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lib/event_store/registration/registration.ex

defmodule EventStore.Registration do
@moduledoc """
Process registry specification
"""
defmacro __using__(_) do
registry = registry_provider()
quote do
@registry unquote(registry)
use unquote(registry)
end
end
@doc """
Starts a process using the given module/function/args parameters, and registers the pid with the given name.
"""
@callback register_name(name :: term, module :: atom, function :: atom, args :: [term]) :: {:ok, pid} | {:error, term}
@doc """
Get the pid of a registered name.
"""
@callback whereis_name(term) :: pid | :undefined
@doc """
Publish events
"""
@callback publish_events(stream_uuid :: term, events :: list(EventStore.RecordedEvent.t)) :: :ok
# Get the configured registry provider, defaults to `:local` if not configured
defp registry_provider do
case Application.get_env(:eventstore, :registry, :local) do
:local -> EventStore.Registration.LocalRegistry
:distributed -> EventStore.Registration.Distributed
unknown -> raise ArgumentError, message: "Unknown `:registry` setting in config: #{inspect unknown}"
end
end
end