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spawn_statestores lib statestores supervisor.ex
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lib/statestores/supervisor.ex

defmodule Statestores.Supervisor do
@moduledoc false
use Supervisor
@shutdown_timeout_ms 330_000
import Statestores.Util,
only: [
load_lookup_adapter: 0,
load_snapshot_adapter: 0,
load_projection_adapter: 0,
supervisor_process_logger: 1
]
def start_link(args) do
Supervisor.start_link(__MODULE__, args, name: __MODULE__, shutdown: @shutdown_timeout_ms)
end
def child_spec() do
%{
id: __MODULE__,
start: {__MODULE__, :start_link, [[]]}
}
end
@impl true
def init(_args) do
lookup_adapter = load_lookup_adapter()
snapshot_adapter = load_snapshot_adapter()
projection_adapter = load_projection_adapter()
case System.get_env("MIX_ENV") do
env when env in ["dev", "test"] ->
Statestores.Migrator.migrate(snapshot_adapter)
Statestores.Migrator.migrate(lookup_adapter)
_ ->
# TODO: migrate via job in production (future release)
Statestores.Migrator.migrate(snapshot_adapter)
Statestores.Migrator.migrate(lookup_adapter)
end
children =
[
supervisor_process_logger(__MODULE__),
Statestores.Vault,
snapshot_adapter,
lookup_adapter,
projection_adapter
]
|> maybe_add_native_children(snapshot_adapter)
Supervisor.init(children, strategy: :one_for_one)
end
def maybe_add_native_children(children, Statestores.Adapters.NativeSnapshotAdapter) do
children ++ Kernel.apply(Statestores.Adapters.Native.Children, :get_children, [])
end
def maybe_add_native_children(children, _), do: children
end