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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 http://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) 2007-2019 Pivotal Software, Inc. All rights reserved.
# Should be used by commands that require rabbit app to be stopped
# but need no other execution environment validators.
defmodule RabbitMQ.CLI.Core.AcceptsOnePositiveIntegerArgument do
defmacro __using__(_) do
quote do
def validate(args, _) when length(args) == 0 do
{:validation_failure, :not_enough_args}
end
def validate(args, _) when length(args) > 1 do
{:validation_failure, :too_many_args}
end
def validate([value], _) when is_integer(value) do
:ok
end
def validate([value], _) do
case Integer.parse(value) do
{n, _} when n >= 1 -> :ok
:error -> {:validation_failure, {:bad_argument, "Argument must be a positive integer"}}
end
end
def validate(_, _), do: :ok
end
end
end
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