {:ok, result}
defp format_output({:error, _} = result) do
result
end
defp format_output({:error, _, _} = result) do
result
end
defp format_output(:ok) do
:ok
end
defp format_output({:ok, output}) do
case Enumerable.impl_for(output) do
nil ->
{:ok, output}
## Do not streamify plain maps
Enumerable.Map ->
{:ok, output}
## Do not streamify proplists
Enumerable.List ->
case FormatterHelpers.proplist?(output) do
true -> {:ok, output}
false -> {:stream, output}
end
_ ->
{:stream, output}
end
end
defp format_output({:stream, stream}) do
{:stream, stream}
end
end
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