defmodule MyEventHandler do
  require Logger
  use GenEvent

  def handle_event(:boom, state) do
    1 = 2
  end

  def handle_event(event, state) do
    Logger.info("Received #{inspect event} event")

    {:ok, state}
  end
end

defmodule MySupervisor do
  use Supervisor

  @evt_mgr_name :my_event_manager
  @mon_han_name :my_mon_handler

  def start_link, do: Supervisor.start_link(__MODULE__, [])

  def init(_) do
    config = MonHandler.get_config(@evt_mgr_name, MyEventHandler)

    children = [
      worker(GenEvent, [[name: @evt_mgr_name]]),
      worker(MonHandler, [config])
    ]

    opts = [strategy: :one_for_one, name: __MODULE__]

    supervise children, opts
  end
end