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telemetria

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The helper application that simplifies and standardizes telemetry usage.

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telemetria lib options.ex
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lib/options.ex 

defmodule Telemetria.Options do

  @moduledoc false



  use Boundary, deps: [], exports: []



  @spec list([any()], [{module(), atom()} | {module(), atom(), [any()]}]) ::

          {:ok, [any()]} | {:error, binary()}

  @doc false

  def list(values, checkers) do

    values

    |> Enum.all?(fn value ->

      Enum.any?(checkers, fn

        {m, f} -> apply(m, f, [value])

        {m, f, args} -> apply(m, f, [value | args])

      end)

    end)

    |> if(

      do: {:ok, values},

      else: {:error, "Expected list of elements of specified types, got #{inspect(values)}."}

    )

  end



  @schema [

    otp_app: [

      type: :atom,

      required: true,

      doc: "OTP application this telemetry is attached to."

    ],

    events: [

      type:

        {:custom, Telemetria.Options, :list,

         [[{Telemetria.Options, :list, [[{Kernel, :is_atom, []}]]}]]},

      required: true,

      doc: """

      The application-specific events.



      See `:telemetry.event_prefix/0` and `:telemetry.event_name/0`.

      """

    ],

    handler: [

      type: :mfa,

      default: {Telemetria.Handler, :handle_event, 4},

      doc: "Event handler for this application’s telemetry events. Arity must be 4."

    ]

  ]



  @doc false

  @spec schema :: NimbleOptions.schema()

  def schema, do: @schema

end



NimbleOptions.validate!(Application.get_all_env(:telemetria), Telemetria.Options.schema())