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refactor(dup): move xandra select to exandra #1133

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Merged
Annopaolo merged 1 commit into from
Mar 13, 2025
Merged

refactor(dup): move xandra select to exandra #1133

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38 changes: 16 additions & 22 deletions apps/astarte_data_updater_plant/lib/astarte_data_updater_plant/trigger_policy/queries.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -18,36 +18,30 @@

defmodule Astarte.DataUpdaterPlant.TriggerPolicy.Queries do
require Logger
alias Astarte.Core.CQLUtils
alias Astarte.DataUpdaterPlant.Config

import Ecto.Query

alias Astarte.DataUpdaterPlant.Repo
alias Astarte.DataUpdaterPlant.DataUpdater.KvStore
alias Astarte.DataUpdaterPlant.DataUpdater.Realm

def retrieve_policy_name(realm_name, trigger_id) do
keyspace_name = Realm.keyspace_name(realm_name)

trigger_id =
trigger_id
|> :uuid.uuid_to_string()
|> to_string()

keyspace_name =
CQLUtils.realm_name_to_keyspace_name(realm_name, Config.astarte_instance_id!())

Xandra.Cluster.run(:xandra, &do_retrieve_policy_name(&1, keyspace_name, trigger_id))
end

defp do_retrieve_policy_name(conn, keyspace_name, trigger_id) do
retrieve_statement =
"SELECT value FROM #{keyspace_name}.kv_store WHERE group='trigger_to_policy' AND key=:trigger_id;"
query =
from kvstore in KvStore,
prefix: ^keyspace_name,
where: kvstore.group == "trigger_to_policy" and kvstore.key == ^trigger_id,
select: kvstore.value

with {:ok, prepared} <- Xandra.prepare(conn, retrieve_statement),
{:ok, %Xandra.Page{} = page} <-
Xandra.execute(conn, prepared, %{"trigger_id" => trigger_id}) do
case Enum.to_list(page) do
[%{"value" => policy_name}] -> {:ok, policy_name}
[] -> {:error, :policy_not_found}
end
else
{:error, error} ->
Logger.warning("Database error #{inspect(error)}", tag: "retrieve_policy_name_db_error")
{:error, error}
case Repo.one(query) do
nil -> {:error, :policy_not_found}
value -> {:ok, value}
end
end
end
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