// Copyright 2023 Greptime 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.
use api::v1::region::{DeleteRequest, InsertRequest};
use api::v1::Rows;
use partition::manager::PartitionRuleManager;
use snafu::ResultExt;
use store_api::storage::{RegionId, TableId};
use crate::error::{Result, SplitDeleteSnafu, SplitInsertSnafu};
pub struct Partitioner<'a> {
partition_manager: &'a PartitionRuleManager,
}
impl<'a> Partitioner<'a> {
pub fn new(partition_manager: &'a PartitionRuleManager) -> Self {
Self { partition_manager }
}
pub async fn partition_insert_requests(
&self,
table_id: TableId,
rows: Rows,
) -> Result<Vec<InsertRequest>> {
let requests = self
.partition_manager
.split_rows(table_id, rows)
.await
.context(SplitInsertSnafu)?
.into_iter()
.map(|(region_number, rows)| InsertRequest {
region_id: RegionId::new(table_id, region_number).into(),
rows: Some(rows),
})
.collect();
Ok(requests)
}
pub async fn partition_delete_requests(
&self,
table_id: TableId,
rows: Rows,
) -> Result<Vec<DeleteRequest>> {
let requests = self
.partition_manager
.split_rows(table_id, rows)
.await
.context(SplitDeleteSnafu)?
.into_iter()
.map(|(region_number, rows)| DeleteRequest {
region_id: RegionId::new(table_id, region_number).into(),
rows: Some(rows),
})
.collect();
Ok(requests)
}
}