Move token_id migrator to Explorer application

apps/explorer/lib/explorer/application.ex

@@ -5,7 +5,7 @@ defmodule Explorer.Application do
 
   use Application
 
-  alias Explorer.Admin
+  alias Explorer.{Admin, TokenTransferTokenIdMigration}
 
   alias Explorer.Chain.Cache.{
     Accounts,
@@ -68,7 +68,8 @@ defmodule Explorer.Application do
       Transactions,
       Accounts,
       Uncles,
-      {Redix, redix_opts()}
+      {Redix, redix_opts()},
+      {TokenTransferTokenIdMigration.Supervisor, [[]]}
     ]
 
     children = base_children ++ configurable_children()

apps/explorer/lib/explorer/token_transfer_token_id_migration/lowest_block_number_updater.ex

@@ -1,4 +1,4 @@
-defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.LowestBlockNumberUpdater do
+defmodule Explorer.TokenTransferTokenIdMigration.LowestBlockNumberUpdater do
   @moduledoc """
   Collects processed block numbers from token id migration workers
   and updates last_processed_block_number according to them.

apps/explorer/lib/explorer/token_transfer_token_id_migration/supervisor.ex

@@ -1,4 +1,4 @@
-defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Supervisor do
+defmodule Explorer.TokenTransferTokenIdMigration.Supervisor do
   @moduledoc """
   Supervises parts of token id migration process.
 
@@ -35,8 +35,8 @@ defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Supervisor do
   """
   use Supervisor
 
+  alias Explorer.TokenTransferTokenIdMigration.{LowestBlockNumberUpdater, Worker}
   alias Explorer.Utility.TokenTransferTokenIdMigratorProgress
-  alias Indexer.Fetcher.TokenTransferTokenIdMigration.{LowestBlockNumberUpdater, Worker}
 
   @default_first_block 0
   @default_workers_count 1
@@ -47,20 +47,17 @@ defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Supervisor do
 
   @impl true
   def init(_) do
-    first_block = Application.get_env(:indexer, :token_id_migration)[:first_block] || @default_first_block
+    first_block = Application.get_env(:explorer, :token_id_migration)[:first_block] || @default_first_block
     last_block = TokenTransferTokenIdMigratorProgress.get_last_processed_block_number()
 
     if last_block > first_block do
-      workers_count = Application.get_env(:indexer, :token_id_migration)[:concurrency] || @default_workers_count
+      workers_count = Application.get_env(:explorer, :token_id_migration)[:concurrency] || @default_workers_count
 
       workers =
         Enum.map(1..workers_count, fn id ->
-          worker_name = build_worker_name(id)
-
           Supervisor.child_spec(
-            {Worker,
-             idx: id, first_block: first_block, last_block: last_block, step: workers_count - 1, name: worker_name},
-            id: worker_name,
+            {Worker, idx: id, first_block: first_block, last_block: last_block, step: workers_count - 1},
+            id: {Worker, id},
             restart: :transient
           )
         end)
@@ -70,6 +67,4 @@ defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Supervisor do
       :ignore
     end
   end
-
-  defp build_worker_name(worker_id), do: :"#{Worker}_#{worker_id}"
 end

apps/explorer/lib/explorer/token_transfer_token_id_migration/worker.ex

@@ -1,7 +1,7 @@
-defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Worker do
+defmodule Explorer.TokenTransferTokenIdMigration.Worker do
   @moduledoc """
   Performs the migration of TokenTransfer token_id to token_ids by batches.
-  Full algorithm is in the 'Indexer.Fetcher.TokenTransferTokenIdMigration.Supervisor' module doc.
+  Full algorithm is in the 'Explorer.TokenTransferTokenIdMigration.Supervisor' module doc.
   """
   use GenServer
 
@@ -9,18 +9,18 @@ defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.Worker do
 
   alias Explorer.Chain.TokenTransfer
   alias Explorer.Repo
-  alias Indexer.Fetcher.TokenTransferTokenIdMigration.LowestBlockNumberUpdater
+  alias Explorer.TokenTransferTokenIdMigration.LowestBlockNumberUpdater
 
   @default_batch_size 500
   @interval 10
 
-  def start_link(idx: idx, first_block: first, last_block: last, step: step, name: name) do
-    GenServer.start_link(__MODULE__, %{idx: idx, bottom_block: first, last_block: last, step: step}, name: name)
+  def start_link(idx: idx, first_block: first, last_block: last, step: step) do
+    GenServer.start_link(__MODULE__, %{idx: idx, bottom_block: first, last_block: last, step: step})
   end
 
   @impl true
   def init(%{idx: idx, bottom_block: bottom_block, last_block: last_block, step: step}) do
-    batch_size = Application.get_env(:indexer, :token_id_migration)[:batch_size] || @default_batch_size
+    batch_size = Application.get_env(:explorer, :token_id_migration)[:batch_size] || @default_batch_size
     range = calculate_new_range(last_block, bottom_block, batch_size, idx - 1)
 
     schedule_next_update()

apps/explorer/test/explorer/token_transfer_token_id_migration/lowest_block_number_updater_test.exs

@@ -1,9 +1,9 @@
-defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.LowestBlockNumberUpdaterTest do
+defmodule Explorer.TokenTransferTokenIdMigration.LowestBlockNumberUpdaterTest do
   use Explorer.DataCase
 
   alias Explorer.Repo
+  alias Explorer.TokenTransferTokenIdMigration.LowestBlockNumberUpdater
   alias Explorer.Utility.TokenTransferTokenIdMigratorProgress
-  alias Indexer.Fetcher.TokenTransferTokenIdMigration.LowestBlockNumberUpdater
 
   describe "Add range and update last processed block number" do
     test "add_range/2" do

apps/explorer/test/explorer/token_transfer_token_id_migration/worker_test.ex

@@ -2,9 +2,8 @@ defmodule Indexer.Fetcher.TokenTransferTokenIdMigration.WorkerTest do
   use Explorer.DataCase
 
   alias Explorer.Repo
-  alias Indexer.Fetcher.TokenTransferTokenIdMigration.Worker
+  alias Explorer.TokenTransferTokenIdMigration.{LowestBlockNumberUpdater, Worker}
   alias Explorer.Utility.TokenTransferTokenIdMigratorProgress
-  alias Indexer.Fetcher.TokenTransferTokenIdMigration.LowestBlockNumberUpdater
 
   describe "Move TokenTransfer token_id to token_ids" do
     test "Move token_ids and update last processed block number" do

apps/indexer/lib/indexer/supervisor.ex

@@ -26,7 +26,6 @@ defmodule Indexer.Supervisor do
     TokenBalance,
     TokenInstance,
     TokenTotalSupplyOnDemand,
-    TokenTransferTokenIdMigration,
     TokenUpdater,
     UncleBlock
   }
@@ -140,8 +139,7 @@ defmodule Indexer.Supervisor do
          [[json_rpc_named_arguments: json_rpc_named_arguments, memory_monitor: memory_monitor]]},
         {BlocksTransactionsMismatch.Supervisor,
          [[json_rpc_named_arguments: json_rpc_named_arguments, memory_monitor: memory_monitor]]},
-        {PendingOpsCleaner, [[], []]},
-        {TokenTransferTokenIdMigration.Supervisor, [[]]}
+        {PendingOpsCleaner, [[], []]}
       ]
       |> List.flatten()
 

config/runtime.exs

@@ -357,6 +357,15 @@ config :explorer, Explorer.Account,
     template: System.get_env("ACCOUNT_SENDGRID_TEMPLATE")
   ]
 
+{token_id_migration_first_block, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_FIRST_BLOCK", "0"))
+{token_id_migration_concurrency, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_CONCURRENCY", "1"))
+{token_id_migration_batch_size, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_BATCH_SIZE", "500"))
+
+config :explorer, :token_id_migration,
+  first_block: token_id_migration_first_block,
+  concurrency: token_id_migration_concurrency,
+  batch_size: token_id_migration_batch_size
+
 ###############
 ### Indexer ###
 ###############
@@ -458,15 +467,6 @@ config :indexer, Indexer.Block.Catchup.Fetcher,
   batch_size: blocks_catchup_fetcher_batch_size,
   concurrency: blocks_catchup_fetcher_concurrency
 
-{token_id_migration_first_block, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_FIRST_BLOCK", "0"))
-{token_id_migration_concurrency, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_CONCURRENCY", "1"))
-{token_id_migration_batch_size, _} = Integer.parse(System.get_env("TOKEN_ID_MIGRATION_BATCH_SIZE", "500"))
-
-config :indexer, :token_id_migration,
-  first_block: token_id_migration_first_block,
-  concurrency: token_id_migration_concurrency,
-  batch_size: token_id_migration_batch_size
-
 Code.require_file("#{config_env()}.exs", "config/runtime")
 
 for config <- "../apps/*/config/runtime/#{config_env()}.exs" |> Path.expand(__DIR__) |> Path.wildcard() do