69 lines
1.6 KiB
Elixir
69 lines
1.6 KiB
Elixir
## This Source Code Form is subject to the terms of the Mozilla Public
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## License, v. 2.0. If a copy of the MPL was not distributed with this
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## file, You can obtain one at https://mozilla.org/MPL/2.0/.
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##
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## Copyright (c) 2007-2021 VMware, Inc. or its affiliates. All rights reserved.
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defmodule RabbitMQ.CLI.InformationUnit do
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require MapSet
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@kilobyte_bytes 1000
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@megabyte_bytes @kilobyte_bytes * 1000
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@gigabyte_bytes @megabyte_bytes * 1000
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@terabyte_bytes @gigabyte_bytes * 1000
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def known_units() do
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MapSet.new([
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"bytes",
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"kb",
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"kilobytes",
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"mb",
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"megabytes",
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"gb",
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"gigabytes",
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"tb",
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"terabytes"
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])
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end
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def parse(val) do
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:rabbit_resource_monitor_misc.parse_information_unit(val)
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end
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def convert(bytes, "bytes") do
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bytes
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end
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def convert(bytes, unit) do
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do_convert(bytes, String.downcase(unit))
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end
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def known_unit?(val) do
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MapSet.member?(known_units(), String.downcase(val))
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end
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defp do_convert(bytes, "kb") do
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Float.round(bytes / @kilobyte_bytes, 4)
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end
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defp do_convert(bytes, "kilobytes"), do: do_convert(bytes, "kb")
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defp do_convert(bytes, "mb") do
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Float.round(bytes / @megabyte_bytes, 4)
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end
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defp do_convert(bytes, "megabytes"), do: do_convert(bytes, "mb")
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defp do_convert(bytes, "gb") do
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Float.round(bytes / @gigabyte_bytes, 4)
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end
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defp do_convert(bytes, "gigabytes"), do: do_convert(bytes, "gb")
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defp do_convert(bytes, "tb") do
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Float.round(bytes / @terabyte_bytes, 4)
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end
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defp do_convert(bytes, "terabytes"), do: do_convert(bytes, "tb")
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end
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