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extreme_system

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Building blocks for distributed systems

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extreme_system lib system aggregate_group.ex
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lib/system/aggregate_group.ex 

defmodule Extreme.System.AggregateGroup do

  use     Supervisor

  alias   Extreme.System.AggregateSup

  alias   Extreme.System.PidRegistry



  def start_link(group_name, aggregate_module) do

    name = "#{group_name}.AggregateGroup" |> String.to_atom

    Supervisor.start_link __MODULE__, {group_name, aggregate_module}, name: name

  end



  def spawn_new(group_name, key, child_params \\ []) do

    {:ok, pid} = group_name |> sup_name      |> AggregateSup.start_child(child_params)

    :ok        = group_name |> registry_name |> PidRegistry.register(key, pid)

    {:ok, pid}

  end



  def get_registered(group_name, key),

    do: group_name |> registry_name |> PidRegistry.get(key)





  def init({group_name, aggregate_module}) do

    children = [

      supervisor( AggregateSup, [aggregate_module, [name: sup_name(group_name)]]),

      worker(     PidRegistry,  [[name: registry_name(group_name)]])

    ]

    supervise children, strategy: :one_for_all

  end





  defp sup_name(group_name),      do: "#{group_name}.AggregateSup"      |> String.to_atom

  defp registry_name(group_name), do: "#{group_name}.AggregateRegistry" |> String.to_atom

end