opendal/services/hdfs/
delete.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::io;
19use std::sync::Arc;
20
21use super::backend::HdfsBackend;
22use crate::raw::*;
23use crate::*;
24
25pub struct HdfsDeleter {
26    core: Arc<HdfsBackend>,
27}
28
29impl HdfsDeleter {
30    pub fn new(core: Arc<HdfsBackend>) -> Self {
31        Self { core }
32    }
33}
34
35impl oio::OneShotDelete for HdfsDeleter {
36    async fn delete_once(&self, path: String, _: OpDelete) -> Result<()> {
37        let p = build_rooted_abs_path(&self.core.root, &path);
38
39        let meta = self.core.client.metadata(&p);
40
41        if let Err(err) = meta {
42            return if err.kind() == io::ErrorKind::NotFound {
43                Ok(())
44            } else {
45                Err(new_std_io_error(err))
46            };
47        }
48
49        // Safety: Err branch has been checked, it's OK to unwrap.
50        let meta = meta.ok().unwrap();
51
52        let result = if meta.is_dir() {
53            self.core.client.remove_dir(&p)
54        } else {
55            self.core.client.remove_file(&p)
56        };
57
58        result.map_err(new_std_io_error)?;
59
60        Ok(())
61    }
62}
opendal/services/hdfs/delete.rs

opendal/services/hdfs/
delete.rs
