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Copy pathhandler.rs
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54 lines (47 loc) · 1.6 KB
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// Copyright 2021 Datafuse Labs
//
// 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.
use std::sync::Arc;
use databend_common_base::base::GlobalInstance;
use databend_common_exception::Result;
use databend_common_meta_app::schema::CreateTableReq;
use databend_common_sql::plans::CreateTablePlan;
#[async_trait::async_trait]
pub trait AttachTableHandler: Sync + Send {
async fn build_attach_table_request(
&self,
storage_prefix: &str,
plan: &CreateTablePlan,
) -> Result<CreateTableReq>;
}
pub struct AttachTableHandlerWrapper {
handler: Box<dyn AttachTableHandler>,
}
impl AttachTableHandlerWrapper {
pub fn new(handler: Box<dyn AttachTableHandler>) -> Self {
Self { handler }
}
#[async_backtrace::framed]
pub async fn build_attach_table_request(
&self,
storage_prefix: &str,
plan: &CreateTablePlan,
) -> Result<CreateTableReq> {
self.handler
.build_attach_table_request(storage_prefix, plan)
.await
}
}
pub fn get_attach_table_handler() -> Arc<AttachTableHandlerWrapper> {
GlobalInstance::get()
}