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opentelemetry_api

0.5.0
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OpenTelemetry API

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opentelemetry_api lib open_telemetry value_observer.ex
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lib/open_telemetry/value_observer.ex 

defmodule OpenTelemetry.ValueObserver do

  @moduledoc """



      require OpenTelemetry.ValueObserver



      OpenTelemetry.ValueObserver.set_callback("some.counter", fn o -> OpenTelemetry.ValueObserver.observe(o, 33, []))

  """



  defmacro new(name, opts \\ %{}) do

    quote do

      :otel_value_observer.new(:opentelemetry.get_meter(__MODULE__), unquote(name), unquote(opts))

    end

  end



  defmacro set_callback(observer, callback) do

    quote do

      :otel_meter.set_observer_callback(

        :opentelemetry.get_meter(__MODULE__),

        unquote(observer),

        unquote(callback)

      )

    end

  end



  defdelegate definition(name, opts), to: :otel_value_observer

  defdelegate observe(observer_result, number, label_set), to: :otel_value_observer

end