refactor(app): route put/get/listv2 through usecases (#1910)

rustfs/src/app/admin_usecase.rs

@@ -0,0 +1,67 @@
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Admin application use-case contracts.
+#![allow(dead_code)]
+
+use crate::app::context::AppContext;
+use crate::error::ApiError;
+use rustfs_ecstore::admin_server_info::get_server_info;
+use rustfs_madmin::InfoMessage;
+use std::sync::Arc;
+
+pub type AdminUsecaseResult<T> = Result<T, ApiError>;
+
+#[derive(Debug, Clone, Copy, Default, PartialEq, Eq)]
+pub struct QueryServerInfoRequest {
+    pub include_pools: bool,
+}
+
+pub struct QueryServerInfoResponse {
+    pub info: InfoMessage,
+}
+
+impl std::fmt::Debug for QueryServerInfoResponse {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("QueryServerInfoResponse").finish_non_exhaustive()
+    }
+}
+
+#[async_trait::async_trait]
+pub trait AdminUsecase: Send + Sync {
+    async fn query_server_info(&self, req: QueryServerInfoRequest) -> AdminUsecaseResult<QueryServerInfoResponse>;
+}
+
+#[derive(Clone)]
+pub struct DefaultAdminUsecase {
+    context: Arc<AppContext>,
+}
+
+impl DefaultAdminUsecase {
+    pub fn new(context: Arc<AppContext>) -> Self {
+        Self { context }
+    }
+
+    pub fn context(&self) -> Arc<AppContext> {
+        self.context.clone()
+    }
+}
+
+#[async_trait::async_trait]
+impl AdminUsecase for DefaultAdminUsecase {
+    async fn query_server_info(&self, req: QueryServerInfoRequest) -> AdminUsecaseResult<QueryServerInfoResponse> {
+        let info = get_server_info(req.include_pools).await;
+        Ok(QueryServerInfoResponse { info })
+    }
+}